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Fix start with connect by.

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This commit is contained in:
TotaJ
2022-02-08 17:00:31 +08:00
parent 90927657fd
commit 59b5b97b32
16 changed files with 6232 additions and 9 deletions
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50
src/common/backend/parser/parse_startwith.cpp
View File

@ -159,6 +159,7 @@ static void CreateStartWithCTE(ParseState *pstate,
static Node *makeBoolAConst(bool state, int location);
static StartWithRewrite ChooseSWCBStrategy(StartWithTransformContext context);
static Node *tryReplaceFakeValue(Node *node);
static Node *makeBoolAConst(bool state, int location)
{
@ -754,17 +755,38 @@ static Node* makeIntConst(int val, int location)
return (Node *)n;
}
static Node* tryReplaceFakeValue(Node *node)
static Node *replaceListFakeValue(List *lst)
{
List *newArgs = NIL;
ListCell *lc = NULL;
bool replaced = false;
/* replace level/rownum var attr with fake consts */
foreach (lc, lst) {
Node *n = (Node *)lfirst(lc);
Node *newNode = tryReplaceFakeValue(n);
if (newNode != n) {
replaced = true;
n = newNode;
}
newArgs = lappend(newArgs, n);
}
return replaced ? (Node *)newArgs : (Node *)lst;
}
static Node *tryReplaceFakeValue(Node *node)
{
if (IsA(node, Rownum)) {
node = makeIntConst(CONNECT_BY_ROWNUM_FAKEVALUE, -1);
} else if (is_cref_by_name(node, "level")) {
node = makeIntConst(CONNECT_BY_LEVEL_FAKEVALUE, -1);
} else if (IsA(node, List)) {
node = replaceListFakeValue((List *) node);
}
return node;
}
static bool pseudo_level_rownum_walker(Node *node, Node* context_parent_node)
static bool pseudo_level_rownum_walker(Node *node, Node *context_parent_node)
{
if (node == NULL) {
return false;
@ -789,15 +811,20 @@ static bool pseudo_level_rownum_walker(Node *node, Node* context_parent_node)
break;
}
case T_TypeCast: {
TypeCast* tc = (TypeCast*) context_parent_node;
TypeCast *tc = (TypeCast *) context_parent_node;
tc->arg = newNode;
break;
}
case T_NullTest: {
NullTest* nt = (NullTest*) context_parent_node;
NullTest *nt = (NullTest *) context_parent_node;
nt->arg = (Expr*) newNode;
break;
}
case T_FuncCall: {
FuncCall *fc = (FuncCall *) context_parent_node;
fc->args = (List *)newNode;
break;
}
default:
break;
}
@ -1288,7 +1315,8 @@ static SelectStmt *CreateStartWithCTEInnerBranch(ParseState* pstate,
if (whereClause != NULL) {
JoinExpr *final_join = (JoinExpr *)origin_table;
final_join->quals = whereClause;
/* pushdown requires deep copying of the quals */
final_join->quals = (Node *)copyObject(whereClause);
}
}
@ -1387,10 +1415,14 @@ static SelectStmt *CreateStartWithCTEOuterBranch(ParseState *pstate,
}
}
if (whereClause == NULL) {
quals = (Node *)startWithExpr;
} else {
quals = (Node *)makeA_Expr(AEXPR_AND, NULL, whereClause, (Node*)startWithExpr, -1);
/* push whereClause down to init part, taking care to avoid NULL in expr. */
quals = (Node *)startWithExpr;
if (quals == NULL) {
/* pushdown requires deep copying of the quals */
quals = (Node *)copyObject(whereClause);
} else if (whereClause != NULL) {
quals = (Node *)makeA_Expr(AEXPR_AND, NULL, (Node *)copyObject(whereClause),
(Node*)startWithExpr, -1);
}
result->fromClause = tblist;

630
src/test/regress/expected/sw_basic.out Normal file
View File

@ -0,0 +1,630 @@
set client_min_messages = error;
set search_path=swtest;
SET CLIENT_ENCODING='UTF8';
/*
*
* START WITH .... CONNECT BY基础测试用例
*
* 测试用例表数
* openGauss=# select * from swtest.test_area;
* id | name | fatherid | name_desc
* ----+--------+----------+-----------
* 1 | 中国 | 0 | china
* 2 | 湖南省 | 1 | hunan
* 3 | 广东省 | 1 | guangdong
* 4 | 海南省 | 1 | hainan
* 5 | 河北省 | 1 | hebei
* 6 | 河南省 | 1 | henan
* 7 | 山东省 | 1 | shandong
* 8 | 湖北省 | 1 | hubei
* 9 | 江苏省 | 1 | jiangsu
* 10 | 深圳市 | 3 | shenzhen
* 11 | 长沙市 | 2 | changsha
* 22 | 祁北县 | 13 | qibei
* 12 | 南山区 | 10 | nanshan
* 21 | 祁西县 | 13 | qixi
* 13 | 衡阳市 | 2 | hengyang
* 14 | 耒阳市 | 13 | leiyang
* 15 | 龙岗区 | 10 | longgang
* 16 | 福田区 | 10 | futian
* 17 | 宝安区 | 10 | baoan
* 19 | 祁东县 | 13 | qidong
* 18 | 常宁市 | 13 | changning
* 20 | 祁南县 | 13 | qinan
*
*/
-- 一、基础语法测试
/*
* 用例1.1，基础用例包含所有伪列，leaf节点方向遍历查找
**/
EXPLAIN (COSTS OFF)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '@')
FROM test_area
START WITH name = '中国'
CONNECT BY PRIOR id = fatherid;
QUERY PLAN
------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1, array_col_4
-> Recursive Union
-> Seq Scan on test_area
Filter: (name = '中国'::text)
-> Hash Join
Hash Cond: (swtest.test_area.fatherid = tmp_reuslt."test_area@id")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(12 rows)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '@')
FROM test_area
START WITH name = '中国'
CONNECT BY PRIOR id = fatherid;
id | name | fatherid | name_desc | level | connect_by_isleaf | connect_by_iscycle | connect_by_root | sys_connect_by_path
----+--------+----------+-----------+-------+-------------------+--------------------+-----------------+------------------------------------
1 | 中国 | 0 | China | 1 | 0 | 0 | China | @China
2 | 湖南省 | 1 | Hunan | 2 | 0 | 0 | China | @China@Hunan
3 | 广东省 | 1 | Guangdong | 2 | 0 | 0 | China | @China@Guangdong
4 | 海南省 | 1 | Hainan | 2 | 1 | 0 | China | @China@Hainan
5 | 河北省 | 1 | Hebei | 2 | 1 | 0 | China | @China@Hebei
6 | 河南省 | 1 | Henan | 2 | 1 | 0 | China | @China@Henan
7 | 山东省 | 1 | Shandong | 2 | 1 | 0 | China | @China@Shandong
8 | 湖北省 | 1 | Hubei | 2 | 1 | 0 | China | @China@Hubei
9 | 江苏省 | 1 | Jiangsu | 2 | 1 | 0 | China | @China@Jiangsu
10 | 深圳市 | 3 | Shenzhen | 3 | 0 | 0 | China | @China@Guangdong@Shenzhen
11 | 长沙市 | 2 | Changsha | 3 | 1 | 0 | China | @China@Hunan@Changsha
13 | 衡阳市 | 2 | Hengyang | 3 | 0 | 0 | China | @China@Hunan@Hengyang
22 | 祁北县 | 13 | Qibei | 4 | 1 | 0 | China | @China@Hunan@Hengyang@Qibei
12 | 南山区 | 10 | Nanshan | 4 | 1 | 0 | China | @China@Guangdong@Shenzhen@Nanshan
21 | 祁西县 | 13 | Qixi | 4 | 1 | 0 | China | @China@Hunan@Hengyang@Qixi
14 | 耒阳市 | 13 | Leiyang | 4 | 1 | 0 | China | @China@Hunan@Hengyang@Leiyang
15 | 龙岗区 | 10 | Longgang | 4 | 1 | 0 | China | @China@Guangdong@Shenzhen@Longgang
16 | 福田区 | 10 | Futian | 4 | 1 | 0 | China | @China@Guangdong@Shenzhen@Futian
17 | 宝安区 | 10 | Baoan | 4 | 1 | 0 | China | @China@Guangdong@Shenzhen@Baoan
19 | 祁东县 | 13 | Qidong | 4 | 1 | 0 | China | @China@Hunan@Hengyang@Qidong
18 | 常宁市 | 13 | Changning | 4 | 1 | 0 | China | @China@Hunan@Hengyang@Changning
20 | 祁南县 | 13 | Qinan | 4 | 1 | 0 | China | @China@Hunan@Hengyang@Qinan
(22 rows)
/*
* 用例1.2，基础用例包含所有伪列，root节点方向遍历查找
**/
EXPLAIN (COSTS OFF)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '@')
FROM test_area
START WITH name = '耒阳市'
CONNECT BY id = PRIOR fatherid;
QUERY PLAN
------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_3, array_col_4
-> Recursive Union
-> Seq Scan on test_area
Filter: (name = '耒阳市'::text)
-> Hash Join
Hash Cond: (swtest.test_area.id = tmp_reuslt."test_area@fatherid")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(12 rows)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '@')
FROM test_area
START WITH name = '耒阳市'
CONNECT BY id = PRIOR fatherid;
id | name | fatherid | name_desc | level | connect_by_isleaf | connect_by_iscycle | connect_by_root | sys_connect_by_path
----+--------+----------+-----------+-------+-------------------+--------------------+-----------------+-------------------------------
14 | 耒阳市 | 13 | Leiyang | 1 | 0 | 0 | Leiyang | @Leiyang
13 | 衡阳市 | 2 | Hengyang | 2 | 0 | 0 | Leiyang | @Leiyang@Hengyang
2 | 湖南省 | 1 | Hunan | 3 | 0 | 0 | Leiyang | @Leiyang@Hengyang@Hunan
1 | 中国 | 0 | China | 4 | 1 | 0 | Leiyang | @Leiyang@Hengyang@Hunan@China
(4 rows)
/*
* 用例1.3，基础用例包含所有伪列，root节点方向遍历查找（两条链）
**/
EXPLAIN (COSTS OFF)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '@')
FROM test_area
START WITH name = '耒阳市' OR name = '宝安区'
CONNECT BY id = PRIOR fatherid;
QUERY PLAN
------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_3, array_col_4
-> Recursive Union
-> Seq Scan on test_area
Filter: ((name = '耒阳市'::text) OR (name = '宝安区'::text))
-> Hash Join
Hash Cond: (swtest.test_area.id = tmp_reuslt."test_area@fatherid")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(12 rows)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '@')
FROM test_area
START WITH name = '耒阳市' OR name = '宝安区'
CONNECT BY id = PRIOR fatherid;
id | name | fatherid | name_desc | level | connect_by_isleaf | connect_by_iscycle | connect_by_root | sys_connect_by_path
----+--------+----------+-----------+-------+-------------------+--------------------+-----------------+---------------------------------
14 | 耒阳市 | 13 | Leiyang | 1 | 0 | 0 | Leiyang | @Leiyang
17 | 宝安区 | 10 | Baoan | 1 | 0 | 0 | Baoan | @Baoan
10 | 深圳市 | 3 | Shenzhen | 2 | 0 | 0 | Baoan | @Baoan@Shenzhen
13 | 衡阳市 | 2 | Hengyang | 2 | 0 | 0 | Leiyang | @Leiyang@Hengyang
2 | 湖南省 | 1 | Hunan | 3 | 0 | 0 | Leiyang | @Leiyang@Hengyang@Hunan
3 | 广东省 | 1 | Guangdong | 3 | 0 | 0 | Baoan | @Baoan@Shenzhen@Guangdong
1 | 中国 | 0 | China | 4 | 1 | 0 | Baoan | @Baoan@Shenzhen@Guangdong@China
1 | 中国 | 0 | China | 4 | 1 | 0 | Leiyang | @Leiyang@Hengyang@Hunan@China
(8 rows)
/*
* 用例1.5，基础用例包含所有伪列，测试多字符串拼接
**/
EXPLAIN (COSTS OFF)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '=>>')
FROM test_area
START WITH name = '中国'
CONNECT BY PRIOR id = fatherid;
QUERY PLAN
------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1, array_col_4
-> Recursive Union
-> Seq Scan on test_area
Filter: (name = '中国'::text)
-> Hash Join
Hash Cond: (swtest.test_area.fatherid = tmp_reuslt."test_area@id")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(12 rows)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '=>>')
FROM test_area
START WITH name = '中国'
CONNECT BY PRIOR id = fatherid;
id | name | fatherid | name_desc | level | connect_by_isleaf | connect_by_iscycle | connect_by_root | sys_connect_by_path
----+--------+----------+-----------+-------+-------------------+--------------------+-----------------+--------------------------------------------
1 | 中国 | 0 | China | 1 | 0 | 0 | China | =>>China
2 | 湖南省 | 1 | Hunan | 2 | 0 | 0 | China | =>>China=>>Hunan
3 | 广东省 | 1 | Guangdong | 2 | 0 | 0 | China | =>>China=>>Guangdong
4 | 海南省 | 1 | Hainan | 2 | 1 | 0 | China | =>>China=>>Hainan
5 | 河北省 | 1 | Hebei | 2 | 1 | 0 | China | =>>China=>>Hebei
6 | 河南省 | 1 | Henan | 2 | 1 | 0 | China | =>>China=>>Henan
7 | 山东省 | 1 | Shandong | 2 | 1 | 0 | China | =>>China=>>Shandong
8 | 湖北省 | 1 | Hubei | 2 | 1 | 0 | China | =>>China=>>Hubei
9 | 江苏省 | 1 | Jiangsu | 2 | 1 | 0 | China | =>>China=>>Jiangsu
10 | 深圳市 | 3 | Shenzhen | 3 | 0 | 0 | China | =>>China=>>Guangdong=>>Shenzhen
11 | 长沙市 | 2 | Changsha | 3 | 1 | 0 | China | =>>China=>>Hunan=>>Changsha
13 | 衡阳市 | 2 | Hengyang | 3 | 0 | 0 | China | =>>China=>>Hunan=>>Hengyang
22 | 祁北县 | 13 | Qibei | 4 | 1 | 0 | China | =>>China=>>Hunan=>>Hengyang=>>Qibei
12 | 南山区 | 10 | Nanshan | 4 | 1 | 0 | China | =>>China=>>Guangdong=>>Shenzhen=>>Nanshan
21 | 祁西县 | 13 | Qixi | 4 | 1 | 0 | China | =>>China=>>Hunan=>>Hengyang=>>Qixi
14 | 耒阳市 | 13 | Leiyang | 4 | 1 | 0 | China | =>>China=>>Hunan=>>Hengyang=>>Leiyang
15 | 龙岗区 | 10 | Longgang | 4 | 1 | 0 | China | =>>China=>>Guangdong=>>Shenzhen=>>Longgang
16 | 福田区 | 10 | Futian | 4 | 1 | 0 | China | =>>China=>>Guangdong=>>Shenzhen=>>Futian
17 | 宝安区 | 10 | Baoan | 4 | 1 | 0 | China | =>>China=>>Guangdong=>>Shenzhen=>>Baoan
19 | 祁东县 | 13 | Qidong | 4 | 1 | 0 | China | =>>China=>>Hunan=>>Hengyang=>>Qidong
18 | 常宁市 | 13 | Changning | 4 | 1 | 0 | China | =>>China=>>Hunan=>>Hengyang=>>Changning
20 | 祁南县 | 13 | Qinan | 4 | 1 | 0 | China | =>>China=>>Hunan=>>Hengyang=>>Qinan
(22 rows)
/*
* 用例1.6，基础用例包含所有伪列， 包含多字符拼接，多条查找链，startwith使用LIKE查找
**/
EXPLAIN (COSTS OFF)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '-*>')
FROM test_area
START WITH name like '%区'
CONNECT BY id = PRIOR fatherid;
QUERY PLAN
------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_3, array_col_4
-> Recursive Union
-> Seq Scan on test_area
Filter: (name ~~ '%区'::text)
-> Hash Join
Hash Cond: (tmp_reuslt."test_area@fatherid" = swtest.test_area.id)
-> WorkTable Scan on tmp_reuslt
-> Hash
-> Seq Scan on test_area
(12 rows)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '-*>')
FROM test_area
START WITH name like '%区'
CONNECT BY id = PRIOR fatherid;
id | name | fatherid | name_desc | level | connect_by_isleaf | connect_by_iscycle | connect_by_root | sys_connect_by_path
----+--------+----------+-----------+-------+-------------------+--------------------+-----------------+--------------------------------------------
12 | 南山区 | 10 | Nanshan | 1 | 0 | 0 | Nanshan | -*>Nanshan
15 | 龙岗区 | 10 | Longgang | 1 | 0 | 0 | Longgang | -*>Longgang
16 | 福田区 | 10 | Futian | 1 | 0 | 0 | Futian | -*>Futian
17 | 宝安区 | 10 | Baoan | 1 | 0 | 0 | Baoan | -*>Baoan
10 | 深圳市 | 3 | Shenzhen | 2 | 0 | 0 | Nanshan | -*>Nanshan-*>Shenzhen
10 | 深圳市 | 3 | Shenzhen | 2 | 0 | 0 | Longgang | -*>Longgang-*>Shenzhen
10 | 深圳市 | 3 | Shenzhen | 2 | 0 | 0 | Futian | -*>Futian-*>Shenzhen
10 | 深圳市 | 3 | Shenzhen | 2 | 0 | 0 | Baoan | -*>Baoan-*>Shenzhen
3 | 广东省 | 1 | Guangdong | 3 | 0 | 0 | Nanshan | -*>Nanshan-*>Shenzhen-*>Guangdong
3 | 广东省 | 1 | Guangdong | 3 | 0 | 0 | Longgang | -*>Longgang-*>Shenzhen-*>Guangdong
3 | 广东省 | 1 | Guangdong | 3 | 0 | 0 | Futian | -*>Futian-*>Shenzhen-*>Guangdong
3 | 广东省 | 1 | Guangdong | 3 | 0 | 0 | Baoan | -*>Baoan-*>Shenzhen-*>Guangdong
1 | 中国 | 0 | China | 4 | 1 | 0 | Nanshan | -*>Nanshan-*>Shenzhen-*>Guangdong-*>China
1 | 中国 | 0 | China | 4 | 1 | 0 | Longgang | -*>Longgang-*>Shenzhen-*>Guangdong-*>China
1 | 中国 | 0 | China | 4 | 1 | 0 | Futian | -*>Futian-*>Shenzhen-*>Guangdong-*>China
1 | 中国 | 0 | China | 4 | 1 | 0 | Baoan | -*>Baoan-*>Shenzhen-*>Guangdong-*>China
(16 rows)
-- 二、扩展测试
/*
* 用例2.1，基础用例包含所有伪列， 包含多字符拼接，多条查找链，startwith使用IN子查询进行查找
**/
EXPLAIN (COSTS OFF)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '/')
FROM test_area
START WITH name IN (select name from test_area where id < 3)
CONNECT BY PRIOR id = fatherid;
QUERY PLAN
------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1, array_col_4
-> Recursive Union
-> Hash Semi Join
Hash Cond: (swtest.test_area.name = swtest.test_area.name)
-> Seq Scan on test_area
-> Hash
-> Seq Scan on test_area
Filter: (id < 3)
-> Hash Join
Hash Cond: (swtest.test_area.fatherid = tmp_reuslt."test_area@id")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(16 rows)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '/')
FROM test_area
START WITH name IN (select name from test_area where id < 3)
CONNECT BY PRIOR id = fatherid;
id | name | fatherid | name_desc | level | connect_by_isleaf | connect_by_iscycle | connect_by_root | sys_connect_by_path
----+--------+----------+-----------+-------+-------------------+--------------------+-----------------+------------------------------------
1 | 中国 | 0 | China | 1 | 0 | 0 | China | /China
2 | 湖南省 | 1 | Hunan | 1 | 0 | 0 | Hunan | /Hunan
2 | 湖南省 | 1 | Hunan | 2 | 0 | 0 | China | /China/Hunan
3 | 广东省 | 1 | Guangdong | 2 | 0 | 0 | China | /China/Guangdong
4 | 海南省 | 1 | Hainan | 2 | 1 | 0 | China | /China/Hainan
5 | 河北省 | 1 | Hebei | 2 | 1 | 0 | China | /China/Hebei
6 | 河南省 | 1 | Henan | 2 | 1 | 0 | China | /China/Henan
7 | 山东省 | 1 | Shandong | 2 | 1 | 0 | China | /China/Shandong
8 | 湖北省 | 1 | Hubei | 2 | 1 | 0 | China | /China/Hubei
9 | 江苏省 | 1 | Jiangsu | 2 | 1 | 0 | China | /China/Jiangsu
11 | 长沙市 | 2 | Changsha | 2 | 1 | 0 | Hunan | /Hunan/Changsha
13 | 衡阳市 | 2 | Hengyang | 2 | 0 | 0 | Hunan | /Hunan/Hengyang
10 | 深圳市 | 3 | Shenzhen | 3 | 0 | 0 | China | /China/Guangdong/Shenzhen
11 | 长沙市 | 2 | Changsha | 3 | 1 | 0 | China | /China/Hunan/Changsha
22 | 祁北县 | 13 | Qibei | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Qibei
21 | 祁西县 | 13 | Qixi | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Qixi
13 | 衡阳市 | 2 | Hengyang | 3 | 0 | 0 | China | /China/Hunan/Hengyang
14 | 耒阳市 | 13 | Leiyang | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Leiyang
19 | 祁东县 | 13 | Qidong | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Qidong
18 | 常宁市 | 13 | Changning | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Changning
20 | 祁南县 | 13 | Qinan | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Qinan
22 | 祁北县 | 13 | Qibei | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Qibei
12 | 南山区 | 10 | Nanshan | 4 | 1 | 0 | China | /China/Guangdong/Shenzhen/Nanshan
21 | 祁西县 | 13 | Qixi | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Qixi
14 | 耒阳市 | 13 | Leiyang | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Leiyang
15 | 龙岗区 | 10 | Longgang | 4 | 1 | 0 | China | /China/Guangdong/Shenzhen/Longgang
16 | 福田区 | 10 | Futian | 4 | 1 | 0 | China | /China/Guangdong/Shenzhen/Futian
17 | 宝安区 | 10 | Baoan | 4 | 1 | 0 | China | /China/Guangdong/Shenzhen/Baoan
19 | 祁东县 | 13 | Qidong | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Qidong
18 | 常宁市 | 13 | Changning | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Changning
20 | 祁南县 | 13 | Qinan | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Qinan
(31 rows)
/*
* 用例2.2，基础用例包含所有伪列， 包含多字符拼接，多条查找链，startwith使用IN子查询进行查找，结果集进行伪列过滤
**/
EXPLAIN (COSTS OFF)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '/')
FROM test_area
WHERE LEVEL > 2
START WITH name IN (select name from test_area where id < 3)
CONNECT BY PRIOR id = fatherid;
QUERY PLAN
------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
Filter: (level > 2)
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1, array_col_4
-> Recursive Union
-> Hash Semi Join
Hash Cond: (swtest.test_area.name = swtest.test_area.name)
-> Seq Scan on test_area
-> Hash
-> Seq Scan on test_area
Filter: (id < 3)
-> Hash Join
Hash Cond: (swtest.test_area.fatherid = tmp_reuslt."test_area@id")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(17 rows)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '/')
FROM test_area
WHERE LEVEL > 2
START WITH name IN (select name from test_area where id < 3)
CONNECT BY PRIOR id = fatherid;
id | name | fatherid | name_desc | level | connect_by_isleaf | connect_by_iscycle | connect_by_root | sys_connect_by_path
----+--------+----------+-----------+-------+-------------------+--------------------+-----------------+------------------------------------
10 | 深圳市 | 3 | Shenzhen | 3 | 0 | 0 | China | /China/Guangdong/Shenzhen
11 | 长沙市 | 2 | Changsha | 3 | 1 | 0 | China | /China/Hunan/Changsha
22 | 祁北县 | 13 | Qibei | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Qibei
21 | 祁西县 | 13 | Qixi | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Qixi
13 | 衡阳市 | 2 | Hengyang | 3 | 0 | 0 | China | /China/Hunan/Hengyang
14 | 耒阳市 | 13 | Leiyang | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Leiyang
19 | 祁东县 | 13 | Qidong | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Qidong
18 | 常宁市 | 13 | Changning | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Changning
20 | 祁南县 | 13 | Qinan | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Qinan
22 | 祁北县 | 13 | Qibei | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Qibei
12 | 南山区 | 10 | Nanshan | 4 | 1 | 0 | China | /China/Guangdong/Shenzhen/Nanshan
21 | 祁西县 | 13 | Qixi | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Qixi
14 | 耒阳市 | 13 | Leiyang | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Leiyang
15 | 龙岗区 | 10 | Longgang | 4 | 1 | 0 | China | /China/Guangdong/Shenzhen/Longgang
16 | 福田区 | 10 | Futian | 4 | 1 | 0 | China | /China/Guangdong/Shenzhen/Futian
17 | 宝安区 | 10 | Baoan | 4 | 1 | 0 | China | /China/Guangdong/Shenzhen/Baoan
19 | 祁东县 | 13 | Qidong | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Qidong
18 | 常宁市 | 13 | Changning | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Changning
20 | 祁南县 | 13 | Qinan | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Qinan
(19 rows)
/*
* 用例2.3，基础用例包含所有伪列， 包含多字符拼接，多条查找链，startwith使用IN子查询进行查找，结果集进行多个伪列过滤
**/
EXPLAIN (COSTS OFF)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '/')
FROM test_area
WHERE LEVEL > 2 AND connect_by_iscycle IS NOT NULL
START WITH name IN (select name from test_area where id < 3)
CONNECT BY PRIOR id = fatherid;
QUERY PLAN
------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
Filter: ((connect_by_iscycle IS NOT NULL) AND (level > 2))
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1, array_col_4
-> Recursive Union
-> Hash Semi Join
Hash Cond: (swtest.test_area.name = swtest.test_area.name)
-> Seq Scan on test_area
-> Hash
-> Seq Scan on test_area
Filter: (id < 3)
-> Hash Join
Hash Cond: (swtest.test_area.fatherid = tmp_reuslt."test_area@id")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(17 rows)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '/')
FROM test_area
WHERE LEVEL > 2 AND connect_by_iscycle IS NOT NULL
START WITH name IN (select name from test_area where id < 3)
CONNECT BY PRIOR id = fatherid;
id | name | fatherid | name_desc | level | connect_by_isleaf | connect_by_iscycle | connect_by_root | sys_connect_by_path
----+--------+----------+-----------+-------+-------------------+--------------------+-----------------+------------------------------------
10 | 深圳市 | 3 | Shenzhen | 3 | 0 | 0 | China | /China/Guangdong/Shenzhen
11 | 长沙市 | 2 | Changsha | 3 | 1 | 0 | China | /China/Hunan/Changsha
22 | 祁北县 | 13 | Qibei | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Qibei
21 | 祁西县 | 13 | Qixi | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Qixi
13 | 衡阳市 | 2 | Hengyang | 3 | 0 | 0 | China | /China/Hunan/Hengyang
14 | 耒阳市 | 13 | Leiyang | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Leiyang
19 | 祁东县 | 13 | Qidong | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Qidong
18 | 常宁市 | 13 | Changning | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Changning
20 | 祁南县 | 13 | Qinan | 3 | 1 | 0 | Hunan | /Hunan/Hengyang/Qinan
22 | 祁北县 | 13 | Qibei | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Qibei
12 | 南山区 | 10 | Nanshan | 4 | 1 | 0 | China | /China/Guangdong/Shenzhen/Nanshan
21 | 祁西县 | 13 | Qixi | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Qixi
14 | 耒阳市 | 13 | Leiyang | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Leiyang
15 | 龙岗区 | 10 | Longgang | 4 | 1 | 0 | China | /China/Guangdong/Shenzhen/Longgang
16 | 福田区 | 10 | Futian | 4 | 1 | 0 | China | /China/Guangdong/Shenzhen/Futian
17 | 宝安区 | 10 | Baoan | 4 | 1 | 0 | China | /China/Guangdong/Shenzhen/Baoan
19 | 祁东县 | 13 | Qidong | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Qidong
18 | 常宁市 | 13 | Changning | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Changning
20 | 祁南县 | 13 | Qinan | 4 | 1 | 0 | China | /China/Hunan/Hengyang/Qinan
(19 rows)
-- 三、 打开guc enable_startwith_debug = on测试
/* DFX test, verify if */
set enable_startwith_debug=on;
set client_min_messages=log;
explain (costs off)
select *, LEVEL, CONNECT_BY_ROOT(name_desc), SYS_CONNECT_BY_PATH(name, '/') cpath from test_area
START WITH name = '耒阳市'
CONNECT BY id = PRIOR fatherid;
LOG: statement: explain (costs off)
select *, LEVEL, CONNECT_BY_ROOT(name_desc), SYS_CONNECT_BY_PATH(name, '/') cpath from test_area
START WITH name = '耒阳市'
CONNECT BY id = PRIOR fatherid;
LOG: Accept a other Const val when evaluate FakeConst to rownum/level
WARNING: Pushdown pseudo_tlist >>>>> [ -> WorkTableScan(tlist_len:12) -> Hash(tlist_len:12) -> HashJoin(tlist_len:12) -> RecursiveUnion(tlist_len:12)]
WARNING: Pushdown pseudo_tlist >>>>> [ -> CteScan(tlist_len:11)]
QUERY PLAN
------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_3, array_col_2, array_col_4
-> Recursive Union
-> Seq Scan on test_area
Filter: (name = '耒阳市'::text)
-> Hash Join
Hash Cond: (swtest.test_area.id = tmp_reuslt."test_area@fatherid")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(12 rows)
select *, LEVEL, CONNECT_BY_ROOT(name_desc), SYS_CONNECT_BY_PATH(name, '/') cpath from test_area
START WITH name = '耒阳市'
CONNECT BY id = PRIOR fatherid;
LOG: statement: select *, LEVEL, CONNECT_BY_ROOT(name_desc), SYS_CONNECT_BY_PATH(name, '/') cpath from test_area
START WITH name = '耒阳市'
CONNECT BY id = PRIOR fatherid;
LOG: Accept a other Const val when evaluate FakeConst to rownum/level
WARNING: Pushdown pseudo_tlist >>>>> [ -> WorkTableScan(tlist_len:12) -> Hash(tlist_len:12) -> HashJoin(tlist_len:12) -> RecursiveUnion(tlist_len:12)]
WARNING: Pushdown pseudo_tlist >>>>> [ -> CteScan(tlist_len:11)]
LOG: StartWithDebug: LEVEL:1 array_key_1:/{13}
LOG: StartWithDebug: LEVEL:2 array_key_1:/{13}/{2}
LOG: StartWithDebug: LEVEL:3 array_key_1:/{13}/{2}/{1}
LOG: StartWithDebug: LEVEL:4 array_key_1:/{13}/{2}/{1}/{0}
id | name | fatherid | name_desc | level | connect_by_root | cpath | RUITR | array_key_3 | array_col_2 | array_col_4
----+--------+----------+-----------+-------+-----------------+----------------------------+-------+-------------------+----------------------------+-------------------------------
14 | 耒阳市 | 13 | Leiyang | 1 | Leiyang | /耒阳市 | 0 | /{13} | /耒阳市 | /Leiyang
13 | 衡阳市 | 2 | Hengyang | 2 | Leiyang | /耒阳市/衡阳市 | 1 | /{13}/{2} | /耒阳市/衡阳市 | /Leiyang/Hengyang
2 | 湖南省 | 1 | Hunan | 3 | Leiyang | /耒阳市/衡阳市/湖南省 | 2 | /{13}/{2}/{1} | /耒阳市/衡阳市/湖南省 | /Leiyang/Hengyang/Hunan
1 | 中国 | 0 | China | 4 | Leiyang | /耒阳市/衡阳市/湖南省/中国 | 3 | /{13}/{2}/{1}/{0} | /耒阳市/衡阳市/湖南省/中国 | /Leiyang/Hengyang/Hunan/China
(4 rows)
explain (costs off)
select *, LEVEL, CONNECT_BY_ROOT(name_desc), SYS_CONNECT_BY_PATH(name, '/') cpath from test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
order siblings by id;
LOG: statement: explain (costs off)
select *, LEVEL, CONNECT_BY_ROOT(name_desc), SYS_CONNECT_BY_PATH(name, '/') cpath from test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
order siblings by id;
LOG: Accept a other Const val when evaluate FakeConst to rownum/level
WARNING: Good we got siblings sort key under RU.
WARNING: Good we got siblings sort key under RU.
WARNING: Good we got siblings sort key above RU.
WARNING: Pushdown pseudo_tlist >>>>> [ -> WorkTableScan(tlist_len:13) -> Hash(tlist_len:13) -> HashJoin(tlist_len:13) -> Sort(tlist_len:13) -> RecursiveUnion(tlist_len:13)]
WARNING: Pushdown pseudo_tlist >>>>> [ -> CteScan(tlist_len:12)]
QUERY PLAN
------------------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1, array_col_2, array_col_4, array_siblings
-> Sort
Sort Key: array_siblings
-> Recursive Union
-> Sort
Sort Key: swtest.test_area.id
-> Seq Scan on test_area
Filter: (name = '中国'::text)
-> Sort
Sort Key: swtest.test_area.id
-> Hash Join
Hash Cond: (swtest.test_area.fatherid = tmp_reuslt."test_area@id")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(18 rows)
select *, LEVEL, CONNECT_BY_ROOT(name_desc), SYS_CONNECT_BY_PATH(name, '/') cpath from test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
order siblings by id;
LOG: statement: select *, LEVEL, CONNECT_BY_ROOT(name_desc), SYS_CONNECT_BY_PATH(name, '/') cpath from test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
order siblings by id;
LOG: Accept a other Const val when evaluate FakeConst to rownum/level
WARNING: Good we got siblings sort key under RU.
WARNING: Good we got siblings sort key under RU.
WARNING: Good we got siblings sort key above RU.
WARNING: Pushdown pseudo_tlist >>>>> [ -> WorkTableScan(tlist_len:13) -> Hash(tlist_len:13) -> HashJoin(tlist_len:13) -> Sort(tlist_len:13) -> RecursiveUnion(tlist_len:13)]
WARNING: Pushdown pseudo_tlist >>>>> [ -> CteScan(tlist_len:12)]
LOG: siblings key is \x01000000 current level is 1 tuple position is 1.
LOG: StartWithDebug: LEVEL:1 array_key_1:/{1}
LOG: siblings key is \x0100000001000000 current level is 2 tuple position is 1
LOG: StartWithDebug: LEVEL:2 array_key_1:/{1}/{2}
LOG: siblings key is \x0100000002000000 current level is 2 tuple position is 2
LOG: StartWithDebug: LEVEL:2 array_key_1:/{1}/{3}
LOG: siblings key is \x0100000003000000 current level is 2 tuple position is 3
LOG: StartWithDebug: LEVEL:2 array_key_1:/{1}/{4}
LOG: siblings key is \x0100000004000000 current level is 2 tuple position is 4
LOG: StartWithDebug: LEVEL:2 array_key_1:/{1}/{5}
LOG: siblings key is \x0100000005000000 current level is 2 tuple position is 5
LOG: StartWithDebug: LEVEL:2 array_key_1:/{1}/{6}
LOG: siblings key is \x0100000006000000 current level is 2 tuple position is 6
LOG: StartWithDebug: LEVEL:2 array_key_1:/{1}/{7}
LOG: siblings key is \x0100000007000000 current level is 2 tuple position is 7
LOG: StartWithDebug: LEVEL:2 array_key_1:/{1}/{8}
LOG: siblings key is \x0100000008000000 current level is 2 tuple position is 8
LOG: StartWithDebug: LEVEL:2 array_key_1:/{1}/{9}
LOG: siblings key is \x010000000200000001000000 current level is 3 tuple position is 1
LOG: StartWithDebug: LEVEL:3 array_key_1:/{1}/{3}/{10}
LOG: siblings key is \x010000000100000002000000 current level is 3 tuple position is 2
LOG: StartWithDebug: LEVEL:3 array_key_1:/{1}/{2}/{11}
LOG: siblings key is \x010000000100000003000000 current level is 3 tuple position is 3
LOG: StartWithDebug: LEVEL:3 array_key_1:/{1}/{2}/{13}
LOG: siblings key is \x01000000020000000100000001000000 current level is 4 tuple position is 1
LOG: StartWithDebug: LEVEL:4 array_key_1:/{1}/{3}/{10}/{12}
LOG: siblings key is \x01000000010000000300000002000000 current level is 4 tuple position is 2
LOG: StartWithDebug: LEVEL:4 array_key_1:/{1}/{2}/{13}/{14}
LOG: siblings key is \x01000000020000000100000003000000 current level is 4 tuple position is 3
LOG: StartWithDebug: LEVEL:4 array_key_1:/{1}/{3}/{10}/{15}
LOG: siblings key is \x01000000020000000100000004000000 current level is 4 tuple position is 4
LOG: StartWithDebug: LEVEL:4 array_key_1:/{1}/{3}/{10}/{16}
LOG: siblings key is \x01000000020000000100000005000000 current level is 4 tuple position is 5
LOG: StartWithDebug: LEVEL:4 array_key_1:/{1}/{3}/{10}/{17}
LOG: siblings key is \x01000000010000000300000006000000 current level is 4 tuple position is 6
LOG: StartWithDebug: LEVEL:4 array_key_1:/{1}/{2}/{13}/{18}
LOG: siblings key is \x01000000010000000300000007000000 current level is 4 tuple position is 7
LOG: StartWithDebug: LEVEL:4 array_key_1:/{1}/{2}/{13}/{19}
LOG: siblings key is \x01000000010000000300000008000000 current level is 4 tuple position is 8
LOG: StartWithDebug: LEVEL:4 array_key_1:/{1}/{2}/{13}/{20}
LOG: siblings key is \x01000000010000000300000009000000 current level is 4 tuple position is 9
LOG: StartWithDebug: LEVEL:4 array_key_1:/{1}/{2}/{13}/{21}
LOG: siblings key is \x0100000001000000030000000a000000 current level is 4 tuple position is 10
LOG: StartWithDebug: LEVEL:4 array_key_1:/{1}/{2}/{13}/{22}
id | name | fatherid | name_desc | level | connect_by_root | cpath | RUITR | array_key_1 | array_col_2 | array_col_4 | array_siblings
----+--------+----------+-----------+-------+-----------------+----------------------------+-------+--------------------+----------------------------+------------------------------------+------------------------------------
1 | 中国 | 0 | China | 1 | China | /中国 | 0 | /{1} | /中国 | /China | \x01000000
2 | 湖南省 | 1 | Hunan | 2 | China | /中国/湖南省 | 1 | /{1}/{2} | /中国/湖南省 | /China/Hunan | \x0100000001000000
11 | 长沙市 | 2 | Changsha | 3 | China | /中国/湖南省/长沙市 | 2 | /{1}/{2}/{11} | /中国/湖南省/长沙市 | /China/Hunan/Changsha | \x010000000100000002000000
13 | 衡阳市 | 2 | Hengyang | 3 | China | /中国/湖南省/衡阳市 | 2 | /{1}/{2}/{13} | /中国/湖南省/衡阳市 | /China/Hunan/Hengyang | \x010000000100000003000000
14 | 耒阳市 | 13 | Leiyang | 4 | China | /中国/湖南省/衡阳市/耒阳市 | 3 | /{1}/{2}/{13}/{14} | /中国/湖南省/衡阳市/耒阳市 | /China/Hunan/Hengyang/Leiyang | \x01000000010000000300000002000000
18 | 常宁市 | 13 | Changning | 4 | China | /中国/湖南省/衡阳市/常宁市 | 3 | /{1}/{2}/{13}/{18} | /中国/湖南省/衡阳市/常宁市 | /China/Hunan/Hengyang/Changning | \x01000000010000000300000006000000
19 | 祁东县 | 13 | Qidong | 4 | China | /中国/湖南省/衡阳市/祁东县 | 3 | /{1}/{2}/{13}/{19} | /中国/湖南省/衡阳市/祁东县 | /China/Hunan/Hengyang/Qidong | \x01000000010000000300000007000000
20 | 祁南县 | 13 | Qinan | 4 | China | /中国/湖南省/衡阳市/祁南县 | 3 | /{1}/{2}/{13}/{20} | /中国/湖南省/衡阳市/祁南县 | /China/Hunan/Hengyang/Qinan | \x01000000010000000300000008000000
21 | 祁西县 | 13 | Qixi | 4 | China | /中国/湖南省/衡阳市/祁西县 | 3 | /{1}/{2}/{13}/{21} | /中国/湖南省/衡阳市/祁西县 | /China/Hunan/Hengyang/Qixi | \x01000000010000000300000009000000
22 | 祁北县 | 13 | Qibei | 4 | China | /中国/湖南省/衡阳市/祁北县 | 3 | /{1}/{2}/{13}/{22} | /中国/湖南省/衡阳市/祁北县 | /China/Hunan/Hengyang/Qibei | \x0100000001000000030000000a000000
3 | 广东省 | 1 | Guangdong | 2 | China | /中国/广东省 | 1 | /{1}/{3} | /中国/广东省 | /China/Guangdong | \x0100000002000000
10 | 深圳市 | 3 | Shenzhen | 3 | China | /中国/广东省/深圳市 | 2 | /{1}/{3}/{10} | /中国/广东省/深圳市 | /China/Guangdong/Shenzhen | \x010000000200000001000000
12 | 南山区 | 10 | Nanshan | 4 | China | /中国/广东省/深圳市/南山区 | 3 | /{1}/{3}/{10}/{12} | /中国/广东省/深圳市/南山区 | /China/Guangdong/Shenzhen/Nanshan | \x01000000020000000100000001000000
15 | 龙岗区 | 10 | Longgang | 4 | China | /中国/广东省/深圳市/龙岗区 | 3 | /{1}/{3}/{10}/{15} | /中国/广东省/深圳市/龙岗区 | /China/Guangdong/Shenzhen/Longgang | \x01000000020000000100000003000000
16 | 福田区 | 10 | Futian | 4 | China | /中国/广东省/深圳市/福田区 | 3 | /{1}/{3}/{10}/{16} | /中国/广东省/深圳市/福田区 | /China/Guangdong/Shenzhen/Futian | \x01000000020000000100000004000000
17 | 宝安区 | 10 | Baoan | 4 | China | /中国/广东省/深圳市/宝安区 | 3 | /{1}/{3}/{10}/{17} | /中国/广东省/深圳市/宝安区 | /China/Guangdong/Shenzhen/Baoan | \x01000000020000000100000005000000
4 | 海南省 | 1 | Hainan | 2 | China | /中国/海南省 | 1 | /{1}/{4} | /中国/海南省 | /China/Hainan | \x0100000003000000
5 | 河北省 | 1 | Hebei | 2 | China | /中国/河北省 | 1 | /{1}/{5} | /中国/河北省 | /China/Hebei | \x0100000004000000
6 | 河南省 | 1 | Henan | 2 | China | /中国/河南省 | 1 | /{1}/{6} | /中国/河南省 | /China/Henan | \x0100000005000000
7 | 山东省 | 1 | Shandong | 2 | China | /中国/山东省 | 1 | /{1}/{7} | /中国/山东省 | /China/Shandong | \x0100000006000000
8 | 湖北省 | 1 | Hubei | 2 | China | /中国/湖北省 | 1 | /{1}/{8} | /中国/湖北省 | /China/Hubei | \x0100000007000000
9 | 江苏省 | 1 | Jiangsu | 2 | China | /中国/江苏省 | 1 | /{1}/{9} | /中国/江苏省 | /China/Jiangsu | \x0100000008000000
(22 rows)
reset enable_startwith_debug;
LOG: statement: reset enable_startwith_debug;
reset client_min_messages;
LOG: statement: reset client_min_messages;

