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update rewrite rules

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* adjust re est cost for nestloop semi/anti join

* add threshold for cost base transform
This commit is contained in:
zs
2021-06-16 11:36:24 +08:00
committed by MizuhaHimuraki
parent cbeee6568e
commit 03001c1fe3
6 changed files with 70 additions and 84 deletions
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43
unittest/sql/optimizer/test_optimizer_outline.result
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@ -3003,17 +3003,15 @@ SQL: select t20.c1 from t20 join t0 where t0.c1 in (select t7.c1 from t7 join t8
========================================================
|ID|OPERATOR |NAME |EST. ROWS|COST |
--------------------------------------------------------
|0 |NESTED-LOOP JOIN CARTESIAN | |10000 |17490|
|1 | MERGE SEMI JOIN | |100 |10301|
|2 | SORT | |100 |198 |
|3 | TABLE SCAN |t0 |100 |90 |
|4 | SUBPLAN SCAN |VIEW1|10000 |8650 |
|5 | NESTED-LOOP JOIN CARTESIAN| |10000 |7270 |
|6 | TABLE SCAN |t7 |100 |88 |
|7 | MATERIAL | |100 |106 |
|8 | TABLE SCAN |t8 |100 |88 |
|9 | MATERIAL | |100 |113 |
|10| TABLE SCAN |t20 |100 |95 |
|0 |NESTED-LOOP JOIN CARTESIAN | |10000 |10934|
|1 | NESTED-LOOP SEMI JOIN | |100 |3745 |
|2 | TABLE SCAN |t0 |100 |90 |
|3 | SUBPLAN SCAN |VIEW1|1 |36 |
|4 | NESTED-LOOP JOIN CARTESIAN| |1 |36 |
|5 | TABLE GET |t7 |1 |36 |
|6 | TABLE SCAN |t8 |100 |88 |
|7 | MATERIAL | |100 |113 |
|8 | TABLE SCAN |t20 |100 |95 |
========================================================
Outputs & filters:
@ -3021,21 +3019,19 @@ Outputs & filters:
0 - output([t20.c1]), filter(nil),
conds(nil), nl_params_(nil)
1 - output([1]), filter(nil),
equal_conds([t0.c1 = VIEW1.c1]), other_conds(nil)
2 - output([t0.c1]), filter(nil), sort_keys([t0.c1, ASC])
3 - output([t0.c1]), filter(nil),
conds(nil), nl_params_([t0.c1])
2 - output([t0.c1]), filter(nil),
access([t0.c1]), partitions(p0)
4 - output([VIEW1.c1]), filter(nil),
3 - output([1]), filter(nil),
access([VIEW1.c1])
5 - output([t7.c1]), filter(nil),
4 - output([t7.c1]), filter(nil),
conds(nil), nl_params_(nil)
6 - output([t7.c1]), filter(nil),
5 - output([t7.c1]), filter(nil),
access([t7.c1]), partitions(p0)
7 - output([1]), filter(nil)
8 - output([1]), filter(nil),
6 - output([1]), filter(nil),
access([t8.c1]), partitions(p0)
9 - output([t20.c1]), filter(nil)
10 - output([t20.c1]), filter(nil),
7 - output([t20.c1]), filter(nil)
8 - output([t20.c1]), filter(nil),
access([t20.c1]), partitions(p0)
Outline Data:
@ -3045,11 +3041,12 @@ Outline Data:
LEADING(@"SEL$1" (("opt.t0"@"SEL$1" "VIEW1"@"SEL$1" )"opt.t20"@"SEL$1" ))
USE_NL(@"SEL$1" ("opt.t20"@"SEL$1" ))
USE_NL_MATERIALIZATION(@"SEL$1" ("opt.t20"@"SEL$1" ))
USE_MERGE(@"SEL$1" ("VIEW1"@"SEL$1" ))
USE_NL(@"SEL$1" ("VIEW1"@"SEL$1" ))
NO_USE_NL_MATERIALIZATION(@"SEL$1" ("VIEW1"@"SEL$1" ))
FULL(@"SEL$1" "opt.t0"@"SEL$1")
LEADING(@"SEL$2" ("opt.t7"@"SEL$2" "opt.t8"@"SEL$2" ))
USE_NL(@"SEL$2" ("opt.t8"@"SEL$2" ))
USE_NL_MATERIALIZATION(@"SEL$2" ("opt.t8"@"SEL$2" ))
NO_USE_NL_MATERIALIZATION(@"SEL$2" ("opt.t8"@"SEL$2" ))
FULL(@"SEL$2" "opt.t7"@"SEL$2")
FULL(@"SEL$2" "opt.t8"@"SEL$2")
FULL(@"SEL$1" "opt.t20"@"SEL$1")