2510
src/test/regress/expected/sw_bugfix.out Normal file
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File diff suppressed because it is too large Load Diff

180
src/test/regress/expected/sw_by_rownum_level.out Normal file
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@ -0,0 +1,180 @@
set client_min_messages = error;
set search_path=swtest;
SET CLIENT_ENCODING='UTF8';
--accepted cases
explain (costs off)
select * from test_area CONNECT BY LEVEL <= LENGTH('SOME TEXT');
QUERY PLAN
--------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR
-> Recursive Union
-> Seq Scan on test_area
-> Nested Loop
-> WorkTable Scan on tmp_reuslt
-> Materialize
-> Seq Scan on test_area
(10 rows)
explain (costs off)
select *, LEVEL from test_area CONNECT BY LEVEL <= LENGTH('SOME TEXT');
QUERY PLAN
--------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR
-> Recursive Union
-> Seq Scan on test_area
-> Nested Loop
-> WorkTable Scan on tmp_reuslt
-> Materialize
-> Seq Scan on test_area
(10 rows)
explain (costs off)
select * from test_area CONNECT BY ROWNUM <= LENGTH('SOME TEXT');
QUERY PLAN
--------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR
-> Recursive Union
-> Seq Scan on test_area
-> Nested Loop
-> WorkTable Scan on tmp_reuslt
-> Materialize
-> Seq Scan on test_area
(10 rows)
explain (costs off)
select *, ROWNUM from test_area CONNECT BY ROWNUM <= LENGTH('SOME TEXT');
QUERY PLAN
--------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR
-> Recursive Union
-> Seq Scan on test_area
-> Nested Loop
-> WorkTable Scan on tmp_reuslt
-> Materialize
-> Seq Scan on test_area
(10 rows)
explain (costs off)
select * from test_area CONNECT BY LEVEL < LENGTH('SOME TEXT');
QUERY PLAN
--------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR
-> Recursive Union
-> Seq Scan on test_area
-> Nested Loop
-> WorkTable Scan on tmp_reuslt
-> Materialize
-> Seq Scan on test_area
(10 rows)
explain (costs off)
select *, LEVEL from test_area CONNECT BY LEVEL < LENGTH('SOME TEXT');
QUERY PLAN
--------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR
-> Recursive Union
-> Seq Scan on test_area
-> Nested Loop
-> WorkTable Scan on tmp_reuslt
-> Materialize
-> Seq Scan on test_area
(10 rows)
explain (costs off)
select * from test_area CONNECT BY ROWNUM < LENGTH('SOME TEXT');
QUERY PLAN
--------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR
-> Recursive Union
-> Seq Scan on test_area
-> Nested Loop
-> WorkTable Scan on tmp_reuslt
-> Materialize
-> Seq Scan on test_area
(10 rows)
explain (costs off)
select *, ROWNUM from test_area CONNECT BY ROWNUM < LENGTH('SOME TEXT');
QUERY PLAN
--------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR
-> Recursive Union
-> Seq Scan on test_area
-> Nested Loop
-> WorkTable Scan on tmp_reuslt
-> Materialize
-> Seq Scan on test_area
(10 rows)
--rejected cases
explain (costs off)
select *, LEVEL from test_area CONNECT BY LEVEL > LENGTH('SOME TEXT');
QUERY PLAN
--------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR
-> Recursive Union
-> Seq Scan on test_area
-> Nested Loop
-> WorkTable Scan on tmp_reuslt
-> Materialize
-> Seq Scan on test_area
(10 rows)
explain (costs off)
select *, LEVEL from test_area CONNECT BY LEVEL >= LENGTH('SOME TEXT');
QUERY PLAN
--------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR
-> Recursive Union
-> Seq Scan on test_area
-> Nested Loop
-> WorkTable Scan on tmp_reuslt
-> Materialize
-> Seq Scan on test_area
(10 rows)
explain (costs off)
select * from test_area CONNECT BY APPLE > LENGTH('SOME TEXT');
ERROR: column "apple" does not exist
LINE 2: select * from test_area CONNECT BY APPLE > LENGTH('SOME TEXT...
^
explain (costs off)
select * from test_area CONNECT BY APPLE < LENGTH('SOME TEXT');
ERROR: column "apple" does not exist
LINE 2: select * from test_area CONNECT BY APPLE < LENGTH('SOME TEXT...
^
explain (costs off)
select * from test_area CONNECT BY APPLE <= LENGTH('SOME TEXT');
ERROR: column "apple" does not exist
LINE 2: select * from test_area CONNECT BY APPLE <= LENGTH('SOME TEX...
^

15
src/test/regress/expected/sw_clearup.out Normal file
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set current_schema=swtest;
drop table if exists swtest.test_area;
drop table if exists swtest.test_area2;
drop table if exists swtest.t1;
drop table if exists swtest.t2;
drop table if exists swtest.test_hcb_ptb;
drop table if exists swtest.test_hcb_fqb;
drop table if exists swtest.test_sublink;
drop table if exists swtest.test_hcb_ptbc;
drop table if exists swtest.test_swcb_a;
drop table if exists swtest.trait_value;
drop table if exists swtest.offers_20050701;
drop table if exists swtest.brand;
drop schema if exists swtest cascade;
NOTICE: drop cascades to view dual

553
src/test/regress/expected/sw_icbc.out Normal file
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set client_min_messages = error;
set search_path=swtest;
SET CLIENT_ENCODING='UTF8';
--signle table columns test
explain (costs off)
select * from t1 start with id = 1 connect by prior id = pid;
QUERY PLAN
-----------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union
-> Seq Scan on t1
Filter: (id = 1)
-> Hash Join
Hash Cond: (swtest.t1.pid = tmp_reuslt."t1@id")
-> Seq Scan on t1
-> Hash
-> WorkTable Scan on tmp_reuslt
(12 rows)
select * from t1 start with id = 1 connect by prior id = pid;
id | pid | name
----+-----+------
1 | 0 | 1
2 | 1 | 2
4 | 1 | 4
5 | 2 | 5
7 | 4 | 7
8 | 4 | 8
9 | 7 | 9
(7 rows)
explain (costs off)
select * from t1 start with t1.id = 1 connect by prior t1.id = t1.pid;
QUERY PLAN
-----------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union
-> Seq Scan on t1
Filter: (id = 1)
-> Hash Join
Hash Cond: (swtest.t1.pid = tmp_reuslt."t1@id")
-> Seq Scan on t1
-> Hash
-> WorkTable Scan on tmp_reuslt
(12 rows)
select * from t1 start with t1.id = 1 connect by prior t1.id = t1.pid;
id | pid | name
----+-----+------
1 | 0 | 1
2 | 1 | 2
4 | 1 | 4
5 | 2 | 5
7 | 4 | 7
8 | 4 | 8
9 | 7 | 9
(7 rows)
explain (costs off)
select * from t1 as test start with test.id = 1 connect by prior test.id = test.pid;
QUERY PLAN
--------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union
-> Seq Scan on t1 test
Filter: (id = 1)
-> Hash Join
Hash Cond: (test.pid = tmp_reuslt."test@id")
-> Seq Scan on t1 test
-> Hash
-> WorkTable Scan on tmp_reuslt
(12 rows)
select * from t1 as test start with test.id = 1 connect by prior test.id = test.pid;
id | pid | name
----+-----+------
1 | 0 | 1
2 | 1 | 2
4 | 1 | 4
5 | 2 | 5
7 | 4 | 7
8 | 4 | 8
9 | 7 | 9
(7 rows)
explain (costs off)
select * from t1 start with id = 1 connect by prior id = pid order by id desc;
QUERY PLAN
-----------------------------------------------------------------------
Sort
Sort Key: tmp_reuslt."t1@id" DESC
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union
-> Seq Scan on t1
Filter: (id = 1)
-> Hash Join
Hash Cond: (swtest.t1.pid = tmp_reuslt."t1@id")
-> Seq Scan on t1
-> Hash
-> WorkTable Scan on tmp_reuslt
-> CTE Scan on tmp_reuslt
(14 rows)
select * from t1 start with id = 1 connect by prior id = pid order by id desc;
id | pid | name
----+-----+------
9 | 7 | 9
8 | 4 | 8
7 | 4 | 7
5 | 2 | 5
4 | 1 | 4
2 | 1 | 2
1 | 0 | 1
(7 rows)
explain (costs off)
select * from t1 start with id IN (select id from t2 where id = 1) connect by prior id = pid order by id desc;
QUERY PLAN
-----------------------------------------------------------------------
Sort
Sort Key: tmp_reuslt."t1@id" DESC
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union
-> Nested Loop Semi Join
-> Seq Scan on t1
Filter: (id = 1)
-> Seq Scan on t2
Filter: (id = 1)
-> Hash Join
Hash Cond: (swtest.t1.pid = tmp_reuslt."t1@id")
-> Seq Scan on t1
-> Hash
-> WorkTable Scan on tmp_reuslt
-> CTE Scan on tmp_reuslt
(17 rows)
select * from t1 start with id IN (select id from t2 where id = 1) connect by prior id = pid order by id desc;
id | pid | name
----+-----+------
9 | 7 | 9
8 | 4 | 8
7 | 4 | 7
5 | 2 | 5
4 | 1 | 4
2 | 1 | 2
1 | 0 | 1
(7 rows)
explain (costs off) select t1.id, t1.pid, t1.name from t1 start with id = 1 connect by prior id = pid;
QUERY PLAN
-----------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union
-> Seq Scan on t1
Filter: (id = 1)
-> Hash Join
Hash Cond: (swtest.t1.pid = tmp_reuslt."t1@id")
-> Seq Scan on t1
-> Hash
-> WorkTable Scan on tmp_reuslt
(12 rows)
select t1.id, t1.pid, t1.name from t1 start with id = 1 connect by prior id = pid;
id | pid | name
----+-----+------
1 | 0 | 1
2 | 1 | 2
4 | 1 | 4
5 | 2 | 5
7 | 4 | 7
8 | 4 | 8
9 | 7 | 9
(7 rows)
explain (costs off) select sum(name) from t1 start with id = 1 connect by prior id = pid group by id, pid;
QUERY PLAN
-----------------------------------------------------------------------
HashAggregate
Group By Key: tmp_reuslt."t1@id", tmp_reuslt."t1@pid"
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union
-> Seq Scan on t1
Filter: (id = 1)
-> Hash Join
Hash Cond: (swtest.t1.pid = tmp_reuslt."t1@id")
-> Seq Scan on t1
-> Hash
-> WorkTable Scan on tmp_reuslt
-> CTE Scan on tmp_reuslt
(14 rows)
select sum(name) from t1 start with id = 1 connect by prior id = pid group by id, pid;
sum
-----
7
4
1
9
2
5
8
(7 rows)
explain (costs off) select * from t1 start with id = 1 connect by prior id = pid and id IN (select id from t2);
QUERY PLAN
-----------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union
-> Seq Scan on t1
Filter: (id = 1)
-> Hash Semi Join
Hash Cond: (swtest.t1.id = t2.id)
-> Hash Join
Hash Cond: (swtest.t1.pid = tmp_reuslt."t1@id")
-> Seq Scan on t1
-> Hash
-> WorkTable Scan on tmp_reuslt
-> Hash
-> Seq Scan on t2
(16 rows)
select * from t1 start with id = 1 connect by prior id = pid and id IN (select id from t2);
id | pid | name
----+-----+------
1 | 0 | 1
2 | 1 | 2
4 | 1 | 4
5 | 2 | 5
7 | 4 | 7
8 | 4 | 8
9 | 7 | 9
(7 rows)
explain (costs off) select * from t1 start with id = 1 and id is not NULL connect by prior id = pid;
QUERY PLAN
-----------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union
-> Seq Scan on t1
Filter: ((id IS NOT NULL) AND (id = 1))
-> Hash Join
Hash Cond: (swtest.t1.pid = tmp_reuslt."t1@id")
-> Seq Scan on t1
-> Hash
-> WorkTable Scan on tmp_reuslt
(12 rows)
select * from t1 start with id = 1 and id is not NULL connect by prior id = pid;
id | pid | name
----+-----+------
1 | 0 | 1
2 | 1 | 2
4 | 1 | 4
5 | 2 | 5
7 | 4 | 7
8 | 4 | 8
9 | 7 | 9
(7 rows)
explain (costs off)
select *
from
(select t1.id id, t1.pid pid, t1.name name from t1
union
select t1.id id, t1.pid pid, t1.name name from t1) as test
start with test.id = 1
connect by prior test.id = test.pid;
QUERY PLAN
---------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union
-> Unique
-> Sort
Sort Key: swtest.t1.id, swtest.t1.pid, swtest.t1.name
-> Append
-> Seq Scan on t1
Filter: (id = 1)
-> Seq Scan on t1
Filter: (id = 1)
-> Hash Join
Hash Cond: (tmp_reuslt."test@id" = swtest.t1.pid)
-> WorkTable Scan on tmp_reuslt
-> Hash
-> HashAggregate
Group By Key: swtest.t1.id, swtest.t1.pid, swtest.t1.name
-> Append
-> Seq Scan on t1
-> Seq Scan on t1
(22 rows)
select *
from
(select t1.id id, t1.pid pid, t1.name name from t1
union
select t1.id id, t1.pid pid, t1.name name from t1) as test
start with test.id = 1
connect by prior test.id = test.pid;
id | pid | name
----+-----+------
1 | 0 | 1
2 | 1 | 2
4 | 1 | 4
5 | 2 | 5
7 | 4 | 7
8 | 4 | 8
9 | 7 | 9
(7 rows)
explain (costs off)
select *
from
(select *
from(select t1.id id, t1.pid pid, t1.name name from t1
union
select t1.id id, t1.pid pid, t1.name name from t1) as test
start with test.id = 1
connect by prior test.id = test.pid) as tt
CONNECT BY PRIOR tt.id = tt.pid
START WITH tt.id = 1;
QUERY PLAN
-----------------------------------------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union
-> CTE Scan on tmp_reuslt
Filter: ("test@id" = 1)
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union
-> Unique
-> Sort
Sort Key: swtest.t1.id, swtest.t1.pid, swtest.t1.name
-> Append
-> Seq Scan on t1
Filter: (id = 1)
-> Seq Scan on t1
Filter: (id = 1)
-> Hash Join
Hash Cond: (tmp_reuslt."test@id" = swtest.t1.pid)
-> WorkTable Scan on tmp_reuslt
-> Hash
-> HashAggregate
Group By Key: swtest.t1.id, swtest.t1.pid, swtest.t1.name
-> Append
-> Seq Scan on t1
-> Seq Scan on t1
-> Hash Join
Hash Cond: (tmp_reuslt."test@pid" = tmp_reuslt."tt@id")
-> Materialize
-> CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union
-> Unique
-> Sort
Sort Key: swtest.t1.id, swtest.t1.pid, swtest.t1.name
-> Append
-> Seq Scan on t1
Filter: (id = 1)
-> Seq Scan on t1
Filter: (id = 1)
-> Hash Join
Hash Cond: (tmp_reuslt."test@id" = swtest.t1.pid)
-> WorkTable Scan on tmp_reuslt
-> Hash
-> HashAggregate
Group By Key: swtest.t1.id, swtest.t1.pid, swtest.t1.name
-> Append
-> Seq Scan on t1
-> Seq Scan on t1
-> Hash
-> WorkTable Scan on tmp_reuslt
(55 rows)
select *
from
(select *
from(select t1.id id, t1.pid pid, t1.name name from t1
union
select t1.id id, t1.pid pid, t1.name name from t1) as test
start with test.id = 1
connect by prior test.id = test.pid) as tt
CONNECT BY PRIOR tt.id = tt.pid
START WITH tt.id = 1;
id | pid | name
----+-----+------
1 | 0 | 1
2 | 1 | 2
4 | 1 | 4
5 | 2 | 5
7 | 4 | 7
8 | 4 | 8
9 | 7 | 9
(7 rows)
--test correlated sublink in targetlist
explain select b.id, (select count(a.id) from t1 a where a.pid = b.id) c from t1 b
start with b.id=1 connect by prior b.id = b.pid;
QUERY PLAN
-------------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt (cost=18.22..122.64 rows=91 width=4)
CTE tmp_reuslt
-> StartWith Operator (cost=0.00..18.22 rows=91 width=10)
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union (cost=0.00..18.22 rows=91 width=10)
-> Seq Scan on t1 b (cost=0.00..1.11 rows=1 width=10)
Filter: (id = 1)
-> Hash Join (cost=0.33..1.53 rows=9 width=10)
Hash Cond: (b.pid = tmp_reuslt."b@id")
-> Seq Scan on t1 b (cost=0.00..1.09 rows=9 width=10)
-> Hash (cost=0.20..0.20 rows=10 width=4)
-> WorkTable Scan on tmp_reuslt (cost=0.00..0.20 rows=10 width=4)
SubPlan 2
-> Aggregate (cost=1.12..1.13 rows=1 width=12)
-> Seq Scan on t1 a (cost=0.00..1.11 rows=2 width=4)
Filter: (pid = tmp_reuslt."b@id")
(16 rows)
explain select * from t1 as test
where not exists (select 1 from t1 where test.id = t1.id)
start with test.id = 1 connect by prior test.id = test.pid;
QUERY PLAN
-------------------------------------------------------------------------------------------------
Hash Anti Join (cost=19.42..22.29 rows=82 width=40)
Hash Cond: (tmp_reuslt."test@id" = t1.id)
CTE tmp_reuslt
-> StartWith Operator (cost=0.00..18.22 rows=91 width=10)
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union (cost=0.00..18.22 rows=91 width=10)
-> Seq Scan on t1 test (cost=0.00..1.11 rows=1 width=10)
Filter: (id = 1)
-> Hash Join (cost=0.33..1.53 rows=9 width=10)
Hash Cond: (test.pid = tmp_reuslt."test@id")
-> Seq Scan on t1 test (cost=0.00..1.09 rows=9 width=10)
-> Hash (cost=0.20..0.20 rows=10 width=4)
-> WorkTable Scan on tmp_reuslt (cost=0.00..0.20 rows=10 width=4)
-> CTE Scan on tmp_reuslt (cost=0.00..1.82 rows=91 width=40)
-> Hash (cost=1.09..1.09 rows=9 width=4)
-> Seq Scan on t1 (cost=0.00..1.09 rows=9 width=4)
(16 rows)
--multiple tables case
explain (costs off) select * from t1, t2 where t1.id = t2.id start with t1.id = t2.id and t1.id = 1 connect by prior t1.id = t1.pid;
QUERY PLAN
-----------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union
-> Nested Loop
-> Seq Scan on t1
Filter: (id = 1)
-> Seq Scan on t2
Filter: (id = 1)
-> Hash Join
Hash Cond: (swtest.t1.id = swtest.t2.id)
-> Hash Join
Hash Cond: (swtest.t1.pid = tmp_reuslt."t1@id")
-> Seq Scan on t1
-> Hash
-> WorkTable Scan on tmp_reuslt
-> Hash
-> Seq Scan on t2
(19 rows)
explain (costs off) select * from t1 join t2 on t1.id = t2.id start with t1.id = t2.id and t1.id = 1 connect by prior t1.id = t1.pid;
QUERY PLAN
-----------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union
-> Nested Loop
-> Seq Scan on t1
Filter: (id = 1)
-> Seq Scan on t2
Filter: (id = 1)
-> Hash Join
Hash Cond: (swtest.t1.id = swtest.t2.id)
-> Hash Join
Hash Cond: (swtest.t1.pid = tmp_reuslt."t1@id")
-> Seq Scan on t1
-> Hash
-> WorkTable Scan on tmp_reuslt
-> Hash
-> Seq Scan on t2
(19 rows)
explain (costs off) select * from t1, (select * from t2) as test where t1.id = test.id start with t1.id = test.id and t1.id = 1 connect by prior t1.id = t1.pid;
QUERY PLAN
-----------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1
-> Recursive Union
-> Nested Loop
-> Seq Scan on t1
Filter: (id = 1)
-> Seq Scan on t2
Filter: (id = 1)
-> Hash Join
Hash Cond: (swtest.t1.id = swtest.t2.id)
-> Hash Join
Hash Cond: (swtest.t1.pid = tmp_reuslt."t1@id")
-> Seq Scan on t1
-> Hash
-> WorkTable Scan on tmp_reuslt
-> Hash
-> Seq Scan on t2
(19 rows)
explain (costs off) select id, (select id from t2 start with t2.id = t1.id connect by t2.id = t1.id limit 1) from t1 where id = 1;
ERROR: START WITH CONNECT BY clauses must have at least one prior key.
--unsupport case
select prior id cc from t1 start with id = 1 connect by prior id = pid;
ERROR: Not Support prior column in TargetList in case swcb.
create INCREMENTAL MATERIALIZED view mv as select * from t1 start with id=141 connect by prior id=pid;
ERROR: Feature not supported
DETAIL: with or start with clause

229
src/test/regress/expected/sw_prepare.out Normal file
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drop schema if exists swtest cascade;
NOTICE: schema "swtest" does not exist, skipping
create schema swtest;
set current_schema=swtest;
drop table if exists swtest.test_area;
NOTICE: table "test_area" does not exist, skipping
drop table if exists swtest.test_area2;
NOTICE: table "test_area2" does not exist, skipping
drop table if exists swtest.t1;
NOTICE: table "t1" does not exist, skipping
drop table if exists swtest.t2;
NOTICE: table "t2" does not exist, skipping
drop table if exists swtest.test_hcb_ptb;
NOTICE: table "test_hcb_ptb" does not exist, skipping
drop table if exists swtest.test_hcb_fqb;
NOTICE: table "test_hcb_fqb" does not exist, skipping
drop table if exists swtest.test_sublink;
NOTICE: table "test_sublink" does not exist, skipping
drop table if exists swtest.test_hcb_ptbc;
NOTICE: table "test_hcb_ptbc" does not exist, skipping
drop table if exists swtest.test_swcb_a;
NOTICE: table "test_swcb_a" does not exist, skipping
drop table if exists swtest.trait_value;
NOTICE: table "trait_value" does not exist, skipping
drop table if exists swtest.offers_20050701;
NOTICE: table "offers_20050701" does not exist, skipping
drop table if exists swtest.brand;
NOTICE: table "brand" does not exist, skipping
create table swtest.test_area(id int4,name text, fatherid int4, name_desc text);
insert into swtest.test_area values (1, '中国', 0, 'China');
insert into swtest.test_area values (2, '湖南省',1 , 'Hunan');
insert into swtest.test_area values (3, '广东省',1 , 'Guangdong');
insert into swtest.test_area values (4, '海南省',1 , 'Hainan');
insert into swtest.test_area values (5, '河北省',1 , 'Hebei');
insert into swtest.test_area values (6, '河南省',1 , 'Henan');
insert into swtest.test_area values (7, '山东省',1 , 'Shandong');
insert into swtest.test_area values (8, '湖北省',1 , 'Hubei');
insert into swtest.test_area values (9, '江苏省',1 , 'Jiangsu');
insert into swtest.test_area values (10,'深圳市',3 , 'Shenzhen');
insert into swtest.test_area values (11,'长沙市',2 , 'Changsha');
insert into swtest.test_area values (22,'祁北县',13, 'Qibei');
insert into swtest.test_area values (12,'南山区',10, 'Nanshan');
insert into swtest.test_area values (21,'祁西县',13, 'Qixi');
insert into swtest.test_area values (13,'衡阳市',2 , 'Hengyang');
insert into swtest.test_area values (14,'耒阳市',13, 'Leiyang');
insert into swtest.test_area values (15,'龙岗区',10, 'Longgang');
insert into swtest.test_area values (16,'福田区',10, 'Futian');
insert into swtest.test_area values (17,'宝安区',10, 'Baoan');
insert into swtest.test_area values (19,'祁东县',13, 'Qidong');
insert into swtest.test_area values (18,'常宁市',13, 'Changning');
insert into swtest.test_area values (20,'祁南县',13, 'Qinan');
create table swtest.test_area2(id int4, id2 text, name text, fatherid int4, fatherid2 text, name_desc text);
insert into swtest.test_area2 values (1, 'A', '中国', 0, '', 'China');
insert into swtest.test_area2 values (2, 'B', '湖南省',1 , 'A', 'Hunan');
insert into swtest.test_area2 values (3, 'C', '广东省',1 , 'A', 'Guangdong');
insert into swtest.test_area2 values (4, 'D', '海南省',1 , 'A', 'Hainan');
insert into swtest.test_area2 values (5, 'E', '河北省',1 , 'A', 'Hebei');
insert into swtest.test_area2 values (6, 'F', '河南省',1 , 'A', 'Henan');
insert into swtest.test_area2 values (7, 'G', '山东省',1 , 'A', 'Shandong');
insert into swtest.test_area2 values (8, 'H', '湖北省',1 , 'A', 'Hubei');
insert into swtest.test_area2 values (9, 'I', '江苏省',1 , 'A', 'Jiangsu');
insert into swtest.test_area2 values (10, 'J', '深圳市',3 , 'C', 'Shenzhen');
insert into swtest.test_area2 values (11, 'K', '长沙市',2 , 'B', 'Changsha');
insert into swtest.test_area2 values (22, 'L', '祁北县',13, 'O', 'Qibei');
insert into swtest.test_area2 values (12, 'M', '南山区',10, 'J', 'Nanshan');
insert into swtest.test_area2 values (21, 'N', '祁西县',13, 'O', 'Qixi');
insert into swtest.test_area2 values (13, 'O', '衡阳市',2 , 'B', 'Hengyang');
insert into swtest.test_area2 values (14, 'P', '耒阳市',13, 'O', 'Leiyang');
insert into swtest.test_area2 values (15, 'Q', '龙岗区',10, 'J', 'Longgang');
insert into swtest.test_area2 values (16, 'R', '福田区',10, 'J', 'Futian');
insert into swtest.test_area2 values (17, 'S', '宝安区',10, 'J', 'Baoan');
insert into swtest.test_area2 values (19, 'T', '祁东县',13, 'O', 'Qidong');
insert into swtest.test_area2 values (18, 'U', '常宁市',13, 'O', 'Changning');
insert into swtest.test_area2 values (20, 'V', '祁南县',13, 'O', 'Qinan');
create table swtest.t1(id int, pid int, name text);
insert into swtest.t1 values(1, 0, '1');
insert into swtest.t1 values(2, 1, '2');
insert into swtest.t1 values(3, 0, '3');
insert into swtest.t1 values(4, 1, '4');
insert into swtest.t1 values(5, 2, '5');
insert into swtest.t1 values(6, 3, '6');
insert into swtest.t1 values(7, 4, '7');
insert into swtest.t1 values(8, 4, '8');
insert into swtest.t1 values(9, 7, '9');
create table swtest.t2(id int, pid int, name text);
insert into swtest.t2 values(1, 0, '1');
insert into swtest.t2 values(2, 1, '2');
insert into swtest.t2 values(3, 0, '3');
insert into swtest.t2 values(4, 1, '4');
insert into swtest.t2 values(5, 2, '5');
insert into swtest.t2 values(6, 3, '6');
insert into swtest.t2 values(7, 4, '7');
insert into swtest.t2 values(8, 4, '8');
insert into swtest.t2 values(9, 7, '9');
CREATE TABLE swtest.test_hcb_ptb(ID INT,CHA CHAR(10),VCH VARCHAR2(10),TEX TEXT,DAT DATE,TIM TIME,TIS TIMESTAMP,NAME VARCHAR2(80),PID INT,PCHA CHAR(10),PVCH VARCHAR2(10),PTEX TEXT,PDAT DATE,PTIM TIME,PTIS TIMESTAMP);
CREATE TABLE swtest.TEST_HCB_FQB(ID INT,CHA CHAR(10),VCH VARCHAR2(10),TEX TEXT,DAT DATE,TIM TIME,TIS TIMESTAMP,NAME VARCHAR2(80),PID INT,PCHA CHAR(10),PVCH VARCHAR2(10),PTEX TEXT,PDAT DATE,PTIM TIME,PTIS TIMESTAMP);
CREATE TABLE swtest.TEST_SUBLINK(ID INT,VCH VARCHAR2(10));
INSERT INTO swtest.TEST_HCB_FQB VALUES( 1 , 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12' ,'中国' , 0, '0' , '0' , '0' , '2000-12-12 12:12:12', '00:00:01', '2000-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 11 , 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01' ,'江苏省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 12 , 'ab' , 'ab' , 'ab' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01' ,'山东省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 13 , 'ac' , 'ac' , 'ac' , '2021-01-01 01:01:02', '01:01:02', '2021-01-01 01:01:02' ,'安徽省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 14 , 'ad' , 'ad' , 'ad' , '2021-01-01 01:01:03', '01:01:03', '2021-01-01 01:01:03' ,'河南省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 15 , 'ae' , 'ae' , 'ae' , '2021-01-01 01:01:05', '01:01:05', '2021-01-01 01:01:05' ,'河北省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 16 , 'af' , 'af' , 'af' , '2021-01-01 01:01:06', '01:01:06', '2021-01-01 01:01:06' ,'湖南省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 17 , 'ag' , 'ag' , 'ag' , '2021-01-01 01:01:07', '01:01:07', '2021-01-01 01:01:07' ,'湖北省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 18 , 'ah' , 'ah' , 'ah' , '2021-01-01 01:01:08', '01:01:08', '2021-01-01 01:01:08' ,'贵州省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 19 , 'ai' , 'ai' , 'ai' , '2021-01-01 01:01:09', '01:01:09', '2021-01-01 01:01:09' ,'武汉省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES(111 , 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10' ,'南京市', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(112 , 'aab', 'aab', 'aab', '2021-01-01 01:01:11', '01:01:11', '2021-01-01 01:01:11' ,'宿迁市', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(113 , 'aac', 'aac', 'aac', '2021-01-01 01:01:12', '01:01:12', '2021-01-01 01:01:12' ,'徐州市', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(114 , 'aad', 'aad', 'aad', '2021-01-01 01:01:13', '01:01:13', '2021-01-01 01:01:13' ,'苏州市', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(115 , 'aae', 'aae', 'aae', '2021-01-01 01:01:14', '01:01:14', '2021-01-01 01:01:14' ,'盐城市', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(116 , 'aaf', 'aaf', 'aaf', '2021-01-01 01:01:15', '01:01:15', '2021-01-01 01:01:15' ,'无锡市', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(117 , 'aag', 'aag', 'aag', '2021-01-01 01:01:16', '01:01:16', '2021-01-01 01:01:16' ,'常州市', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(118 , 'aah', 'aah', 'aah', '2021-01-01 01:01:17', '01:01:17', '2021-01-01 01:01:17' ,'连云港', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(119 , 'aai', 'aai', 'aai', '2021-01-01 01:01:18', '01:01:18', '2021-01-01 01:01:18' ,'泰州市', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(121 , 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20' ,'江宁区', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(122 , 'abb', 'abb', 'abb', '2021-01-01 01:01:21', '01:01:21', '2021-01-01 01:01:21' ,'雨花台', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(123 , 'abc', 'abc', 'abc', '2021-01-01 01:01:22', '01:01:22', '2021-01-01 01:01:22' ,'鼓楼区', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(124 , 'abd', 'abd', 'abd', '2021-01-01 01:01:23', '01:01:23', '2021-01-01 01:01:23' ,'玄武区', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(125 , 'abe', 'abe', 'abe', '2021-01-01 01:01:24', '01:01:24', '2021-01-01 01:01:24' ,'建邺区', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(126 , 'abf', 'abf', 'abf', '2021-01-01 01:01:25', '01:01:25', '2021-01-01 01:01:25' ,'秦淮区', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(127 , 'abg', 'abg', 'abg', '2021-01-01 01:01:26', '01:01:26', '2021-01-01 01:01:26' ,'浦口区', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(128 , 'abh', 'abh', 'abh', '2021-01-01 01:01:27', '01:01:27', '2021-01-01 01:01:27' ,'浦口区', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(129 , 'abi', 'abi', 'abi', '2021-01-01 01:01:28', '01:01:28', '2021-01-01 01:01:28' ,'六合区', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(131 , 'aca', 'aca', 'aca', '2021-01-01 01:01:30', '01:01:30', '2021-01-01 01:01:30' ,'东山街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
INSERT INTO swtest.TEST_HCB_FQB VALUES(132 , 'acb', 'acb', 'acb', '2021-01-01 01:01:31', '01:01:31', '2021-01-01 01:01:31' ,'秣陵街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
INSERT INTO swtest.TEST_HCB_FQB VALUES(133 , 'acc', 'acc', 'acc', '2021-01-01 01:01:32', '01:01:32', '2021-01-01 01:01:32' ,'汤山街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
INSERT INTO swtest.TEST_HCB_FQB VALUES(134 , 'acd', 'acd', 'acd', '2021-01-01 01:01:33', '01:01:33', '2021-01-01 01:01:33' ,'淳化街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
INSERT INTO swtest.TEST_HCB_FQB VALUES(135 , 'ace', 'ace', 'ace', '2021-01-01 01:01:34', '01:01:34', '2021-01-01 01:01:34' ,'禄口街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
INSERT INTO swtest.TEST_HCB_FQB VALUES(136 , 'acf', 'acf', 'acf', '2021-01-01 01:01:35', '01:01:35', '2021-01-01 01:01:35' ,'江宁街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
INSERT INTO swtest.TEST_HCB_FQB VALUES(137 , 'acg', 'acg', 'acg', '2021-01-01 01:01:36', '01:01:36', '2021-01-01 01:01:36' ,'谷里街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
INSERT INTO swtest.TEST_HCB_FQB VALUES(138 , 'ach', 'ach', 'ach', '2021-01-01 01:01:37', '01:01:37', '2021-01-01 01:01:37' ,'湖熟街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
INSERT INTO swtest.TEST_HCB_FQB VALUES(139 , 'aci', 'aci', 'aci', '2021-01-01 01:01:38', '01:01:38', '2021-01-01 01:01:38' ,'横溪街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
insert into swtest.test_hcb_ptb values( 1,'a',' a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12','中国', 0,'0','0','0','2000-12-12 12:12:12','00:00:01','2000-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 11,'aa',' aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01','江苏省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 12,'ab',' ab','ab','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01','山东省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 13,'ac',' ac','ac','2021-01-01 01:01:02','01:01:02','2021-01-01 01:01:02','安徽省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 14,'ad',' ad','ad','2021-01-01 01:01:03','01:01:03','2021-01-01 01:01:03','河南省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 15,'ae',' ae','ae','2021-01-01 01:01:05','01:01:05','2021-01-01 01:01:05','河北省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 16,'af',' af','af','2021-01-01 01:01:06','01:01:06','2021-01-01 01:01:06','湖南省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 17,'ag',' ag','ag','2021-01-01 01:01:07','01:01:07','2021-01-01 01:01:07','湖北省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 18,'ah',' ah','ah','2021-01-01 01:01:08','01:01:08','2021-01-01 01:01:08','贵州省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 19,'ai',' ai','ai','2021-01-01 01:01:09','01:01:09','2021-01-01 01:01:09','武汉省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values(111,'aaa',' aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10','南京市', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(112,'aab',' aab','aab','2021-01-01 01:01:11','01:01:11','2021-01-01 01:01:11','宿迁市', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(113,'aac',' aac','aac','2021-01-01 01:01:12','01:01:12','2021-01-01 01:01:12','徐州市', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(114,'aad',' aad','aad','2021-01-01 01:01:13','01:01:13','2021-01-01 01:01:13','苏州市', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(115,'aae',' aae','aae','2021-01-01 01:01:14','01:01:14','2021-01-01 01:01:14','盐城市', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(117,'aag',' aag','aag','2021-01-01 01:01:16','01:01:16','2021-01-01 01:01:16','常州市', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(116,'aaf',' aaf','aaf','2021-01-01 01:01:15','01:01:15','2021-01-01 01:01:15','无锡市', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(118,'aah',' aah','aah','2021-01-01 01:01:17','01:01:17','2021-01-01 01:01:17','连云港', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(119,'aai',' aai','aai','2021-01-01 01:01:18','01:01:18','2021-01-01 01:01:18','泰州市', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(121,'aba',' aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20','江宁区', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(122,'abb',' abb','abb','2021-01-01 01:01:21','01:01:21','2021-01-01 01:01:21','雨花台', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(123,'abc',' abc','abc','2021-01-01 01:01:22','01:01:22','2021-01-01 01:01:22','鼓楼区', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(124,'abd',' abd','abd','2021-01-01 01:01:23','01:01:23','2021-01-01 01:01:23','玄武区', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(125,'abe',' abe','abe','2021-01-01 01:01:24','01:01:24','2021-01-01 01:01:24','建邺区', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(126,'abf',' abf','abf','2021-01-01 01:01:25','01:01:25','2021-01-01 01:01:25','秦淮区', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(127,'abg',' abg','abg','2021-01-01 01:01:26','01:01:26','2021-01-01 01:01:26','浦口区', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(128,'abh',' abh','abh','2021-01-01 01:01:27','01:01:27','2021-01-01 01:01:27','浦口区', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(129,'abi',' abi','abi','2021-01-01 01:01:28','01:01:28','2021-01-01 01:01:28','六合区', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(131,'aca',' aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30','东山街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(132,'acb',' acb','acb','2021-01-01 01:01:31','01:01:31','2021-01-01 01:01:31','秣陵街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(133,'acc',' acc','acc','2021-01-01 01:01:32','01:01:32','2021-01-01 01:01:32','汤山街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(135,'ace',' ace','ace','2021-01-01 01:01:34','01:01:34','2021-01-01 01:01:34','禄口街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(134,'acd',' acd','acd','2021-01-01 01:01:33','01:01:33','2021-01-01 01:01:33','淳化街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(136,'acf',' acf','acf','2021-01-01 01:01:35','01:01:35','2021-01-01 01:01:35','江宁街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(137,'acg',' acg','acg','2021-01-01 01:01:36','01:01:36','2021-01-01 01:01:36','谷里街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(138,'ach',' ach','ach','2021-01-01 01:01:37','01:01:37','2021-01-01 01:01:37','湖熟街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(139,'aci',' aci','aci','2021-01-01 01:01:38','01:01:38','2021-01-01 01:01:38','横溪街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(141,'ada',' ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40','江南摩卡', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(142,'adb',' adb','adb','2021-01-01 01:01:41','01:01:41','2021-01-01 01:01:41','四季云顶', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(143,'adc',' adc','adc','2021-01-01 01:01:42','01:01:42','2021-01-01 01:01:42','盛世江南', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(144,'add',' add','add','2021-01-01 01:01:43','01:01:43','2021-01-01 01:01:43','七里香都', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(145,'ade',' ade','ade','2021-01-01 01:01:44','01:01:44','2021-01-01 01:01:44','西山枫林', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(146,'adf',' adf','adf','2021-01-01 01:01:45','01:01:45','2021-01-01 01:01:45','醉墨小镇', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(147,'adg',' adg','adg','2021-01-01 01:01:46','01:01:46','2021-01-01 01:01:46','布拉格调', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(148,'adh',' adh','adh','2021-01-01 01:01:47','01:01:47','2021-01-01 01:01:47','清幽别院', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(149,'adi',' adi','adi','2021-01-01 01:01:48','01:01:48','2021-01-01 01:01:48','璀璨天城', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(151,'aea',' aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50','江南一楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(152,'aeb',' aeb','aeb','2021-01-01 01:01:51','01:01:51','2021-01-01 01:01:51','江南二楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(153,'aec',' aec','aec','2021-01-01 01:01:52','01:01:52','2021-01-01 01:01:52','江南三楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(154,'aed',' aed','aed','2021-01-01 01:01:53','01:01:53','2021-01-01 01:01:53','江南四楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(155,'aee',' aee','aee','2021-01-01 01:01:54','01:01:54','2021-01-01 01:01:54','江南五楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(156,'aef',' aef','aef','2021-01-01 01:01:55','01:01:55','2021-01-01 01:01:55','江南六楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(157,'aeg',' aeg','aeg','2021-01-01 01:01:56','01:01:56','2021-01-01 01:01:56','江南七楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(158,'aeh',' aeh','aeh','2021-01-01 01:01:57','01:01:57','2021-01-01 01:01:57','江南八楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(159,'aei',' aei','aei','2021-01-01 01:01:58','01:01:58','2021-01-01 01:01:58','江南九楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(161,'afa',' afa','afa','2021-01-01 01:02:50','01:02:50','2021-01-01 01:02:50','第一单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
insert into swtest.test_hcb_ptb values(162,'afb',' afb','afb','2021-01-01 01:02:51','01:02:51','2021-01-01 01:02:51','第二单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
insert into swtest.test_hcb_ptb values(163,'afc',' afc','afc','2021-01-01 01:02:52','01:02:52','2021-01-01 01:02:52','第三单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
insert into swtest.test_hcb_ptb values(164,'afd',' afd','afd','2021-01-01 01:02:53','01:02:53','2021-01-01 01:02:53','第四单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
insert into swtest.test_hcb_ptb values(165,'afe',' afe','afe','2021-01-01 01:02:54','01:02:54','2021-01-01 01:02:54','第五单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
insert into swtest.test_hcb_ptb values(166,'aff',' aff','aff','2021-01-01 01:02:55','01:02:55','2021-01-01 01:02:55','第六单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
insert into swtest.test_hcb_ptb values(167,'afg',' afg','afg','2021-01-01 01:02:56','01:02:56','2021-01-01 01:02:56','第七单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
insert into swtest.test_hcb_ptb values(168,'afh',' afh','afh','2021-01-01 01:02:57','01:02:57','2021-01-01 01:02:57','第八单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
insert into swtest.test_hcb_ptb values(169,'afi',' afi','afi','2021-01-01 01:02:58','01:02:58','2021-01-01 01:02:58','第九单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
CREATE TABLE swtest.test_hcb_ptbc(ID INT,CHA CHAR(10),VCH VARCHAR2(10),TEX TEXT,DAT DATE,TIM TIME,TIS TIMESTAMP,NAME VARCHAR2(80),PID INT,PCHA CHAR(10),PVCH VARCHAR2(10),PTEX TEXT,PDAT DATE,PTIM TIME,PTIS TIMESTAMP
) with (orientation = column);
insert into test_hcb_ptbc select * from test_hcb_ptb;
CREATE TABLE swtest.test_swcb_a (ID varchar2(10) PRIMARY KEY,NAME varchar2(100),PID varchar2(10));
NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index "test_swcb_a_pkey" for table "test_swcb_a"
INSERT INTO swtest.test_swcb_a VALUES ('00001', '中国', '-1');
INSERT INTO swtest.test_swcb_a VALUES ('00011', '陕西', '00001');
INSERT INTO swtest.test_swcb_a VALUES ('00012', '贵州', '00001');
INSERT INTO swtest.test_swcb_a VALUES ('00013', '河南', '00001');
INSERT INTO swtest.test_swcb_a VALUES ('00111', '西安', '00011');
INSERT INTO swtest.test_swcb_a VALUES ('00112', '咸阳', '00011');
INSERT INTO swtest.test_swcb_a VALUES ('00113', '延安', '00011');
INSERT INTO swtest.test_swcb_a VALUES ('00114', '华县', '00013');
INSERT INTO swtest.test_swcb_a VALUES ('00115', '河内', '00016');
INSERT INTO swtest.test_swcb_a VALUES ('00116', '清迈', '00015');
INSERT INTO swtest.test_swcb_a VALUES ('00117', '仰光', '00017');
INSERT INTO swtest.test_swcb_a VALUES ('00118', '纽约', '00120');
INSERT INTO swtest.test_swcb_a VALUES ('00119', '费城', '00118');
INSERT INTO swtest.test_swcb_a VALUES ('00120', '华盛顿', '00119');
create table swtest.trait_value(TRAIT_VALUE_CD VARCHAR(50)primary key, TRAIT_VALUE_DESC VARCHAR(250) NULL, TRAIT_VAL VARCHAR(100) NULL, UOM_CD VARCHAR(50) NULL, TRAIT_CD VARCHAR(50) NULL,c1 serial);
NOTICE: CREATE TABLE will create implicit sequence "trait_value_c1_seq" for serial column "trait_value.c1"
NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index "trait_value_pkey" for table "trait_value"
INSERT INTO swtest.TRAIT_VALUE VALUES ('A', NULL, 'A' , 'A' , 'A');
INSERT INTO swtest.TRAIT_VALUE VALUES ('B', 'B' , NULL, 'B' , 'B');
INSERT INTO swtest.TRAIT_VALUE VALUES ('C', 'C' , 'C' , NULL, NULL);
INSERT INTO swtest.TRAIT_VALUE VALUES ('D', NULL, NULL, NULL, 'D');
INSERT INTO swtest.TRAIT_VALUE VALUES ('E', 'E' , ' AA' , 'E' , 'E');
INSERT INTO swtest.TRAIT_VALUE VALUES ('F', ' ' , 'AA ' , 'F' , 'F');
create table swtest.offers_20050701(PROMO_ID VARCHAR(10), PARTY_ID VARCHAR(10) NULL, LOCATION_ID number(17,0) NULL);
create table swtest.brand(a int default 2, mfg varchar(500), brand_cd varchar(500), brand_name varchar(100), brand_party_id number(18,10) NULL);
analyze;

498
src/test/regress/expected/sw_siblings.out Normal file
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@ -0,0 +1,498 @@
set client_min_messages = error;
set search_path=swtest;
SET CLIENT_ENCODING='UTF8';
/*
*
* START WITH .... CONNECT BY基础测试用例
*
* 测试用例表数
* openGauss=# select * from swtest.test_area;
* id | name | fatherid | name_desc
* ----+--------+----------+-----------
* 1 | 中国 | 0 | china
* 2 | 湖南省 | 1 | hunan
* 3 | 广东省 | 1 | guangdong
* 4 | 海南省 | 1 | hainan
* 5 | 河北省 | 1 | hebei
* 6 | 河南省 | 1 | henan
* 7 | 山东省 | 1 | shandong
* 8 | 湖北省 | 1 | hubei
* 9 | 江苏省 | 1 | jiangsu
* 10 | 深圳市 | 3 | shenzhen
* 11 | 长沙市 | 2 | changsha
* 22 | 祁北县 | 13 | qibei
* 12 | 南山区 | 10 | nanshan
* 21 | 祁西县 | 13 | qixi
* 13 | 衡阳市 | 2 | hengyang
* 14 | 耒阳市 | 13 | leiyang
* 15 | 龙岗区 | 10 | longgang
* 16 | 福田区 | 10 | futian
* 17 | 宝安区 | 10 | baoan
* 19 | 祁东县 | 13 | qidong
* 18 | 常宁市 | 13 | changning
* 20 | 祁南县 | 13 | qinan
*
*/
/* case 1.1 test root->leaf order siblings by id asc
* expect order: 1 2 11 13 14 18 19 20 21 22 3 10 12 15 16 17 4 5 6 7 8 9
*/
EXPLAIN (costs off)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id;
QUERY PLAN
------------------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1, array_col_2, array_col_4, array_siblings
-> Sort
Sort Key: array_siblings
-> Recursive Union
-> Sort
Sort Key: swtest.test_area.id
-> Seq Scan on test_area
Filter: (name = '中国'::text)
-> Sort
Sort Key: swtest.test_area.id
-> Hash Join
Hash Cond: (swtest.test_area.fatherid = tmp_reuslt."test_area@id")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(18 rows)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id;
id | name | fatherid | name_desc | level | connect_by_isleaf | connect_by_iscycle | connect_by_root | cpath
----+--------+----------+-----------+-------+-------------------+--------------------+-----------------+----------------------------
1 | 中国 | 0 | China | 1 | 0 | 0 | China | @中国
2 | 湖南省 | 1 | Hunan | 2 | 0 | 0 | China | @中国@湖南省
11 | 长沙市 | 2 | Changsha | 3 | 1 | 0 | China | @中国@湖南省@长沙市
13 | 衡阳市 | 2 | Hengyang | 3 | 0 | 0 | China | @中国@湖南省@衡阳市
14 | 耒阳市 | 13 | Leiyang | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@耒阳市
18 | 常宁市 | 13 | Changning | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@常宁市
19 | 祁东县 | 13 | Qidong | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@祁东县
20 | 祁南县 | 13 | Qinan | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@祁南县
21 | 祁西县 | 13 | Qixi | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@祁西县
22 | 祁北县 | 13 | Qibei | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@祁北县
3 | 广东省 | 1 | Guangdong | 2 | 0 | 0 | China | @中国@广东省
10 | 深圳市 | 3 | Shenzhen | 3 | 0 | 0 | China | @中国@广东省@深圳市
12 | 南山区 | 10 | Nanshan | 4 | 1 | 0 | China | @中国@广东省@深圳市@南山区
15 | 龙岗区 | 10 | Longgang | 4 | 1 | 0 | China | @中国@广东省@深圳市@龙岗区
16 | 福田区 | 10 | Futian | 4 | 1 | 0 | China | @中国@广东省@深圳市@福田区
17 | 宝安区 | 10 | Baoan | 4 | 1 | 0 | China | @中国@广东省@深圳市@宝安区
4 | 海南省 | 1 | Hainan | 2 | 1 | 0 | China | @中国@海南省
5 | 河北省 | 1 | Hebei | 2 | 1 | 0 | China | @中国@河北省
6 | 河南省 | 1 | Henan | 2 | 1 | 0 | China | @中国@河南省
7 | 山东省 | 1 | Shandong | 2 | 1 | 0 | China | @中国@山东省
8 | 湖北省 | 1 | Hubei | 2 | 1 | 0 | China | @中国@湖北省
9 | 江苏省 | 1 | Jiangsu | 2 | 1 | 0 | China | @中国@江苏省
(22 rows)
/* case 1.2 test root->leaf order siblings by id desc
* expect order: 1 9 8 7 6 5 4 3 10 17 16 15 12 2 13 22 21 20 19 18 14 11
*/
EXPLAIN (costs off)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id desc;
QUERY PLAN
------------------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1, array_col_2, array_col_4, array_siblings
-> Sort
Sort Key: array_siblings
-> Recursive Union
-> Sort
Sort Key: swtest.test_area.id DESC
-> Seq Scan on test_area
Filter: (name = '中国'::text)
-> Sort
Sort Key: swtest.test_area.id DESC
-> Hash Join
Hash Cond: (swtest.test_area.fatherid = tmp_reuslt."test_area@id")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(18 rows)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id desc;
id | name | fatherid | name_desc | level | connect_by_isleaf | connect_by_iscycle | connect_by_root | cpath
----+--------+----------+-----------+-------+-------------------+--------------------+-----------------+----------------------------
1 | 中国 | 0 | China | 1 | 0 | 0 | China | @中国
9 | 江苏省 | 1 | Jiangsu | 2 | 1 | 0 | China | @中国@江苏省
8 | 湖北省 | 1 | Hubei | 2 | 1 | 0 | China | @中国@湖北省
7 | 山东省 | 1 | Shandong | 2 | 1 | 0 | China | @中国@山东省
6 | 河南省 | 1 | Henan | 2 | 1 | 0 | China | @中国@河南省
5 | 河北省 | 1 | Hebei | 2 | 1 | 0 | China | @中国@河北省
4 | 海南省 | 1 | Hainan | 2 | 1 | 0 | China | @中国@海南省
3 | 广东省 | 1 | Guangdong | 2 | 0 | 0 | China | @中国@广东省
10 | 深圳市 | 3 | Shenzhen | 3 | 0 | 0 | China | @中国@广东省@深圳市
17 | 宝安区 | 10 | Baoan | 4 | 1 | 0 | China | @中国@广东省@深圳市@宝安区
16 | 福田区 | 10 | Futian | 4 | 1 | 0 | China | @中国@广东省@深圳市@福田区
15 | 龙岗区 | 10 | Longgang | 4 | 1 | 0 | China | @中国@广东省@深圳市@龙岗区
12 | 南山区 | 10 | Nanshan | 4 | 1 | 0 | China | @中国@广东省@深圳市@南山区
2 | 湖南省 | 1 | Hunan | 2 | 0 | 0 | China | @中国@湖南省
13 | 衡阳市 | 2 | Hengyang | 3 | 0 | 0 | China | @中国@湖南省@衡阳市
22 | 祁北县 | 13 | Qibei | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@祁北县
21 | 祁西县 | 13 | Qixi | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@祁西县
20 | 祁南县 | 13 | Qinan | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@祁南县
19 | 祁东县 | 13 | Qidong | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@祁东县
18 | 常宁市 | 13 | Changning | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@常宁市
14 | 耒阳市 | 13 | Leiyang | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@耒阳市
11 | 长沙市 | 2 | Changsha | 3 | 1 | 0 | China | @中国@湖南省@长沙市
(22 rows)
/* case 1.3 test double_root->leaf order siblings by id asc
* expect order: 10 12 15 16 17 13 14 18 19 20 21 22
*/
EXPLAIN (costs off)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '衡阳市' or name = '深圳市'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id;
QUERY PLAN
------------------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1, array_col_2, array_col_4, array_siblings
-> Sort
Sort Key: array_siblings
-> Recursive Union
-> Sort
Sort Key: swtest.test_area.id
-> Seq Scan on test_area
Filter: ((name = '衡阳市'::text) OR (name = '深圳市'::text))
-> Sort
Sort Key: swtest.test_area.id
-> Hash Join
Hash Cond: (swtest.test_area.fatherid = tmp_reuslt."test_area@id")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(18 rows)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '衡阳市' or name = '深圳市'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id;
id | name | fatherid | name_desc | level | connect_by_isleaf | connect_by_iscycle | connect_by_root | cpath
----+--------+----------+-----------+-------+-------------------+--------------------+-----------------+----------------
10 | 深圳市 | 3 | Shenzhen | 1 | 0 | 0 | Shenzhen | @深圳市
12 | 南山区 | 10 | Nanshan | 2 | 1 | 0 | Shenzhen | @深圳市@南山区
15 | 龙岗区 | 10 | Longgang | 2 | 1 | 0 | Shenzhen | @深圳市@龙岗区
16 | 福田区 | 10 | Futian | 2 | 1 | 0 | Shenzhen | @深圳市@福田区
17 | 宝安区 | 10 | Baoan | 2 | 1 | 0 | Shenzhen | @深圳市@宝安区
13 | 衡阳市 | 2 | Hengyang | 1 | 0 | 0 | Hengyang | @衡阳市
14 | 耒阳市 | 13 | Leiyang | 2 | 1 | 0 | Hengyang | @衡阳市@耒阳市
18 | 常宁市 | 13 | Changning | 2 | 1 | 0 | Hengyang | @衡阳市@常宁市
19 | 祁东县 | 13 | Qidong | 2 | 1 | 0 | Hengyang | @衡阳市@祁东县
20 | 祁南县 | 13 | Qinan | 2 | 1 | 0 | Hengyang | @衡阳市@祁南县
21 | 祁西县 | 13 | Qixi | 2 | 1 | 0 | Hengyang | @衡阳市@祁西县
22 | 祁北县 | 13 | Qibei | 2 | 1 | 0 | Hengyang | @衡阳市@祁北县
(12 rows)
/* case 1.4 test double_root->leaf order siblings by id desc
* expect order: 13 22 21 20 19 18 14 10 17 16 15 12
*/
EXPLAIN (costs off)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '衡阳市' or name = '深圳市'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id desc;
QUERY PLAN
------------------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1, array_col_2, array_col_4, array_siblings
-> Sort
Sort Key: array_siblings
-> Recursive Union
-> Sort
Sort Key: swtest.test_area.id DESC
-> Seq Scan on test_area
Filter: ((name = '衡阳市'::text) OR (name = '深圳市'::text))
-> Sort
Sort Key: swtest.test_area.id DESC
-> Hash Join
Hash Cond: (swtest.test_area.fatherid = tmp_reuslt."test_area@id")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(18 rows)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '衡阳市' or name = '深圳市'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id desc;
id | name | fatherid | name_desc | level | connect_by_isleaf | connect_by_iscycle | connect_by_root | cpath
----+--------+----------+-----------+-------+-------------------+--------------------+-----------------+----------------
13 | 衡阳市 | 2 | Hengyang | 1 | 0 | 0 | Hengyang | @衡阳市
22 | 祁北县 | 13 | Qibei | 2 | 1 | 0 | Hengyang | @衡阳市@祁北县
21 | 祁西县 | 13 | Qixi | 2 | 1 | 0 | Hengyang | @衡阳市@祁西县
20 | 祁南县 | 13 | Qinan | 2 | 1 | 0 | Hengyang | @衡阳市@祁南县
19 | 祁东县 | 13 | Qidong | 2 | 1 | 0 | Hengyang | @衡阳市@祁东县
18 | 常宁市 | 13 | Changning | 2 | 1 | 0 | Hengyang | @衡阳市@常宁市
14 | 耒阳市 | 13 | Leiyang | 2 | 1 | 0 | Hengyang | @衡阳市@耒阳市
10 | 深圳市 | 3 | Shenzhen | 1 | 0 | 0 | Shenzhen | @深圳市
17 | 宝安区 | 10 | Baoan | 2 | 1 | 0 | Shenzhen | @深圳市@宝安区
16 | 福田区 | 10 | Futian | 2 | 1 | 0 | Shenzhen | @深圳市@福田区
15 | 龙岗区 | 10 | Longgang | 2 | 1 | 0 | Shenzhen | @深圳市@龙岗区
12 | 南山区 | 10 | Nanshan | 2 | 1 | 0 | Shenzhen | @深圳市@南山区
(12 rows)
/* case 1.5 test leaf->root order siblings by id asc
* expect order: 18 13 2 1
*/
EXPLAIN (costs off)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '常宁市'
CONNECT BY id = prior fatherid
ORDER SIBLINGS BY id;
QUERY PLAN
------------------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_3, array_col_2, array_col_4, array_siblings
-> Sort
Sort Key: array_siblings
-> Recursive Union
-> Sort
Sort Key: swtest.test_area.id
-> Seq Scan on test_area
Filter: (name = '常宁市'::text)
-> Sort
Sort Key: swtest.test_area.id
-> Hash Join
Hash Cond: (swtest.test_area.id = tmp_reuslt."test_area@fatherid")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(18 rows)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '常宁市'
CONNECT BY id = prior fatherid
ORDER SIBLINGS BY id;
id | name | fatherid | name_desc | level | connect_by_isleaf | connect_by_iscycle | connect_by_root | cpath
----+--------+----------+-----------+-------+-------------------+--------------------+-----------------+----------------------------
18 | 常宁市 | 13 | Changning | 1 | 0 | 0 | Changning | @常宁市
13 | 衡阳市 | 2 | Hengyang | 2 | 0 | 0 | Changning | @常宁市@衡阳市
2 | 湖南省 | 1 | Hunan | 3 | 0 | 0 | Changning | @常宁市@衡阳市@湖南省
1 | 中国 | 0 | China | 4 | 1 | 0 | Changning | @常宁市@衡阳市@湖南省@中国
(4 rows)
/* case 1.6 test leaf->root order siblings by id desc
* expect order: 18 13 2 1
*/
EXPLAIN (costs off)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '常宁市'
CONNECT BY id = prior fatherid
ORDER SIBLINGS BY id desc;
QUERY PLAN
------------------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_3, array_col_2, array_col_4, array_siblings
-> Sort
Sort Key: array_siblings
-> Recursive Union
-> Sort
Sort Key: swtest.test_area.id DESC
-> Seq Scan on test_area
Filter: (name = '常宁市'::text)
-> Sort
Sort Key: swtest.test_area.id DESC
-> Hash Join
Hash Cond: (swtest.test_area.id = tmp_reuslt."test_area@fatherid")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(18 rows)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '常宁市'
CONNECT BY id = prior fatherid
ORDER SIBLINGS BY id desc;
id | name | fatherid | name_desc | level | connect_by_isleaf | connect_by_iscycle | connect_by_root | cpath
----+--------+----------+-----------+-------+-------------------+--------------------+-----------------+----------------------------
18 | 常宁市 | 13 | Changning | 1 | 0 | 0 | Changning | @常宁市
13 | 衡阳市 | 2 | Hengyang | 2 | 0 | 0 | Changning | @常宁市@衡阳市
2 | 湖南省 | 1 | Hunan | 3 | 0 | 0 | Changning | @常宁市@衡阳市@湖南省
1 | 中国 | 0 | China | 4 | 1 | 0 | Changning | @常宁市@衡阳市@湖南省@中国
(4 rows)
/* case 1.7
* test order siblings by const
* expect order: 1 2 11 13 14 18 19 20 21 22 3 10 12 15 16 17 4 5 6 7 8 9
*/
EXPLAIN (costs off)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY 1;
QUERY PLAN
------------------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1, array_col_2, array_col_4, array_siblings
-> Sort
Sort Key: array_siblings
-> Recursive Union
-> Sort
Sort Key: swtest.test_area.id
-> Seq Scan on test_area
Filter: (name = '中国'::text)
-> Sort
Sort Key: swtest.test_area.id
-> Hash Join
Hash Cond: (swtest.test_area.fatherid = tmp_reuslt."test_area@id")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(18 rows)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY 1;
id | name | fatherid | name_desc | level | connect_by_isleaf | connect_by_iscycle | connect_by_root | cpath
----+--------+----------+-----------+-------+-------------------+--------------------+-----------------+----------------------------
1 | 中国 | 0 | China | 1 | 0 | 0 | China | @中国
2 | 湖南省 | 1 | Hunan | 2 | 0 | 0 | China | @中国@湖南省
11 | 长沙市 | 2 | Changsha | 3 | 1 | 0 | China | @中国@湖南省@长沙市
13 | 衡阳市 | 2 | Hengyang | 3 | 0 | 0 | China | @中国@湖南省@衡阳市
14 | 耒阳市 | 13 | Leiyang | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@耒阳市
18 | 常宁市 | 13 | Changning | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@常宁市
19 | 祁东县 | 13 | Qidong | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@祁东县
20 | 祁南县 | 13 | Qinan | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@祁南县
21 | 祁西县 | 13 | Qixi | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@祁西县
22 | 祁北县 | 13 | Qibei | 4 | 1 | 0 | China | @中国@湖南省@衡阳市@祁北县
3 | 广东省 | 1 | Guangdong | 2 | 0 | 0 | China | @中国@广东省
10 | 深圳市 | 3 | Shenzhen | 3 | 0 | 0 | China | @中国@广东省@深圳市
12 | 南山区 | 10 | Nanshan | 4 | 1 | 0 | China | @中国@广东省@深圳市@南山区
15 | 龙岗区 | 10 | Longgang | 4 | 1 | 0 | China | @中国@广东省@深圳市@龙岗区
16 | 福田区 | 10 | Futian | 4 | 1 | 0 | China | @中国@广东省@深圳市@福田区
17 | 宝安区 | 10 | Baoan | 4 | 1 | 0 | China | @中国@广东省@深圳市@宝安区
4 | 海南省 | 1 | Hainan | 2 | 1 | 0 | China | @中国@海南省
5 | 河北省 | 1 | Hebei | 2 | 1 | 0 | China | @中国@河北省
6 | 河南省 | 1 | Henan | 2 | 1 | 0 | China | @中国@河南省
7 | 山东省 | 1 | Shandong | 2 | 1 | 0 | China | @中国@山东省
8 | 湖北省 | 1 | Hubei | 2 | 1 | 0 | China | @中国@湖北省
9 | 江苏省 | 1 | Jiangsu | 2 | 1 | 0 | China | @中国@江苏省
(22 rows)
/* case 1.8++ test explain for multiple order siblings column */
EXPLAIN (costs off)
SELECT * FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id, name, name_desc;
QUERY PLAN
--------------------------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1, array_siblings
-> Sort
Sort Key: array_siblings
-> Recursive Union
-> Sort
Sort Key: swtest.test_area.id, swtest.test_area.name, swtest.test_area.name_desc
-> Seq Scan on test_area
Filter: (name = '中国'::text)
-> Sort
Sort Key: swtest.test_area.id, swtest.test_area.name, swtest.test_area.name_desc
-> Hash Join
Hash Cond: (swtest.test_area.fatherid = tmp_reuslt."test_area@id")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(18 rows)
EXPLAIN (costs off)
SELECT * FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id desc, name desc , name_desc desc;
QUERY PLAN
-----------------------------------------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1, array_siblings
-> Sort
Sort Key: array_siblings
-> Recursive Union
-> Sort
Sort Key: swtest.test_area.id DESC, swtest.test_area.name DESC, swtest.test_area.name_desc DESC
-> Seq Scan on test_area
Filter: (name = '中国'::text)
-> Sort
Sort Key: swtest.test_area.id DESC, swtest.test_area.name DESC, swtest.test_area.name_desc DESC
-> Hash Join
Hash Cond: (swtest.test_area.fatherid = tmp_reuslt."test_area@id")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(18 rows)
EXPLAIN (costs off)
SELECT * FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id desc, name, name_desc desc;
QUERY PLAN
------------------------------------------------------------------------------------------------------------------------
CTE Scan on tmp_reuslt
CTE tmp_reuslt
-> StartWith Operator
Start With pseudo atts: RUITR, array_key_1, array_siblings
-> Sort
Sort Key: array_siblings
-> Recursive Union
-> Sort
Sort Key: swtest.test_area.id DESC, swtest.test_area.name, swtest.test_area.name_desc DESC
-> Seq Scan on test_area
Filter: (name = '中国'::text)
-> Sort
Sort Key: swtest.test_area.id DESC, swtest.test_area.name, swtest.test_area.name_desc DESC
-> Hash Join
Hash Cond: (swtest.test_area.fatherid = tmp_reuslt."test_area@id")
-> Seq Scan on test_area
-> Hash
-> WorkTable Scan on tmp_reuslt
(18 rows)

5
src/test/regress/parallel_schedule0
View File

@ -22,6 +22,11 @@ test: get_instr_unique_sql
# interferes with crash-recovery testing.
test: single_node_tablespace
#test startwith...connect by
test: sw_prepare
test: sw_basic sw_icbc sw_siblings sw_bugfix sw_by_rownum_level
test: sw_clearup
# ----------
# The first group of parallel tests
# ----------

182
src/test/regress/sql/sw_basic.sql Normal file
View File

@ -0,0 +1,182 @@
set client_min_messages = error;
set search_path=swtest;
SET CLIENT_ENCODING='UTF8';
/*
*
* START WITH .... CONNECT BY基础测试用例
*
* 测试用例表数
* openGauss=# select * from swtest.test_area;
* id | name | fatherid | name_desc
* ----+--------+----------+-----------
* 1 | 中国 | 0 | china
* 2 | 湖南省 | 1 | hunan
* 3 | 广东省 | 1 | guangdong
* 4 | 海南省 | 1 | hainan
* 5 | 河北省 | 1 | hebei
* 6 | 河南省 | 1 | henan
* 7 | 山东省 | 1 | shandong
* 8 | 湖北省 | 1 | hubei
* 9 | 江苏省 | 1 | jiangsu
* 10 | 深圳市 | 3 | shenzhen
* 11 | 长沙市 | 2 | changsha
* 22 | 祁北县 | 13 | qibei
* 12 | 南山区 | 10 | nanshan
* 21 | 祁西县 | 13 | qixi
* 13 | 衡阳市 | 2 | hengyang
* 14 | 耒阳市 | 13 | leiyang
* 15 | 龙岗区 | 10 | longgang
* 16 | 福田区 | 10 | futian
* 17 | 宝安区 | 10 | baoan
* 19 | 祁东县 | 13 | qidong
* 18 | 常宁市 | 13 | changning
* 20 | 祁南县 | 13 | qinan
*
*/
-- 一、基础语法测试
/*
* 用例1.1，基础用例包含所有伪列，leaf节点方向遍历查找
**/
EXPLAIN (COSTS OFF)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '@')
FROM test_area
START WITH name = '中国'
CONNECT BY PRIOR id = fatherid;
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '@')
FROM test_area
START WITH name = '中国'
CONNECT BY PRIOR id = fatherid;
/*
* 用例1.2，基础用例包含所有伪列，root节点方向遍历查找
**/
EXPLAIN (COSTS OFF)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '@')
FROM test_area
START WITH name = '耒阳市'
CONNECT BY id = PRIOR fatherid;
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '@')
FROM test_area
START WITH name = '耒阳市'
CONNECT BY id = PRIOR fatherid;
/*
* 用例1.3，基础用例包含所有伪列，root节点方向遍历查找（两条链）
**/
EXPLAIN (COSTS OFF)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '@')
FROM test_area
START WITH name = '耒阳市' OR name = '宝安区'
CONNECT BY id = PRIOR fatherid;
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '@')
FROM test_area
START WITH name = '耒阳市' OR name = '宝安区'
CONNECT BY id = PRIOR fatherid;
/*
* 用例1.5，基础用例包含所有伪列，测试多字符串拼接
**/
EXPLAIN (COSTS OFF)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '=>>')
FROM test_area
START WITH name = '中国'
CONNECT BY PRIOR id = fatherid;
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '=>>')
FROM test_area
START WITH name = '中国'
CONNECT BY PRIOR id = fatherid;
/*
* 用例1.6，基础用例包含所有伪列， 包含多字符拼接，多条查找链，startwith使用LIKE查找
**/
EXPLAIN (COSTS OFF)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '-*>')
FROM test_area
START WITH name like '%区'
CONNECT BY id = PRIOR fatherid;
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '-*>')
FROM test_area
START WITH name like '%区'
CONNECT BY id = PRIOR fatherid;
-- 二、扩展测试
/*
* 用例2.1，基础用例包含所有伪列， 包含多字符拼接，多条查找链，startwith使用IN子查询进行查找
**/
EXPLAIN (COSTS OFF)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '/')
FROM test_area
START WITH name IN (select name from test_area where id < 3)
CONNECT BY PRIOR id = fatherid;
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '/')
FROM test_area
START WITH name IN (select name from test_area where id < 3)
CONNECT BY PRIOR id = fatherid;
/*
* 用例2.2，基础用例包含所有伪列， 包含多字符拼接，多条查找链，startwith使用IN子查询进行查找，结果集进行伪列过滤
**/
EXPLAIN (COSTS OFF)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '/')
FROM test_area
WHERE LEVEL > 2
START WITH name IN (select name from test_area where id < 3)
CONNECT BY PRIOR id = fatherid;
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '/')
FROM test_area
WHERE LEVEL > 2
START WITH name IN (select name from test_area where id < 3)
CONNECT BY PRIOR id = fatherid;
/*
* 用例2.3，基础用例包含所有伪列， 包含多字符拼接，多条查找链，startwith使用IN子查询进行查找，结果集进行多个伪列过滤
**/
EXPLAIN (COSTS OFF)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '/')
FROM test_area
WHERE LEVEL > 2 AND connect_by_iscycle IS NOT NULL
START WITH name IN (select name from test_area where id < 3)
CONNECT BY PRIOR id = fatherid;
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), sys_connect_by_path(name_desc, '/')
FROM test_area
WHERE LEVEL > 2 AND connect_by_iscycle IS NOT NULL
START WITH name IN (select name from test_area where id < 3)
CONNECT BY PRIOR id = fatherid;
-- 三、 打开guc enable_startwith_debug = on测试
/* DFX test, verify if */
set enable_startwith_debug=on;
set client_min_messages=log;
explain (costs off)
select *, LEVEL, CONNECT_BY_ROOT(name_desc), SYS_CONNECT_BY_PATH(name, '/') cpath from test_area
START WITH name = '耒阳市'
CONNECT BY id = PRIOR fatherid;
select *, LEVEL, CONNECT_BY_ROOT(name_desc), SYS_CONNECT_BY_PATH(name, '/') cpath from test_area
START WITH name = '耒阳市'
CONNECT BY id = PRIOR fatherid;
explain (costs off)
select *, LEVEL, CONNECT_BY_ROOT(name_desc), SYS_CONNECT_BY_PATH(name, '/') cpath from test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
order siblings by id;
select *, LEVEL, CONNECT_BY_ROOT(name_desc), SYS_CONNECT_BY_PATH(name, '/') cpath from test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
order siblings by id;
reset enable_startwith_debug;
reset client_min_messages;

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set client_min_messages = error;
SET CLIENT_ENCODING='UTF8';
set current_schema=swtest;
/* invalid data type */
SELECT NAME,LEVEL,CONNECT_BY_ISLEAF,SYS_CONNECT_BY_PATH(NAME,'|'),CONNECT_BY_ROOT(NAME),ID,CHA,VCH,TEX,DAT,TIM,TIS,PID,PCHA,PVCH,PTEX,PDAT,PTIM,PTIS
FROM TEST_HCB_FQB
START WITH ID=1
CONNECT BY prior ID=PID
ORDER SIBLINGS BY NAME ASC;
-- invalid use connect_by_root, will treate it as regular column report column does not exists error
SELECT NAME,LEVEL,CONNECT_BY_ISLEAF,SYS_CONNECT_BY_PATH(NAME,'|'),CONNECT_BY_ROOT
FROM test_hcb_ptb
START WITH (ID=169 or ID=168) and CHA in ('afi','afg','afh')
CONNECT BY ID=PRIOR PID and CHA=PRIOR PCHA and VCH=PRIOR PVCH and DAT=PRIOR PDAT and TIM=PRIOR PTIM AND TIS=PRIOR PTIS
order by 1;
SELECT NAME,LEVEL,CONNECT_BY_ISLEAF,SYS_CONNECT_BY_PATH(NAME,'|'),CONNECT_BY_ROOT name
FROM test_hcb_ptb
START WITH (ID=169 or ID=168) and CHA in ('afi','afg','afh')
CONNECT BY ID=PRIOR PID and CHA=PRIOR PCHA and VCH=PRIOR PVCH and DAT=PRIOR PDAT and TIM=PRIOR PTIM AND TIS=PRIOR PTIS
order by 1;
SELECT NAME,LEVEL,CONNECT_BY_ISLEAF,SYS_CONNECT_BY_PATH(NAME,'|'),CONNECT_BY_ROOT(name)
FROM test_hcb_ptb
START WITH (ID=169 or ID=168) and CHA in ('afi','afg','afh')
CONNECT BY ID=PRIOR PID and CHA=PRIOR PCHA and VCH=PRIOR PVCH and DAT=PRIOR PDAT and TIM=PRIOR PTIM AND TIS=PRIOR PTIS
order by 1;
/* Unsupported StartWith Scenarios */
explain(costs off)
select * from test_hcb_ptbc t1 start with t1.id = 11 connect by prior t1.id = t1.pid;
select * from test_hcb_ptbc t1 start with t1.id = 11 connect by prior t1.id = t1.pid;
SELECT t1.id,t1.pid,t1.name,level FROM test_hcb_ptb t1,test_hcb_ptb t2 WHERE t1.id=t2.id START WITH t1.id=141 CONNECT BY PRIOR t1.id=t1.pid FOR UPDATE OF t2 NOWAIT;
SELECT t1.id, t1.pid,t1.name,level FROM core_066 t1 START WITH id = 117 CONNECT BY PRIOR id=pid FOR UPDATE;
/* connect by root scenarios */
select pid x,id,CONNECT_BY_ROOT ID from test_hcb_ptbc t1 start with id = 11 connect by prior id = pid;
select pid x,id,CONNECT_BY_ROOT ID alias_id from test_hcb_ptbc t1 start with id = 11 connect by prior id = pid;
select pid x,id,CONNECT_BY_ROOT t1.ID from test_hcb_ptbc t1 start with id = 11 connect by prior id = pid;
select pid x,id,CONNECT_BY_ROOT t1.ID alias_id from test_hcb_ptbc t1 start with id = 11 connect by prior id = pid;
/* infinite loop issues */
SELECT LEVEL,NAME,CONNECT_BY_ISLEAF,SYS_CONNECT_BY_PATH(NAME, '/'),CONNECT_BY_ROOT(ID)
FROM test_swcb_a
START WITH ID='00118'
CONNECT BY PRIOR ID=PID
ORDER SIBLINGS BY NAME;
/* fromlist startwith for single table */
select t1.ID,t1.VCH,pid,NAME,PTEX from TEST_HCB_FQB t1,TEST_SUBLINK t2 where t1.id=t2.id start with t1.id=1 CONNECT BY PRIOR t1.id = t1.pid;
explain (costs off) select t1.ID,t1.VCH,pid,NAME,PTEX from TEST_HCB_FQB t1,TEST_SUBLINK t2 where t1.id=t2.id start with t1.id=1 CONNECT BY PRIOR t1.id = t1.pid;
/* swcb中参数为proceder参数 */
CREATE OR REPLACE FUNCTION test_hcb_pro1(i_id in int) return int
AS
o_out int;
BEGIN
select count(*) into o_out from TEST_HCB_FQB t1 START WITH t1.id = i_id
CONNECT BY PRIOR t1.id = t1.pid;
return o_out;
END;
/
select test_hcb_pro1(11);
drop PROCEDURE test_hcb_pro1;
/* startwith dealing with subqueries */
select tt.id,tt.name from (select t1.ID,t1.VCH,pid,NAME,PTEX from TEST_HCB_FQB t1,TEST_SUBLINK t2 where t1.id=t2.id) tt
start with tt.id=1 CONNECT BY PRIOR tt.id = tt.pid ;
explain (costs off) select tt.id,tt.name from (select t1.ID,t1.VCH,pid,NAME,PTEX from TEST_HCB_FQB t1,TEST_SUBLINK t2 where t1.id=t2.id) tt
start with tt.id=1 CONNECT BY PRIOR tt.id = tt.pid ;
select test.id,test.pid,test.name
from
(select t1.id id, t1.pid pid, t1.name name from TEST_HCB_FQB t1
union
select t2.id id, t2.pid pid, t2.name name from TEST_HCB_FQB t2) test
start with test.id = 12
connect by prior test.id = test.pid;
/* startwith dealing with subqueries without alias */
SELECT NAME,LEVEL,CONNECT_BY_ISLEAF,CONNECT_BY_ROOT(NAME),SYS_CONNECT_BY_PATH(NAME, '/')
FROM (SELECT * FROM test_hcb_ptb)
START WITH CHA IN ('afi','afg','afh')
CONNECT BY PRIOR ID=PID
ORDER SIBLINGS BY NAME;
SELECT NAME,LEVEL,CONNECT_BY_ISLEAF,CONNECT_BY_ROOT(NAME),SYS_CONNECT_BY_PATH(NAME, '/')
FROM (SELECT * FROM test_hcb_ptb)
START WITH CHA IN ('afi','afg','afh')
CONNECT BY PRIOR ID=PID
ORDER SIBLINGS BY 1;
SELECT NAME,LEVEL,CONNECT_BY_ISLEAF,CONNECT_BY_ROOT(NAME),SYS_CONNECT_BY_PATH(NAME, '/')
FROM (SELECT * FROM test_hcb_ptb)
START WITH CHA IN ('afi','afg','afh')
CONNECT BY PRIOR ID=PID
ORDER SIBLINGS BY 999;
SELECT NAME,LEVEL,CONNECT_BY_ISLEAF,CONNECT_BY_ROOT(NAME),SYS_CONNECT_BY_PATH(NAME, '/')
FROM (SELECT * FROM test_hcb_ptb)
START WITH CHA IN ('afi','afg','afh')
CONNECT BY PRIOR ID=PID
ORDER SIBLINGS BY 1, LEVEL;
SELECT NAME,LEVEL,CONNECT_BY_ISLEAF,CONNECT_BY_ROOT(NAME),SYS_CONNECT_BY_PATH(NAME, '/')
FROM (SELECT * FROM test_hcb_ptb)
START WITH CHA IN ('afi','afg','afh')
CONNECT BY PRIOR ID=PID
ORDER SIBLINGS BY 1, HUAWEI;
/* check siblings ordering */
SELECT NAME,LEVEL,CONNECT_BY_ISLEAF,SYS_CONNECT_BY_PATH(NAME,'|'),CONNECT_BY_ROOT(NAME)
FROM test_hcb_ptb
START WITH (ID=168 or ID=169)
CONNECT BY ID = PRIOR PID
ORDER SIBLINGS BY NAME ASC;
-- connect_by_root/sys_connect_by_path() unsupported cases
explain
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root name_desc, sys_connect_by_path(level, '@')
FROM test_area
START WITH name = '中国'
CONNECT BY PRIOR id = fatherid;
-- sys_connect_by_path() only supports char type
explain
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root name_desc, sys_connect_by_path(id, '@')
FROM test_area
START WITH name = '中国'
CONNECT BY PRIOR id = fatherid;
/* sys_connect_by_path & connect_by_root can support char(xx) */
SELECT name,LEVEL,connect_by_root(CHA)
FROM test_hcb_fqb
START WITH ID = 1
CONNECT BY PRIOR CHA = PCHA
ORDER BY ID ASC;
SELECT name,level,connect_by_root t1.cha as cha_col
FROM test_hcb_fqb t1
START WITH id = 1
CONNECT BY PRIOR cha = pcha
ORDER BY id ASC;
SELECT name,LEVEL,sys_connect_by_path(CHA, '==》')
FROM test_hcb_fqb
START WITH ID = 1
CONNECT BY PRIOR CHA = PCHA
ORDER BY ID ASC;
/* empty delimiter in sys_connect_by_path(VCH,'') should be rejected */
SELECT name,LEVEL,sys_connect_by_path(VCH,'')
FROM test_hcb_ptb
START WITH ID = 1
CONNECT BY PRIOR CHA = PCHA
ORDER BY ID ASC;
/* start with null must not cause core-dump error */
SELECT *
FROM test_hcb_ptb
START WITH NULL
CONNECT BY PRIOR CHA = PCHA
ORDER BY ID ASC;
/* start with pbe */
PREPARE sthpt(int) AS SELECT t1.id,t1.pid,t1.name FROM test_hcb_ptb t1 START WITH id = $1 CONNECT BY PRIOR pid=id;
EXECUTE sthpt(141);
/* with-clause used in startwith rewrite */
explain (costs off) with subquery (id,pid,name) as
(
select t1.id,t1.pid,t1.name, LEVEL from test_hcb_ptb t1 where level>=1
start with id = 141 connect by prior pid=id
)
select t1.id,t1.pid,t1.name,LEVEL from subquery t1
start with id = 141 connect by prior pid=id;
explain (costs off) select t1.id,t1.pid,t1.name,LEVEL
from (select t2.id,t2.pid,t2.name,LEVEL from test_hcb_ptb t2 where level>=1 start with t2.id = 141 connect by prior pid=id) t1
where level>=1 start with id = 141 connect by prior pid=id;
/* core issue */
explain select sysdate from test_hcb_ptb t1 start with id = 141 connect by prior pid=id;
select count(sysdate) from test_hcb_ptb t1 start with id = 141 connect by prior pid=id;
/* core issue sys_connect_by_path(cosnt) core issue */
select t1.id,t1.pid,LEVEL,sys_connect_by_path(null, '->') pa, t1.name from test_hcb_ptb t1 start with id = 141 connect by prior id = pid;
select t1.id,t1.pid,LEVEL,sys_connect_by_path('id', '->') pa, t1.name from test_hcb_ptb t1 start with id = 141 connect by prior id = pid;
select t1.id,t1.pid,LEVEL,sys_connect_by_path(' ', '->') pa, t1.name from test_hcb_ptb t1 start with id = 141 connect by prior id = pid;
/* core issue, check args */
explain select t1.id,t1.pid,t1.name,level from test_hcb_ptb t1 start with id=141 connect by prior id=pid Order By NLSSORT ( id, ' NLS_SORT = SCHINESE_PINYIN_M ' );
select t1.id,t1.pid,t1.name,level from test_hcb_ptb t1 start with id=141 connect by prior id=pid Order By NLSSORT ( id, ' NLS_SORT = SCHINESE_PINYIN_M ' );
/* core issue, check args */
drop table if exists region cascade;
create table region
(
region_cd varchar(50) primary key ,
REGION_MGR_ASSOCIATE_ID number(18,9),
c1 serial
);
select region_mgr_associate_id from region;
drop table if exists item_price_history cascade;
create table item_price_history
(
ITEM_ID number(39,10) primary key ,
LOCATION_ID number(2,0) NULL,c1 serial
);
SELECT (MIN(region_cd)) Column_001, length(CAST('B' AS bytea), 'UTF8') Column_002
FROM region , item_price_history
WHERE REGION_MGR_ASSOCIATE_ID = ITEM_ID
START WITH REGION_MGR_ASSOCIATE_ID NOT LIKE '_W_'
CONNECT BY PRIOR LOCATION_ID = REGION_MGR_ASSOCIATE_ID
GROUP BY 2;
drop table item_price_history;
drop table region;
/* */
create table test1(id int,pid int,name text, level int);
create table test2(id int,pid int,name text, connect_by_iscycle int);
create table test3(id int,pid int,name text, connect_by_isleaf int);
create table test4(id int,pid int,name text, c4 int);
insert into test1 select id,pid,name,id%10 from test_hcb_ptb;
insert into test2 select id,pid,name,id%10 from test_hcb_ptb;
insert into test3 select id,pid,name,id%10 from test_hcb_ptb;
insert into test4 select id,pid,name,id%10 from test_hcb_ptb;
/* level/connect_by_iscycle/connect_by_isleaf is for connect by's level value */
select id,pid,name,test1.level, level from test1 start with id = 141 connect by prior pid=id;
select id,pid,name,test2.connect_by_iscycle, connect_by_iscycle from test2 start with id = 141 connect by prior pid=id;
select id,pid,name,test3.connect_by_isleaf, connect_by_isleaf from test3 start with id = 141 connect by prior pid=id;
drop table test1;
drop table test2;
drop table test3;
drop table test4;
/* */
/* 查询1 */
SELECT TRAIT_VALUE_CD
FROM trait_value
START WITH TRAIT_VALUE_CD=TRAIT_VALUE_CD
CONNECT BY PRIOR UOM_CD LIKE '_E_';
create table region
(
region_cd varchar(50) primary key ,
REGION_MGR_ASSOCIATE_ID number(18,9),c1 serial
);
create table item_price_history
(
ITEM_ID number(39,10) primary key ,
LOCATION_ID number(2,0) NULL,c1 serial
);
INSERT INTO REGION VALUES ('A', 0.123433);
INSERT INTO REGION VALUES ('B', NULL);
INSERT INTO REGION VALUES ('C', 2.232008908);
INSERT INTO REGION VALUES ('D', 3.878789);
INSERT INTO REGION VALUES ('E', 4.89060603);
INSERT INTO REGION VALUES ('F', 5.82703827);
INSERT INTO REGION VALUES ('G', NULL);
INSERT INTO REGION VALUES ('H', 7.3829083);
INSERT INTO ITEM_PRICE_HISTORY VALUES (0.12, 4);
INSERT INTO ITEM_PRICE_HISTORY VALUES (1.3, 1);
INSERT INTO ITEM_PRICE_HISTORY VALUES (2.23, NULL);
INSERT INTO ITEM_PRICE_HISTORY VALUES (3.33, 3);
INSERT INTO ITEM_PRICE_HISTORY VALUES (4.98, 4);
INSERT INTO ITEM_PRICE_HISTORY VALUES (5.01, 5);
INSERT INTO ITEM_PRICE_HISTORY VALUES (6, 6);
INSERT INTO ITEM_PRICE_HISTORY VALUES (0.7, 7);
INSERT INTO ITEM_PRICE_HISTORY VALUES (0.08, 8);
INSERT INTO ITEM_PRICE_HISTORY VALUES (9.12, 9);
/* 查询2 */
SELECT 1
FROM region , item_price_history
WHERE REGION_MGR_ASSOCIATE_ID = ITEM_ID
START WITH REGION_MGR_ASSOCIATE_ID NOT LIKE '_W_'
CONNECT BY PRIOR LOCATION_ID = REGION_MGR_ASSOCIATE_ID;
drop table region;
drop table item_price_history;
/* */
create table test1(c1 int, c2 int, c3 int);
insert into test1 values(1,1,1);
insert into test1 values(2,2,2);
-- encountered with 200 iteration limit
select * from test1 t1 start with c1=1 connect by prior c2<>c3;
-- will return result when cycle is met
select * from test1 t1 start with c1=1 connect by NOCYCLE prior c2<>c3;
drop table test1;
-- error out a case when NOCYCLE is not specify and use connect_by_iscycle
select t1.id, LEVEL, connect_by_iscycle from test_hcb_ptb t1 start with id = 1 connect by prior id = pid;
create table mag_area
(
area_code varchar(10),
area_name varchar(120),
area_short_name varchar(120),
local_name varchar(80),
belong_area_code varchar(10),
bank_level varchar(8),
contry_code varchar(5),
part_code varchar(5),
time_zone varchar(9),
bank_code varchar(10),
group_code varchar(5),
mag_area_grade varchar(3),
mag_area_status varchar(1),
mag_area_broad varchar(1)
);
create table mag_image_tpl
(
seq varchar(20),
area_code varchar(10),
archive_type varchar(3),
busitype varchar(8),
image_type varchar(8),
app_type varchar(10),
rule_id varchar(10),
valid_flag varchar(1),
modify_branch varchar(10),
modify_user varchar(9),
modify_time varchar(14)
);
explain
select a.rule_id, b.mag_area_grade,
max(b.mag_area_grade) OVER (PARTITION BY archive_type, busitype,image_type,app_type) max_level
FROM mag_image_tpl a, mag_area b
WHERE a.AREA_CODE IN (
SELECT area_code
FROM mag_area
START WITH area_code = '1'
CONNECT BY PRIOR belong_area_code = area_code
)
AND a.archive_type = 'A'
AND a.BUSITYPE = 'B'
AND a.area_code = b.area_code;
select a.rule_id, b.mag_area_grade,
max(b.mag_area_grade) OVER (PARTITION BY archive_type, busitype,image_type,app_type) max_level
FROM mag_image_tpl a, mag_area b
WHERE a.AREA_CODE IN (
SELECT area_code
FROM mag_area
START WITH area_code = '1'
CONNECT BY PRIOR belong_area_code = area_code
)
AND a.archive_type = 'A'
AND a.BUSITYPE = 'B'
AND a.area_code = b.area_code;
drop table mag_area;
drop table mag_image_tpl;
SELECT id, sys_connect_by_path(name_desc, '@') || id
FROM test_area
START WITH name = '耒阳市'
CONNECT BY id = PRIOR fatherid;
explain
SELECT table_name || NVL('test','_B$') AS table_name
FROM (SELECT TRIM(SUBSTR(txt,
INSTR(txt, ',', 1, LEVEL) + 1,
INSTR(txt, ',', 1, LEVEL + 1) -
INSTR(txt, ',', 1, LEVEL) - 1)) AS table_name
FROM (SELECT ',' || REPLACE('test' , ' ', '') || ',' txt FROM sys_dummy)
CONNECT BY LEVEL <= LENGTH(REPLACE('test', ' ', '')) - LENGTH(REPLACE(REPLACE('test', ' ', ''), ',', '')) + 1);
SELECT table_name || NVL('test','_B$') AS table_name
FROM (SELECT TRIM(SUBSTR(txt,
INSTR(txt, ',', 1, LEVEL) + 1,
INSTR(txt, ',', 1, LEVEL + 1) -
INSTR(txt, ',', 1, LEVEL) - 1)) AS table_name
FROM (SELECT ',' || REPLACE('test' , ' ', '') || ',' txt FROM sys_dummy)
CONNECT BY LEVEL <= LENGTH(REPLACE('test', ' ', '')) - LENGTH(REPLACE(REPLACE('test', ' ', ''), ',', '')) + 1);
-- fix infinite recursive
explain select * from t1 start with id = 1 connect by prior id != pid;
create table tsc_rtbl(c_int int,c_varchar1 varchar,c_varchar2 varchar);
alter table tsc_rtbl drop column c_varchar2;
alter table tsc_rtbl add column c_varchar2 varchar;
select c_int,c_varchar1,c_varchar2 from tsc_rtbl
start with c_int<10 connect by nocycle prior c_int=c_int;
create table t1_area (id int4,name text, fatherid int4, name_desc text);
insert into t1_area values (1, '中国', 0, 'China');
insert into t1_area values (2, '湖南省',1 , 'Hunan');
insert into t1_area values (3, '广东省',1 , 'Guangdong');
insert into t1_area values (4, '海南省',1 , 'Hainan');
insert into t1_area values (5, '河北省',1 , 'Hebei');
insert into t1_area values (6, '河南省',1 , 'Henan');
insert into t1_area values (7, '山东省',1 , 'Shandong');
insert into t1_area values (8, '湖北省',1 , 'Hubei');
insert into t1_area values (9, '江苏省',1 , 'Jiangsu');
insert into t1_area values (10,'深圳市',3 , 'Shenzhen');
insert into t1_area values (11,'长沙市',2 , 'Changsha');
insert into t1_area values (22,'祁北县',13, 'Qibei');
insert into t1_area values (12,'南山区',10, 'Nanshan');
insert into t1_area values (21,'祁西县',13, 'Qixi');
insert into t1_area values (13,'衡阳市',2 , 'Hengyang');
insert into t1_area values (14,'耒阳市',13, 'Leiyang');
insert into t1_area values (15,'龙岗区',10, 'Longgang');
insert into t1_area values (16,'福田区',10, 'Futian');
insert into t1_area values (17,'宝安区',10, 'Baoan');
insert into t1_area values (19,'祁东县',13, 'Qidong');
insert into t1_area values (18,'常宁市',13, 'Changning');
insert into t1_area values (20,'祁南县',13, 'Qinan');
SELECT *, connect_by_root(name_desc), sys_connect_by_path(name_desc, '->')
FROM t1_area
START WITH name = '耒阳市'
CONNECT BY id = PRIOR fatherid;
--创建drop column并加回场景
alter table t1_area drop column name_desc;
alter table t1_area add column name_desc text;
-- 原有备drop列为空
SELECT *, connect_by_root(name_desc), sys_connect_by_path(name_desc, '->')
FROM t1_area
START WITH name = '耒阳市'
CONNECT BY id = PRIOR fatherid;
-- 新插入相同数据，原有drop列后的空值和当前有效值并存
insert into t1_area values (1, '中国', 0, 'China');
insert into t1_area values (2, '湖南省',1 , 'Hunan');
insert into t1_area values (3, '广东省',1 , 'Guangdong');
insert into t1_area values (4, '海南省',1 , 'Hainan');
insert into t1_area values (5, '河北省',1 , 'Hebei');
insert into t1_area values (6, '河南省',1 , 'Henan');
insert into t1_area values (7, '山东省',1 , 'Shandong');
insert into t1_area values (8, '湖北省',1 , 'Hubei');
insert into t1_area values (9, '江苏省',1 , 'Jiangsu');
insert into t1_area values (10,'深圳市',3 , 'Shenzhen');
insert into t1_area values (11,'长沙市',2 , 'Changsha');
insert into t1_area values (22,'祁北县',13, 'Qibei');
insert into t1_area values (12,'南山区',10, 'Nanshan');
insert into t1_area values (21,'祁西县',13, 'Qixi');
insert into t1_area values (13,'衡阳市',2 , 'Hengyang');
insert into t1_area values (14,'耒阳市',13, 'Leiyang');
insert into t1_area values (15,'龙岗区',10, 'Longgang');
insert into t1_area values (16,'福田区',10, 'Futian');
insert into t1_area values (17,'宝安区',10, 'Baoan');
insert into t1_area values (19,'祁东县',13, 'Qidong');
insert into t1_area values (18,'常宁市',13, 'Changning');
insert into t1_area values (20,'祁南县',13, 'Qinan');
SELECT *, connect_by_root(name_desc), sys_connect_by_path(name_desc, '->')
FROM t1_area
START WITH name = '耒阳市'
CONNECT BY id = PRIOR fatherid;
SELECT * FROM t1_area START WITH id in ('1','2') CONNECT BY PRIOR fatherid = id;
SELECT * FROM t1_area START WITH (cast(id as varchar) COLLATE "C") in (cast(+ (id) as varchar) COLLATE "C") and id < 4 connect by id = prior fatherid;
SELECT * FROM t1_area, tsc_rtbl START WITH id = 1 CONNECT BY PRIOR fatherid = id;
SELECT *, connect_by_root(name_desc), sys_connect_by_path(name_desc, '->')
FROM t1_area;
/* fix start with in with clause */
explain (costs off) WITH WITH_001 AS (SELECT 1 FROM offers_20050701 ,trait_value START WITH PARTY_ID=TRAIT_VAL CONNECT BY PRIOR TRAIT_VALUE_CD LIKE '%V%')
SELECT mfg
FROM brand ,trait_value ,WITH_001
START WITH TRAIT_VALUE_CD=brand_name
CONNECT BY PRIOR brand_cd=UOM_CD;
WITH WITH_001 AS (SELECT 1 FROM offers_20050701 ,trait_value START WITH PARTY_ID=TRAIT_VAL CONNECT BY PRIOR TRAIT_VALUE_CD LIKE '%V%')
SELECT mfg
FROM brand ,trait_value ,WITH_001
START WITH TRAIT_VALUE_CD=brand_name
CONNECT BY PRIOR brand_cd=UOM_CD;
/* fix reference to level in connect by function calls */
SELECT 1, level FROM t1_area CONNECT BY length(level) IS NULL;
/* prior params of procedure */
create or replace function test_tmp1(out id int,out pid int,out name varchar,out level int) return SETOF RECORD
IS
declare
CURSOR C1(sedid int) IS select t1.id,t1.pid,t1.name,level from test_hcb_ptb t1 start with id = sedid connect by prior pid=id;
begin
open C1(141);
loop
fetch C1 into id,pid,name,level;
EXIT WHEN C1%NOTFOUND;
return next;
end loop;
close C1;
end;
/
select * from test_tmp1();
drop procedure test_tmp1;
drop table t1_area;
drop table tsc_rtbl;
-- 原问题单场景，connect_by_root(1)出现在在表达式中报错
explain
select t1.id,t1.pid,t1.name,LEVEL le,connect_by_root(1), connect_by_root(id)
from test_hcb_ptb t1
where connect_by_root(1) > 0
start with id = 141
connect by prior pid=id;
select t1.id,t1.pid,t1.name,LEVEL le,connect_by_root(1), connect_by_root(id)
from test_hcb_ptb t1
where connect_by_root(1) > 0
start with id = 141
connect by prior pid=id;
-- 扩展场景, connect_by_root(id)报错找不到列
explain
select t1.id,t1.pid,t1.name,LEVEL le,connect_by_root(1), connect_by_root(id)
from test_hcb_ptb t1
where connect_by_root(id) > 0
start with id = 141
connect by prior pid=id;
select t1.id,t1.pid,t1.name,LEVEL le,connect_by_root(1), connect_by_root(id)
from test_hcb_ptb t1
where connect_by_root(id) > 0
start with id = 141
connect by prior pid=id;
-- 扩展场景，sys_connect_by_path(123, '-') is not null
explain
select t1.id,t1.pid,t1.name,LEVEL le,connect_by_root(1), connect_by_root(id), sys_connect_by_path(123, '-')
from test_hcb_ptb t1
where sys_connect_by_path(123, '-') is not null
start with id = 141
connect by prior pid=id;
create table ctI as select t1.id,t1.pid,t1.name,level as le from test_hcb_ptb t1 start with id=141 connect by prior id=pid;
create table ctII as select t1.id,t1.pid,t1.name,level from test_hcb_ptb t1 start with id=141 connect by prior id=pid;
\d ctI;
\d ctII;
drop table ctI;
drop table ctII;
/*
* NOTE: need do upgrade change to have syc_conenct_by_path()/connect_by_root() to be volatile
*/
/*
select t1.id,t1.pid,t1.name,LEVEL le,connect_by_root(1), connect_by_root(id), sys_connect_by_path(123, '-')
from test_hcb_ptb t1
where sys_connect_by_path(123, '-') is not null
start with id = 141
connect by prior pid=id;
*/
-- 扩展场景，sys_connect_by_path(123, '-') 验证能够被正确匹配
explain
select t1.id,t1.pid,t1.name,LEVEL le,connect_by_root(1), connect_by_root(id), sys_connect_by_path(123, '-')
from test_hcb_ptb t1
where sys_connect_by_path(123, '-') like '-123-123-123%'
start with id = 141
connect by prior pid=id;
/*
* NOTE: need do upgrade change to have syc_conenct_by_path()/connect_by_root() to be volatile
*/
/*
select t1.id,t1.pid,t1.name,LEVEL le,connect_by_root(1), connect_by_root(id), sys_connect_by_path(123, '-')
from test_hcb_ptb t1
where sys_connect_by_path(123, '-') like '-123-123-123%'
start with id = 141
connect by prior pid=id;
*/
/* testing distinct qualifier */
select distinct id,pid,name,LEVEL from t1 start with id = 1 connect by prior pid=id order by 1;
/* testing NOT expression */
select t1.id, t1.pid, t1.name from t1 start with not id=1 connect by prior pid=id;
/* testing func expr in connect by clause */
explain select trim(t1.name) from test_hcb_ptb t1 connect by trim(t1.name) is not null;
/* fix create table as with start with */
create table ct as select t1.id,t1.pid,t1.name,level from test_hcb_ptb t1 start with id=141 connect by prior id=pid;
drop table ct;
set current_schema = public;
create table t1(c1 int,c2 int,c3 int);
insert into t1 values(1,1,1);
insert into t1 values(2,2,2);
select *, connect_by_iscycle from t1 start with c1=1 connect by nocycle prior c1=c2 order siblings by 1,2;
insert into t1 values(1,1,1);
insert into t1 values(2,2,2);
select *, connect_by_iscycle from t1 start with c1=1 connect by nocycle prior c1=c2 order siblings by 1,2;
insert into t1 values(1,NULL,1);
select *, connect_by_iscycle from t1 start with c1=1 connect by nocycle prior c1=c2 order siblings by 1,2 nulls first;
select *, connect_by_iscycle from t1 start with c1=1 connect by nocycle prior c1=c2 order siblings by 1,2 nulls last;
delete from t1 where c2 is null;
select *, connect_by_iscycle from t1 start with c1<3 connect by nocycle prior c1<c2 order siblings by NLSSORT (c1, ' NLS_SORT = generic_m_ci ');
select max(c1) + level from t1 connect by prior c1 = c2;
select * from t1 connect by cast(level as bigint) < 3;
select * from t1 connect by cast(level as int4) < 3;
explain select * from t1 connect by level is not null;
select * from t1 connect by level is not null and level < 3;
select * from t1 connect by level;
select t1.id a.d jack from t1;
select t1.id bauer jack from t1;
drop table t1;
/* limit + startwith 场景下执行阶段targetlist报错 */
CREATE TABLE log_part (
ts timestamp(6) without time zone DEFAULT now() NOT NULL,
op character(1),
act_no numeric(38,0),
old_blc numeric(38,0),
num numeric(38,0),
threadid bigint,
index integer,
tran integer
)
WITH (orientation=row, compression=no)
PARTITION BY RANGE (ts)
INTERVAL('1 day')
(
PARTITION p_2020_05_21 VALUES LESS THAN ('2020-05-21') TABLESPACE pg_default
)
ENABLE ROW MOVEMENT;
insert into log_part values('2021-09-24 10:12:19.451125','m',255, 10000000, -374929792, 39, 0, 0);
insert into log_part values('2021-09-24 10:12:19.451125','a',548, 10000000, 374929792, 39, 0, 0);
insert into log_part values('2021-09-24 10:12:19.449826','m', 39, 10000000, -473910067, 97, 0, 0);
insert into log_part values('2021-09-24 10:12:19.451221','m',250, 10000000, -757146539, 63, 0, 0);
insert into log_part values('2021-09-24 10:12:19.449643','m',916, 10000000, -418707874, 100, 0, 0);
insert into log_part values('2021-09-24 10:12:19.451052','m',510, 10000000, -868384331, 45, 0, 0);
insert into log_part values('2021-09-24 10:12:19.451039','m',541, 10000000, -782801693, 101, 0, 0);
insert into log_part values('2021-09-24 10:12:19.450232','m', 4, 10000000, -794225803, 33, 0, 0);
insert into log_part values('2021-09-24 10:12:19.450352','m',123, 10000000, -494836087, 58, 0, 0);
insert into log_part values('2021-09-24 10:12:19.449622','m',876, 10000000, -79442930, 60, 0, 0);
insert into log_part values('2021-09-24 10:12:19.449785','m', 21, 10000000, -560326111, 65, 0, 0);
insert into log_part values('2021-09-24 10:12:19.449828','m',484, 10000000, -571750221, 29, 0, 0);
insert into log_part values('2021-09-24 10:12:19.449657','m',167, 10000000, -146895512, 106, 0, 0);
insert into log_part values('2021-09-24 10:12:19.449826','a', 35, 10000000, 473910067, 97, 0, 0);
insert into log_part values('2021-09-24 10:12:19.451221','a',540, 10000000, 757146539, 63, 0, 0);
insert into log_part values('2021-09-24 10:12:19.449706','m',118, 10000000, -318894193, 50, 0, 0);
insert into log_part values('2021-09-24 10:12:19.501816','m',105, 10000000, -997671676, 39, 0, 0);
insert into log_part values('2021-09-24 10:12:19.449602','m',858, 10000000, -207656402, 28, 0, 0);
insert into log_part values('2021-09-24 10:12:19.450566','m',607, 10000000, -479468765, 30, 0, 0);
insert into log_part values('2021-09-24 10:12:19.451052','a',132, 10000000, 868384331, 45, 0, 0);
insert into log_part values('2021-09-24 10:12:19.451039','a',891, 10000000, 782801693, 101, 0, 0);
explain
select * from (select * from log_part where act_no=250)
start with old_blc=10000000 connect by prior old_blc + prior num = old_blc and act_no=prior act_no limit 10;
select * from (select * from log_part where act_no=250)
start with old_blc=10000000 connect by prior old_blc + prior num = old_blc and act_no=prior act_no limit 10;
explain
select *, connect_by_root old_blc from (select * from log_part where act_no=250)
start with old_blc=10000000 connect by prior old_blc + prior num = old_blc and act_no=prior act_no limit 10;
select *, connect_by_root old_blc from (select * from log_part where act_no=250)
start with old_blc=10000000 connect by prior old_blc + prior num = old_blc and act_no=prior act_no limit 10;
select *, connect_by_root old_blc alias_old_blc from (select * from log_part where act_no=250)
start with old_blc=10000000 connect by prior old_blc + prior num = old_blc and act_no=prior act_no limit 10;
SELECT *, CONNECT_BY_ROOT old_blc AS alias_old_blc FROM (SELECT * FROM log_part WHERE act_no=250)
START WITH old_blc=10000000 CONNECT BY PRIOR old_blc + PRIOR num = old_blc AND act_no = PRIOR act_no LIMIT 10;
explain
select op , act_no , old_blc , num , threadid , index , tran ,level from log_part
start with old_blc=10000000 connect by prior old_blc + prior num = old_blc and act_no=prior act_no
order by 1,2,3,4 limit 10;
select op , act_no , old_blc , num , threadid , index , tran ,level from log_part
start with old_blc=10000000 connect by prior old_blc + prior num = old_blc and act_no=prior act_no
order by 1,2,3,4 limit 10;
drop table log_part;
set current_schema=swtest;
EXPLAIN SELECT * FROM test_area START WITH name = '中国' CONNECT BY PRIOR id = fatherid limit 10;
SELECT * FROM test_area START WITH name = '中国' CONNECT BY PRIOR id = fatherid limit 10;
set max_recursive_times=100000000;
create table tt22(x int);
create or replace view dual as select 'x' x;
insert into tt22 select level from dual connect by level <=1000000;
select count(*) from tt22;
set max_recursive_times=200;
insert into tt22 select level from dual connect by level <=1000000;
drop table tt22;
/* 修复RecursiveUnion的inner分支备planning成BaseResult节点 */
explain select t1.id,t1.pid,t1.name from test_hcb_ptb t1 start with id=141 connect by (prior pid)=id and prior pid>10 and 1=0;
select t1.id,t1.pid,t1.name from test_hcb_ptb t1 start with id=141 connect by (prior pid)=id and prior pid>10 and 1=0;
explain select t1.id,t1.pid,t1.name from test_hcb_ptb t1 start with id=141 connect by (prior pid)=id and prior pid>10 and null;
select t1.id,t1.pid,t1.name from test_hcb_ptb t1 start with id=141 connect by (prior pid)=id and prior pid>10 and null;
/* connect by level/rownum 不支持not并且in 数据不准确 */
create table core_060(id varchar);
insert into core_060 values ('a'),('b'),('c');
SELECT id,level FROM core_060 CONNECT BY level in (1,2);
SELECT id,level FROM core_060 CONNECT BY not (level>2);
SELECT id,level FROM core_060 CONNECT BY cast(level as number(38,0))<3;
drop table core_060;
/* 存在子查询时，随着数据递归层数的增加，性能下降明显 */
create table t_customer(id int, pid int,num int,depth int);
-- verify nestloop can be material-optimized
set enable_hashjoin = off;
set enable_mergejoin = off;
explain
select * from ( select * from t_customer where id<1200040 and id>=1200000) start with id=1200010 connect by prior id=pid;
select * from ( select * from t_customer where id<1200040 and id>=1200000) start with id=1200010 connect by prior id=pid;
reset enable_hashjoin;
reset enable_mergejoin;
-- verify nestloop can be material-optimized
set enable_nestloop = off;
set enable_mergejoin = off;
explain
select * from ( select * from t_customer where id<1200040 and id>=1200000) start with id=1200010 connect by prior id=pid;
select * from ( select * from t_customer where id<1200040 and id>=1200000) start with id=1200010 connect by prior id=pid;
reset enable_nestloop;
reset enable_mergejoin;
-- verify mergejoin is no need to be material-optimized
set enable_hashjoin = off;
set enable_nestloop = off;
explain
select * from ( select * from t_customer where id<1200040 and id>=1200000) start with id=1200010 connect by prior id=pid;
select * from ( select * from t_customer where id<1200040 and id>=1200000) start with id=1200010 connect by prior id=pid;
reset enable_mergejoin;
reset enable_nestloop;
reset enable_hashjoin;
drop table t_customer;
-- test correlated sublink
create table test_place as select id, name, tex from test_hcb_ptb;
select t1.id,t1.pid,t1.name from test_hcb_ptb t1 start with not exists(select * from test_place where id=t1.id and id !=141) connect by prior pid=id;
drop table test_place;
-- test where quals pushdown
drop table if exists brand_sw3 cascade;
create table brand_sw3
(
mfg varchar(500) primary key ,
brand_cd varchar(500) ,
brand_name varchar(100) ,
brand_party_id number(18,10) NULL,c1 serial
);
drop table if exists usview17_sw3 cascade;
create table usview17_sw3
(
brand_party_id numeric(18,2) ,
sales_tran_id numeric(12,5) ,
item_qty numeric(5,0) ,
mkb_cost_amt numeric(19,4) ,
mkb_exp numeric
);
SELECT MAX(t2.brand_party_id)-COUNT(t2.sales_tran_id)
FROM brand_sw3 t1,usview17_sw3 t2
WHERE t1.brand_name=PRIOR t1.brand_name
AND PRIOR t1.brand_cd IS NOT NULL
START WITH t1.mfg=t1.brand_name
CONNECT BY NOCYCLE PRIOR t1.mfg
BETWEEN t1.brand_name
AND PRIOR t1.brand_name ;
SELECT MAX(t2.brand_party_id)-COUNT(t2.sales_tran_id)
FROM brand_sw3 t1,usview17_sw3 t2
where t1.brand_cd IS NOT NULL CONNECT BY rownum < 3;
drop table if exists brand_sw3 cascade;
drop table if exists usview17_sw3 cascade;
create table sw_test1(c0 int);
create table sw_test2(c0 text);
select * from sw_test1,sw_test2 where true connect by true;
drop table sw_test1;
drop table sw_test2;

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set client_min_messages = error;
set search_path=swtest;
SET CLIENT_ENCODING='UTF8';
--accepted cases
explain (costs off)
select * from test_area CONNECT BY LEVEL <= LENGTH('SOME TEXT');
explain (costs off)
select *, LEVEL from test_area CONNECT BY LEVEL <= LENGTH('SOME TEXT');
explain (costs off)
select * from test_area CONNECT BY ROWNUM <= LENGTH('SOME TEXT');
explain (costs off)
select *, ROWNUM from test_area CONNECT BY ROWNUM <= LENGTH('SOME TEXT');
explain (costs off)
select * from test_area CONNECT BY LEVEL < LENGTH('SOME TEXT');
explain (costs off)
select *, LEVEL from test_area CONNECT BY LEVEL < LENGTH('SOME TEXT');
explain (costs off)
select * from test_area CONNECT BY ROWNUM < LENGTH('SOME TEXT');
explain (costs off)
select *, ROWNUM from test_area CONNECT BY ROWNUM < LENGTH('SOME TEXT');
--rejected cases
explain (costs off)
select *, LEVEL from test_area CONNECT BY LEVEL > LENGTH('SOME TEXT');
explain (costs off)
select *, LEVEL from test_area CONNECT BY LEVEL >= LENGTH('SOME TEXT');
explain (costs off)
select * from test_area CONNECT BY APPLE > LENGTH('SOME TEXT');
explain (costs off)
select * from test_area CONNECT BY APPLE < LENGTH('SOME TEXT');
explain (costs off)
select * from test_area CONNECT BY APPLE <= LENGTH('SOME TEXT');

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set current_schema=swtest;
drop table if exists swtest.test_area;
drop table if exists swtest.test_area2;
drop table if exists swtest.t1;
drop table if exists swtest.t2;
drop table if exists swtest.test_hcb_ptb;
drop table if exists swtest.test_hcb_fqb;
drop table if exists swtest.test_sublink;
drop table if exists swtest.test_hcb_ptbc;
drop table if exists swtest.test_swcb_a;
drop table if exists swtest.trait_value;
drop table if exists swtest.offers_20050701;
drop table if exists swtest.brand;
drop schema if exists swtest cascade;

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set client_min_messages = error;
set search_path=swtest;
SET CLIENT_ENCODING='UTF8';
--signle table columns test
explain (costs off)
select * from t1 start with id = 1 connect by prior id = pid;
select * from t1 start with id = 1 connect by prior id = pid;
explain (costs off)
select * from t1 start with t1.id = 1 connect by prior t1.id = t1.pid;
select * from t1 start with t1.id = 1 connect by prior t1.id = t1.pid;
explain (costs off)
select * from t1 as test start with test.id = 1 connect by prior test.id = test.pid;
select * from t1 as test start with test.id = 1 connect by prior test.id = test.pid;
explain (costs off)
select * from t1 start with id = 1 connect by prior id = pid order by id desc;
select * from t1 start with id = 1 connect by prior id = pid order by id desc;
explain (costs off)
select * from t1 start with id IN (select id from t2 where id = 1) connect by prior id = pid order by id desc;
select * from t1 start with id IN (select id from t2 where id = 1) connect by prior id = pid order by id desc;
explain (costs off) select t1.id, t1.pid, t1.name from t1 start with id = 1 connect by prior id = pid;
select t1.id, t1.pid, t1.name from t1 start with id = 1 connect by prior id = pid;
explain (costs off) select sum(name) from t1 start with id = 1 connect by prior id = pid group by id, pid;
select sum(name) from t1 start with id = 1 connect by prior id = pid group by id, pid;
explain (costs off) select * from t1 start with id = 1 connect by prior id = pid and id IN (select id from t2);
select * from t1 start with id = 1 connect by prior id = pid and id IN (select id from t2);
explain (costs off) select * from t1 start with id = 1 and id is not NULL connect by prior id = pid;
select * from t1 start with id = 1 and id is not NULL connect by prior id = pid;
explain (costs off)
select *
from
(select t1.id id, t1.pid pid, t1.name name from t1
union
select t1.id id, t1.pid pid, t1.name name from t1) as test
start with test.id = 1
connect by prior test.id = test.pid;
select *
from
(select t1.id id, t1.pid pid, t1.name name from t1
union
select t1.id id, t1.pid pid, t1.name name from t1) as test
start with test.id = 1
connect by prior test.id = test.pid;
explain (costs off)
select *
from
(select *
from(select t1.id id, t1.pid pid, t1.name name from t1
union
select t1.id id, t1.pid pid, t1.name name from t1) as test
start with test.id = 1
connect by prior test.id = test.pid) as tt
CONNECT BY PRIOR tt.id = tt.pid
START WITH tt.id = 1;
select *
from
(select *
from(select t1.id id, t1.pid pid, t1.name name from t1
union
select t1.id id, t1.pid pid, t1.name name from t1) as test
start with test.id = 1
connect by prior test.id = test.pid) as tt
CONNECT BY PRIOR tt.id = tt.pid
START WITH tt.id = 1;
--test correlated sublink in targetlist
explain select b.id, (select count(a.id) from t1 a where a.pid = b.id) c from t1 b
start with b.id=1 connect by prior b.id = b.pid;
explain select * from t1 as test
where not exists (select 1 from t1 where test.id = t1.id)
start with test.id = 1 connect by prior test.id = test.pid;
--multiple tables case
explain (costs off) select * from t1, t2 where t1.id = t2.id start with t1.id = t2.id and t1.id = 1 connect by prior t1.id = t1.pid;
explain (costs off) select * from t1 join t2 on t1.id = t2.id start with t1.id = t2.id and t1.id = 1 connect by prior t1.id = t1.pid;
explain (costs off) select * from t1, (select * from t2) as test where t1.id = test.id start with t1.id = test.id and t1.id = 1 connect by prior t1.id = t1.pid;
explain (costs off) select id, (select id from t2 start with t2.id = t1.id connect by t2.id = t1.id limit 1) from t1 where id = 1;
--unsupport case
select prior id cc from t1 start with id = 1 connect by prior id = pid;
create INCREMENTAL MATERIALIZED view mv as select * from t1 start with id=141 connect by prior id=pid;

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drop schema if exists swtest cascade;
create schema swtest;
set current_schema=swtest;
drop table if exists swtest.test_area;
drop table if exists swtest.test_area2;
drop table if exists swtest.t1;
drop table if exists swtest.t2;
drop table if exists swtest.test_hcb_ptb;
drop table if exists swtest.test_hcb_fqb;
drop table if exists swtest.test_sublink;
drop table if exists swtest.test_hcb_ptbc;
drop table if exists swtest.test_swcb_a;
drop table if exists swtest.trait_value;
drop table if exists swtest.offers_20050701;
drop table if exists swtest.brand;
create table swtest.test_area(id int4,name text, fatherid int4, name_desc text);
insert into swtest.test_area values (1, '中国', 0, 'China');
insert into swtest.test_area values (2, '湖南省',1 , 'Hunan');
insert into swtest.test_area values (3, '广东省',1 , 'Guangdong');
insert into swtest.test_area values (4, '海南省',1 , 'Hainan');
insert into swtest.test_area values (5, '河北省',1 , 'Hebei');
insert into swtest.test_area values (6, '河南省',1 , 'Henan');
insert into swtest.test_area values (7, '山东省',1 , 'Shandong');
insert into swtest.test_area values (8, '湖北省',1 , 'Hubei');
insert into swtest.test_area values (9, '江苏省',1 , 'Jiangsu');
insert into swtest.test_area values (10,'深圳市',3 , 'Shenzhen');
insert into swtest.test_area values (11,'长沙市',2 , 'Changsha');
insert into swtest.test_area values (22,'祁北县',13, 'Qibei');
insert into swtest.test_area values (12,'南山区',10, 'Nanshan');
insert into swtest.test_area values (21,'祁西县',13, 'Qixi');
insert into swtest.test_area values (13,'衡阳市',2 , 'Hengyang');
insert into swtest.test_area values (14,'耒阳市',13, 'Leiyang');
insert into swtest.test_area values (15,'龙岗区',10, 'Longgang');
insert into swtest.test_area values (16,'福田区',10, 'Futian');
insert into swtest.test_area values (17,'宝安区',10, 'Baoan');
insert into swtest.test_area values (19,'祁东县',13, 'Qidong');
insert into swtest.test_area values (18,'常宁市',13, 'Changning');
insert into swtest.test_area values (20,'祁南县',13, 'Qinan');
create table swtest.test_area2(id int4, id2 text, name text, fatherid int4, fatherid2 text, name_desc text);
insert into swtest.test_area2 values (1, 'A', '中国', 0, '', 'China');
insert into swtest.test_area2 values (2, 'B', '湖南省',1 , 'A', 'Hunan');
insert into swtest.test_area2 values (3, 'C', '广东省',1 , 'A', 'Guangdong');
insert into swtest.test_area2 values (4, 'D', '海南省',1 , 'A', 'Hainan');
insert into swtest.test_area2 values (5, 'E', '河北省',1 , 'A', 'Hebei');
insert into swtest.test_area2 values (6, 'F', '河南省',1 , 'A', 'Henan');
insert into swtest.test_area2 values (7, 'G', '山东省',1 , 'A', 'Shandong');
insert into swtest.test_area2 values (8, 'H', '湖北省',1 , 'A', 'Hubei');
insert into swtest.test_area2 values (9, 'I', '江苏省',1 , 'A', 'Jiangsu');
insert into swtest.test_area2 values (10, 'J', '深圳市',3 , 'C', 'Shenzhen');
insert into swtest.test_area2 values (11, 'K', '长沙市',2 , 'B', 'Changsha');
insert into swtest.test_area2 values (22, 'L', '祁北县',13, 'O', 'Qibei');
insert into swtest.test_area2 values (12, 'M', '南山区',10, 'J', 'Nanshan');
insert into swtest.test_area2 values (21, 'N', '祁西县',13, 'O', 'Qixi');
insert into swtest.test_area2 values (13, 'O', '衡阳市',2 , 'B', 'Hengyang');
insert into swtest.test_area2 values (14, 'P', '耒阳市',13, 'O', 'Leiyang');
insert into swtest.test_area2 values (15, 'Q', '龙岗区',10, 'J', 'Longgang');
insert into swtest.test_area2 values (16, 'R', '福田区',10, 'J', 'Futian');
insert into swtest.test_area2 values (17, 'S', '宝安区',10, 'J', 'Baoan');
insert into swtest.test_area2 values (19, 'T', '祁东县',13, 'O', 'Qidong');
insert into swtest.test_area2 values (18, 'U', '常宁市',13, 'O', 'Changning');
insert into swtest.test_area2 values (20, 'V', '祁南县',13, 'O', 'Qinan');
create table swtest.t1(id int, pid int, name text);
insert into swtest.t1 values(1, 0, '1');
insert into swtest.t1 values(2, 1, '2');
insert into swtest.t1 values(3, 0, '3');
insert into swtest.t1 values(4, 1, '4');
insert into swtest.t1 values(5, 2, '5');
insert into swtest.t1 values(6, 3, '6');
insert into swtest.t1 values(7, 4, '7');
insert into swtest.t1 values(8, 4, '8');
insert into swtest.t1 values(9, 7, '9');
create table swtest.t2(id int, pid int, name text);
insert into swtest.t2 values(1, 0, '1');
insert into swtest.t2 values(2, 1, '2');
insert into swtest.t2 values(3, 0, '3');
insert into swtest.t2 values(4, 1, '4');
insert into swtest.t2 values(5, 2, '5');
insert into swtest.t2 values(6, 3, '6');
insert into swtest.t2 values(7, 4, '7');
insert into swtest.t2 values(8, 4, '8');
insert into swtest.t2 values(9, 7, '9');
CREATE TABLE swtest.test_hcb_ptb(ID INT,CHA CHAR(10),VCH VARCHAR2(10),TEX TEXT,DAT DATE,TIM TIME,TIS TIMESTAMP,NAME VARCHAR2(80),PID INT,PCHA CHAR(10),PVCH VARCHAR2(10),PTEX TEXT,PDAT DATE,PTIM TIME,PTIS TIMESTAMP);
CREATE TABLE swtest.TEST_HCB_FQB(ID INT,CHA CHAR(10),VCH VARCHAR2(10),TEX TEXT,DAT DATE,TIM TIME,TIS TIMESTAMP,NAME VARCHAR2(80),PID INT,PCHA CHAR(10),PVCH VARCHAR2(10),PTEX TEXT,PDAT DATE,PTIM TIME,PTIS TIMESTAMP);
CREATE TABLE swtest.TEST_SUBLINK(ID INT,VCH VARCHAR2(10));
INSERT INTO swtest.TEST_HCB_FQB VALUES( 1 , 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12' ,'中国' , 0, '0' , '0' , '0' , '2000-12-12 12:12:12', '00:00:01', '2000-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 11 , 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01' ,'江苏省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 12 , 'ab' , 'ab' , 'ab' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01' ,'山东省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 13 , 'ac' , 'ac' , 'ac' , '2021-01-01 01:01:02', '01:01:02', '2021-01-01 01:01:02' ,'安徽省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 14 , 'ad' , 'ad' , 'ad' , '2021-01-01 01:01:03', '01:01:03', '2021-01-01 01:01:03' ,'河南省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 15 , 'ae' , 'ae' , 'ae' , '2021-01-01 01:01:05', '01:01:05', '2021-01-01 01:01:05' ,'河北省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 16 , 'af' , 'af' , 'af' , '2021-01-01 01:01:06', '01:01:06', '2021-01-01 01:01:06' ,'湖南省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 17 , 'ag' , 'ag' , 'ag' , '2021-01-01 01:01:07', '01:01:07', '2021-01-01 01:01:07' ,'湖北省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 18 , 'ah' , 'ah' , 'ah' , '2021-01-01 01:01:08', '01:01:08', '2021-01-01 01:01:08' ,'贵州省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES( 19 , 'ai' , 'ai' , 'ai' , '2021-01-01 01:01:09', '01:01:09', '2021-01-01 01:01:09' ,'武汉省', 1, 'a' , 'a' , 'a' , '2021-12-12 12:12:12', '12:12:12', '2021-12-12 12:12:12');
INSERT INTO swtest.TEST_HCB_FQB VALUES(111 , 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10' ,'南京市', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(112 , 'aab', 'aab', 'aab', '2021-01-01 01:01:11', '01:01:11', '2021-01-01 01:01:11' ,'宿迁市', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(113 , 'aac', 'aac', 'aac', '2021-01-01 01:01:12', '01:01:12', '2021-01-01 01:01:12' ,'徐州市', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(114 , 'aad', 'aad', 'aad', '2021-01-01 01:01:13', '01:01:13', '2021-01-01 01:01:13' ,'苏州市', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(115 , 'aae', 'aae', 'aae', '2021-01-01 01:01:14', '01:01:14', '2021-01-01 01:01:14' ,'盐城市', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(116 , 'aaf', 'aaf', 'aaf', '2021-01-01 01:01:15', '01:01:15', '2021-01-01 01:01:15' ,'无锡市', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(117 , 'aag', 'aag', 'aag', '2021-01-01 01:01:16', '01:01:16', '2021-01-01 01:01:16' ,'常州市', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(118 , 'aah', 'aah', 'aah', '2021-01-01 01:01:17', '01:01:17', '2021-01-01 01:01:17' ,'连云港', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(119 , 'aai', 'aai', 'aai', '2021-01-01 01:01:18', '01:01:18', '2021-01-01 01:01:18' ,'泰州市', 11, 'aa' , 'aa' , 'aa' , '2021-01-01 01:01:01', '01:01:01', '2021-01-01 01:01:01');
INSERT INTO swtest.TEST_HCB_FQB VALUES(121 , 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20' ,'江宁区', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(122 , 'abb', 'abb', 'abb', '2021-01-01 01:01:21', '01:01:21', '2021-01-01 01:01:21' ,'雨花台', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(123 , 'abc', 'abc', 'abc', '2021-01-01 01:01:22', '01:01:22', '2021-01-01 01:01:22' ,'鼓楼区', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(124 , 'abd', 'abd', 'abd', '2021-01-01 01:01:23', '01:01:23', '2021-01-01 01:01:23' ,'玄武区', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(125 , 'abe', 'abe', 'abe', '2021-01-01 01:01:24', '01:01:24', '2021-01-01 01:01:24' ,'建邺区', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(126 , 'abf', 'abf', 'abf', '2021-01-01 01:01:25', '01:01:25', '2021-01-01 01:01:25' ,'秦淮区', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(127 , 'abg', 'abg', 'abg', '2021-01-01 01:01:26', '01:01:26', '2021-01-01 01:01:26' ,'浦口区', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(128 , 'abh', 'abh', 'abh', '2021-01-01 01:01:27', '01:01:27', '2021-01-01 01:01:27' ,'浦口区', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(129 , 'abi', 'abi', 'abi', '2021-01-01 01:01:28', '01:01:28', '2021-01-01 01:01:28' ,'六合区', 111, 'aaa', 'aaa', 'aaa', '2021-01-01 01:01:10', '01:01:10', '2021-01-01 01:01:10');
INSERT INTO swtest.TEST_HCB_FQB VALUES(131 , 'aca', 'aca', 'aca', '2021-01-01 01:01:30', '01:01:30', '2021-01-01 01:01:30' ,'东山街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
INSERT INTO swtest.TEST_HCB_FQB VALUES(132 , 'acb', 'acb', 'acb', '2021-01-01 01:01:31', '01:01:31', '2021-01-01 01:01:31' ,'秣陵街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
INSERT INTO swtest.TEST_HCB_FQB VALUES(133 , 'acc', 'acc', 'acc', '2021-01-01 01:01:32', '01:01:32', '2021-01-01 01:01:32' ,'汤山街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
INSERT INTO swtest.TEST_HCB_FQB VALUES(134 , 'acd', 'acd', 'acd', '2021-01-01 01:01:33', '01:01:33', '2021-01-01 01:01:33' ,'淳化街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
INSERT INTO swtest.TEST_HCB_FQB VALUES(135 , 'ace', 'ace', 'ace', '2021-01-01 01:01:34', '01:01:34', '2021-01-01 01:01:34' ,'禄口街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
INSERT INTO swtest.TEST_HCB_FQB VALUES(136 , 'acf', 'acf', 'acf', '2021-01-01 01:01:35', '01:01:35', '2021-01-01 01:01:35' ,'江宁街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
INSERT INTO swtest.TEST_HCB_FQB VALUES(137 , 'acg', 'acg', 'acg', '2021-01-01 01:01:36', '01:01:36', '2021-01-01 01:01:36' ,'谷里街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
INSERT INTO swtest.TEST_HCB_FQB VALUES(138 , 'ach', 'ach', 'ach', '2021-01-01 01:01:37', '01:01:37', '2021-01-01 01:01:37' ,'湖熟街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
INSERT INTO swtest.TEST_HCB_FQB VALUES(139 , 'aci', 'aci', 'aci', '2021-01-01 01:01:38', '01:01:38', '2021-01-01 01:01:38' ,'横溪街', 121, 'aba', 'aba', 'aba', '2021-01-01 01:01:20', '01:01:20', '2021-01-01 01:01:20');
insert into swtest.test_hcb_ptb values( 1,'a',' a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12','中国', 0,'0','0','0','2000-12-12 12:12:12','00:00:01','2000-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 11,'aa',' aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01','江苏省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 12,'ab',' ab','ab','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01','山东省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 13,'ac',' ac','ac','2021-01-01 01:01:02','01:01:02','2021-01-01 01:01:02','安徽省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 14,'ad',' ad','ad','2021-01-01 01:01:03','01:01:03','2021-01-01 01:01:03','河南省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 15,'ae',' ae','ae','2021-01-01 01:01:05','01:01:05','2021-01-01 01:01:05','河北省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 16,'af',' af','af','2021-01-01 01:01:06','01:01:06','2021-01-01 01:01:06','湖南省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 17,'ag',' ag','ag','2021-01-01 01:01:07','01:01:07','2021-01-01 01:01:07','湖北省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 18,'ah',' ah','ah','2021-01-01 01:01:08','01:01:08','2021-01-01 01:01:08','贵州省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values( 19,'ai',' ai','ai','2021-01-01 01:01:09','01:01:09','2021-01-01 01:01:09','武汉省', 1,'a','a','a','2021-12-12 12:12:12','12:12:12','2021-12-12 12:12:12' );
insert into swtest.test_hcb_ptb values(111,'aaa',' aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10','南京市', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(112,'aab',' aab','aab','2021-01-01 01:01:11','01:01:11','2021-01-01 01:01:11','宿迁市', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(113,'aac',' aac','aac','2021-01-01 01:01:12','01:01:12','2021-01-01 01:01:12','徐州市', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(114,'aad',' aad','aad','2021-01-01 01:01:13','01:01:13','2021-01-01 01:01:13','苏州市', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(115,'aae',' aae','aae','2021-01-01 01:01:14','01:01:14','2021-01-01 01:01:14','盐城市', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(117,'aag',' aag','aag','2021-01-01 01:01:16','01:01:16','2021-01-01 01:01:16','常州市', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(116,'aaf',' aaf','aaf','2021-01-01 01:01:15','01:01:15','2021-01-01 01:01:15','无锡市', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(118,'aah',' aah','aah','2021-01-01 01:01:17','01:01:17','2021-01-01 01:01:17','连云港', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(119,'aai',' aai','aai','2021-01-01 01:01:18','01:01:18','2021-01-01 01:01:18','泰州市', 11,'aa','aa','aa','2021-01-01 01:01:01','01:01:01','2021-01-01 01:01:01' );
insert into swtest.test_hcb_ptb values(121,'aba',' aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20','江宁区', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(122,'abb',' abb','abb','2021-01-01 01:01:21','01:01:21','2021-01-01 01:01:21','雨花台', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(123,'abc',' abc','abc','2021-01-01 01:01:22','01:01:22','2021-01-01 01:01:22','鼓楼区', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(124,'abd',' abd','abd','2021-01-01 01:01:23','01:01:23','2021-01-01 01:01:23','玄武区', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(125,'abe',' abe','abe','2021-01-01 01:01:24','01:01:24','2021-01-01 01:01:24','建邺区', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(126,'abf',' abf','abf','2021-01-01 01:01:25','01:01:25','2021-01-01 01:01:25','秦淮区', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(127,'abg',' abg','abg','2021-01-01 01:01:26','01:01:26','2021-01-01 01:01:26','浦口区', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(128,'abh',' abh','abh','2021-01-01 01:01:27','01:01:27','2021-01-01 01:01:27','浦口区', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(129,'abi',' abi','abi','2021-01-01 01:01:28','01:01:28','2021-01-01 01:01:28','六合区', 111,'aaa','aaa','aaa','2021-01-01 01:01:10','01:01:10','2021-01-01 01:01:10' );
insert into swtest.test_hcb_ptb values(131,'aca',' aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30','东山街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(132,'acb',' acb','acb','2021-01-01 01:01:31','01:01:31','2021-01-01 01:01:31','秣陵街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(133,'acc',' acc','acc','2021-01-01 01:01:32','01:01:32','2021-01-01 01:01:32','汤山街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(135,'ace',' ace','ace','2021-01-01 01:01:34','01:01:34','2021-01-01 01:01:34','禄口街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(134,'acd',' acd','acd','2021-01-01 01:01:33','01:01:33','2021-01-01 01:01:33','淳化街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(136,'acf',' acf','acf','2021-01-01 01:01:35','01:01:35','2021-01-01 01:01:35','江宁街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(137,'acg',' acg','acg','2021-01-01 01:01:36','01:01:36','2021-01-01 01:01:36','谷里街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(138,'ach',' ach','ach','2021-01-01 01:01:37','01:01:37','2021-01-01 01:01:37','湖熟街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(139,'aci',' aci','aci','2021-01-01 01:01:38','01:01:38','2021-01-01 01:01:38','横溪街', 121,'aba','aba','aba','2021-01-01 01:01:20','01:01:20','2021-01-01 01:01:20' );
insert into swtest.test_hcb_ptb values(141,'ada',' ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40','江南摩卡', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(142,'adb',' adb','adb','2021-01-01 01:01:41','01:01:41','2021-01-01 01:01:41','四季云顶', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(143,'adc',' adc','adc','2021-01-01 01:01:42','01:01:42','2021-01-01 01:01:42','盛世江南', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(144,'add',' add','add','2021-01-01 01:01:43','01:01:43','2021-01-01 01:01:43','七里香都', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(145,'ade',' ade','ade','2021-01-01 01:01:44','01:01:44','2021-01-01 01:01:44','西山枫林', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(146,'adf',' adf','adf','2021-01-01 01:01:45','01:01:45','2021-01-01 01:01:45','醉墨小镇', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(147,'adg',' adg','adg','2021-01-01 01:01:46','01:01:46','2021-01-01 01:01:46','布拉格调', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(148,'adh',' adh','adh','2021-01-01 01:01:47','01:01:47','2021-01-01 01:01:47','清幽别院', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(149,'adi',' adi','adi','2021-01-01 01:01:48','01:01:48','2021-01-01 01:01:48','璀璨天城', 131,'aca','aca','aca','2021-01-01 01:01:30','01:01:30','2021-01-01 01:01:30' );
insert into swtest.test_hcb_ptb values(151,'aea',' aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50','江南一楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(152,'aeb',' aeb','aeb','2021-01-01 01:01:51','01:01:51','2021-01-01 01:01:51','江南二楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(153,'aec',' aec','aec','2021-01-01 01:01:52','01:01:52','2021-01-01 01:01:52','江南三楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(154,'aed',' aed','aed','2021-01-01 01:01:53','01:01:53','2021-01-01 01:01:53','江南四楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(155,'aee',' aee','aee','2021-01-01 01:01:54','01:01:54','2021-01-01 01:01:54','江南五楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(156,'aef',' aef','aef','2021-01-01 01:01:55','01:01:55','2021-01-01 01:01:55','江南六楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(157,'aeg',' aeg','aeg','2021-01-01 01:01:56','01:01:56','2021-01-01 01:01:56','江南七楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(158,'aeh',' aeh','aeh','2021-01-01 01:01:57','01:01:57','2021-01-01 01:01:57','江南八楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(159,'aei',' aei','aei','2021-01-01 01:01:58','01:01:58','2021-01-01 01:01:58','江南九楼', 141,'ada','ada','ada','2021-01-01 01:01:40','01:01:40','2021-01-01 01:01:40' );
insert into swtest.test_hcb_ptb values(161,'afa',' afa','afa','2021-01-01 01:02:50','01:02:50','2021-01-01 01:02:50','第一单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
insert into swtest.test_hcb_ptb values(162,'afb',' afb','afb','2021-01-01 01:02:51','01:02:51','2021-01-01 01:02:51','第二单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
insert into swtest.test_hcb_ptb values(163,'afc',' afc','afc','2021-01-01 01:02:52','01:02:52','2021-01-01 01:02:52','第三单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
insert into swtest.test_hcb_ptb values(164,'afd',' afd','afd','2021-01-01 01:02:53','01:02:53','2021-01-01 01:02:53','第四单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
insert into swtest.test_hcb_ptb values(165,'afe',' afe','afe','2021-01-01 01:02:54','01:02:54','2021-01-01 01:02:54','第五单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
insert into swtest.test_hcb_ptb values(166,'aff',' aff','aff','2021-01-01 01:02:55','01:02:55','2021-01-01 01:02:55','第六单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
insert into swtest.test_hcb_ptb values(167,'afg',' afg','afg','2021-01-01 01:02:56','01:02:56','2021-01-01 01:02:56','第七单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
insert into swtest.test_hcb_ptb values(168,'afh',' afh','afh','2021-01-01 01:02:57','01:02:57','2021-01-01 01:02:57','第八单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
insert into swtest.test_hcb_ptb values(169,'afi',' afi','afi','2021-01-01 01:02:58','01:02:58','2021-01-01 01:02:58','第九单元', 151,'aea','aea','aea','2021-01-01 01:01:50','01:01:50','2021-01-01 01:01:50' );
CREATE TABLE swtest.test_hcb_ptbc(ID INT,CHA CHAR(10),VCH VARCHAR2(10),TEX TEXT,DAT DATE,TIM TIME,TIS TIMESTAMP,NAME VARCHAR2(80),PID INT,PCHA CHAR(10),PVCH VARCHAR2(10),PTEX TEXT,PDAT DATE,PTIM TIME,PTIS TIMESTAMP
) with (orientation = column);
insert into test_hcb_ptbc select * from test_hcb_ptb;
CREATE TABLE swtest.test_swcb_a (ID varchar2(10) PRIMARY KEY,NAME varchar2(100),PID varchar2(10));
INSERT INTO swtest.test_swcb_a VALUES ('00001', '中国', '-1');
INSERT INTO swtest.test_swcb_a VALUES ('00011', '陕西', '00001');
INSERT INTO swtest.test_swcb_a VALUES ('00012', '贵州', '00001');
INSERT INTO swtest.test_swcb_a VALUES ('00013', '河南', '00001');
INSERT INTO swtest.test_swcb_a VALUES ('00111', '西安', '00011');
INSERT INTO swtest.test_swcb_a VALUES ('00112', '咸阳', '00011');
INSERT INTO swtest.test_swcb_a VALUES ('00113', '延安', '00011');
INSERT INTO swtest.test_swcb_a VALUES ('00114', '华县', '00013');
INSERT INTO swtest.test_swcb_a VALUES ('00115', '河内', '00016');
INSERT INTO swtest.test_swcb_a VALUES ('00116', '清迈', '00015');
INSERT INTO swtest.test_swcb_a VALUES ('00117', '仰光', '00017');
INSERT INTO swtest.test_swcb_a VALUES ('00118', '纽约', '00120');
INSERT INTO swtest.test_swcb_a VALUES ('00119', '费城', '00118');
INSERT INTO swtest.test_swcb_a VALUES ('00120', '华盛顿', '00119');
create table swtest.trait_value(TRAIT_VALUE_CD VARCHAR(50)primary key, TRAIT_VALUE_DESC VARCHAR(250) NULL, TRAIT_VAL VARCHAR(100) NULL, UOM_CD VARCHAR(50) NULL, TRAIT_CD VARCHAR(50) NULL,c1 serial);
INSERT INTO swtest.TRAIT_VALUE VALUES ('A', NULL, 'A' , 'A' , 'A');
INSERT INTO swtest.TRAIT_VALUE VALUES ('B', 'B' , NULL, 'B' , 'B');
INSERT INTO swtest.TRAIT_VALUE VALUES ('C', 'C' , 'C' , NULL, NULL);
INSERT INTO swtest.TRAIT_VALUE VALUES ('D', NULL, NULL, NULL, 'D');
INSERT INTO swtest.TRAIT_VALUE VALUES ('E', 'E' , ' AA' , 'E' , 'E');
INSERT INTO swtest.TRAIT_VALUE VALUES ('F', ' ' , 'AA ' , 'F' , 'F');
create table swtest.offers_20050701(PROMO_ID VARCHAR(10), PARTY_ID VARCHAR(10) NULL, LOCATION_ID number(17,0) NULL);
create table swtest.brand(a int default 2, mfg varchar(500), brand_cd varchar(500), brand_name varchar(100), brand_party_id number(18,10) NULL);
analyze;

169
src/test/regress/sql/sw_siblings.sql Normal file
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@ -0,0 +1,169 @@
set client_min_messages = error;
set search_path=swtest;
SET CLIENT_ENCODING='UTF8';
/*
*
* START WITH .... CONNECT BY基础测试用例
*
* 测试用例表数
* openGauss=# select * from swtest.test_area;
* id | name | fatherid | name_desc
* ----+--------+----------+-----------
* 1 | 中国 | 0 | china
* 2 | 湖南省 | 1 | hunan
* 3 | 广东省 | 1 | guangdong
* 4 | 海南省 | 1 | hainan
* 5 | 河北省 | 1 | hebei
* 6 | 河南省 | 1 | henan
* 7 | 山东省 | 1 | shandong
* 8 | 湖北省 | 1 | hubei
* 9 | 江苏省 | 1 | jiangsu
* 10 | 深圳市 | 3 | shenzhen
* 11 | 长沙市 | 2 | changsha
* 22 | 祁北县 | 13 | qibei
* 12 | 南山区 | 10 | nanshan
* 21 | 祁西县 | 13 | qixi
* 13 | 衡阳市 | 2 | hengyang
* 14 | 耒阳市 | 13 | leiyang
* 15 | 龙岗区 | 10 | longgang
* 16 | 福田区 | 10 | futian
* 17 | 宝安区 | 10 | baoan
* 19 | 祁东县 | 13 | qidong
* 18 | 常宁市 | 13 | changning
* 20 | 祁南县 | 13 | qinan
*
*/
/* case 1.1 test root->leaf order siblings by id asc
* expect order: 1 2 11 13 14 18 19 20 21 22 3 10 12 15 16 17 4 5 6 7 8 9
*/
EXPLAIN (costs off)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id;
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id;
/* case 1.2 test root->leaf order siblings by id desc
* expect order: 1 9 8 7 6 5 4 3 10 17 16 15 12 2 13 22 21 20 19 18 14 11
*/
EXPLAIN (costs off)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id desc;
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id desc;
/* case 1.3 test double_root->leaf order siblings by id asc
* expect order: 10 12 15 16 17 13 14 18 19 20 21 22
*/
EXPLAIN (costs off)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '衡阳市' or name = '深圳市'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id;
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '衡阳市' or name = '深圳市'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id;
/* case 1.4 test double_root->leaf order siblings by id desc
* expect order: 13 22 21 20 19 18 14 10 17 16 15 12
*/
EXPLAIN (costs off)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '衡阳市' or name = '深圳市'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id desc;
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '衡阳市' or name = '深圳市'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id desc;
/* case 1.5 test leaf->root order siblings by id asc
* expect order: 18 13 2 1
*/
EXPLAIN (costs off)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '常宁市'
CONNECT BY id = prior fatherid
ORDER SIBLINGS BY id;
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '常宁市'
CONNECT BY id = prior fatherid
ORDER SIBLINGS BY id;
/* case 1.6 test leaf->root order siblings by id desc
* expect order: 18 13 2 1
*/
EXPLAIN (costs off)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '常宁市'
CONNECT BY id = prior fatherid
ORDER SIBLINGS BY id desc;
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '常宁市'
CONNECT BY id = prior fatherid
ORDER SIBLINGS BY id desc;
/* case 1.7
* test order siblings by const
* expect order: 1 2 11 13 14 18 19 20 21 22 3 10 12 15 16 17 4 5 6 7 8 9
*/
EXPLAIN (costs off)
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY 1;
SELECT *, LEVEL, connect_by_isleaf, connect_by_iscycle, connect_by_root(name_desc), SYS_CONNECT_BY_PATH(name, '@') cpath
FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY 1;
/* case 1.8++ test explain for multiple order siblings column */
EXPLAIN (costs off)
SELECT * FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id, name, name_desc;
EXPLAIN (costs off)
SELECT * FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id desc, name desc , name_desc desc;
EXPLAIN (costs off)
SELECT * FROM test_area
START WITH name = '中国'
CONNECT BY prior id = fatherid
ORDER SIBLINGS BY id desc, name, name_desc desc;