613 lines
26 KiB
Go
613 lines
26 KiB
Go
// Copyright 2019 PingCAP, Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package executor_test
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/json"
|
|
"fmt"
|
|
"regexp"
|
|
"strconv"
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/pingcap/tidb/config"
|
|
"github.com/pingcap/tidb/errno"
|
|
"github.com/pingcap/tidb/parser/auth"
|
|
plannercore "github.com/pingcap/tidb/planner/core"
|
|
"github.com/pingcap/tidb/session"
|
|
"github.com/pingcap/tidb/testkit"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func TestExplainPrivileges(t *testing.T) {
|
|
store := testkit.CreateMockStore(t)
|
|
se, err := session.CreateSession4Test(store)
|
|
require.NoError(t, err)
|
|
require.NoError(t, se.Auth(&auth.UserIdentity{Username: "root", Hostname: "%"}, nil, nil))
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.SetSession(se)
|
|
|
|
tk.MustExec("create database explaindatabase")
|
|
tk.MustExec("use explaindatabase")
|
|
tk.MustExec("create table t (id int)")
|
|
tk.MustExec("create view v as select * from t")
|
|
tk.MustExec(`create user 'explain'@'%'`)
|
|
|
|
tk1 := testkit.NewTestKit(t, store)
|
|
se, err = session.CreateSession4Test(store)
|
|
require.NoError(t, err)
|
|
require.NoError(t, se.Auth(&auth.UserIdentity{Username: "explain", Hostname: "%"}, nil, nil))
|
|
tk1.SetSession(se)
|
|
|
|
tk.MustExec(`grant select on explaindatabase.v to 'explain'@'%'`)
|
|
tk1.MustQuery("show databases").Check(testkit.Rows("INFORMATION_SCHEMA", "explaindatabase"))
|
|
|
|
tk1.MustExec("use explaindatabase")
|
|
tk1.MustQuery("select * from v")
|
|
err = tk1.ExecToErr("explain format = 'brief' select * from v")
|
|
require.Equal(t, plannercore.ErrViewNoExplain.Error(), err.Error())
|
|
|
|
tk.MustExec(`grant show view on explaindatabase.v to 'explain'@'%'`)
|
|
tk1.MustQuery("explain format = 'brief' select * from v")
|
|
|
|
tk.MustExec(`revoke select on explaindatabase.v from 'explain'@'%'`)
|
|
|
|
err = tk1.ExecToErr("explain format = 'brief' select * from v")
|
|
require.Equal(t, plannercore.ErrTableaccessDenied.GenWithStackByArgs("SELECT", "explain", "%", "v").Error(), err.Error())
|
|
|
|
// https://github.com/pingcap/tidb/issues/34326
|
|
tk.MustExec("create table t1 (i int)")
|
|
tk.MustExec("create table t2 (j int)")
|
|
tk.MustExec("create table t3 (k int, secret int)")
|
|
|
|
tk.MustExec("create view v1 as select * from t1")
|
|
tk.MustExec("create view v2 as select * from v1, t2")
|
|
tk.MustExec("create view v3 as select k from t3")
|
|
|
|
tk.MustExec("grant select, show view on explaindatabase.v2 to 'explain'@'%'")
|
|
tk.MustExec("grant show view on explaindatabase.v1 to 'explain'@'%'")
|
|
tk.MustExec("grant select, show view on explaindatabase.t3 to 'explain'@'%'")
|
|
tk.MustExec("grant select, show view on explaindatabase.v3 to 'explain'@'%'")
|
|
|
|
tk1.MustGetErrMsg("explain select * from v1", "[planner:1142]SELECT command denied to user 'explain'@'%' for table 'v1'")
|
|
tk1.MustGetErrCode("explain select * from v2", errno.ErrViewNoExplain)
|
|
tk1.MustQuery("explain select * from t3")
|
|
tk1.MustQuery("explain select * from v3")
|
|
}
|
|
|
|
func TestExplainCartesianJoin(t *testing.T) {
|
|
store := testkit.CreateMockStore(t)
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t (v int)")
|
|
|
|
cases := []struct {
|
|
sql string
|
|
isCartesianJoin bool
|
|
}{
|
|
{"explain format = 'brief' select * from t t1, t t2", true},
|
|
{"explain format = 'brief' select * from t t1 where exists (select 1 from t t2 where t2.v > t1.v)", true},
|
|
{"explain format = 'brief' select * from t t1 where exists (select 1 from t t2 where t2.v in (t1.v+1, t1.v+2))", true},
|
|
{"explain format = 'brief' select * from t t1, t t2 where t1.v = t2.v", false},
|
|
}
|
|
for _, ca := range cases {
|
|
rows := tk.MustQuery(ca.sql).Rows()
|
|
ok := false
|
|
for _, row := range rows {
|
|
str := fmt.Sprintf("%v", row)
|
|
if strings.Contains(str, "CARTESIAN") {
|
|
ok = true
|
|
}
|
|
}
|
|
|
|
require.Equal(t, ca.isCartesianJoin, ok)
|
|
}
|
|
}
|
|
|
|
func TestExplainWrite(t *testing.T) {
|
|
store := testkit.CreateMockStore(t)
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t (a int)")
|
|
tk.MustQuery("explain analyze insert into t select 1")
|
|
tk.MustQuery("select * from t").Check(testkit.Rows("1"))
|
|
tk.MustQuery("explain analyze update t set a=2 where a=1")
|
|
tk.MustQuery("select * from t").Check(testkit.Rows("2"))
|
|
tk.MustQuery("explain format = 'brief' insert into t select 1")
|
|
tk.MustQuery("select * from t").Check(testkit.Rows("2"))
|
|
tk.MustQuery("explain analyze insert into t select 1")
|
|
tk.MustQuery("explain analyze replace into t values (3)")
|
|
tk.MustQuery("select * from t order by a").Check(testkit.Rows("1", "2", "3"))
|
|
}
|
|
|
|
func TestExplainAnalyzeMemory(t *testing.T) {
|
|
store := testkit.CreateMockStore(t)
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t (v int, k int, key(k))")
|
|
tk.MustExec("insert into t values (1, 1), (1, 1), (1, 1), (1, 1), (1, 1)")
|
|
|
|
checkMemoryInfo(t, tk, "explain analyze select * from t order by v")
|
|
checkMemoryInfo(t, tk, "explain analyze select * from t order by v limit 5")
|
|
checkMemoryInfo(t, tk, "explain analyze select /*+ HASH_JOIN(t1, t2) */ t1.k from t t1, t t2 where t1.v = t2.v+1")
|
|
checkMemoryInfo(t, tk, "explain analyze select /*+ MERGE_JOIN(t1, t2) */ t1.k from t t1, t t2 where t1.k = t2.k+1")
|
|
checkMemoryInfo(t, tk, "explain analyze select /*+ INL_JOIN(t1, t2) */ t1.k from t t1, t t2 where t1.k = t2.k and t1.v=1")
|
|
checkMemoryInfo(t, tk, "explain analyze select /*+ INL_HASH_JOIN(t1, t2) */ t1.k from t t1, t t2 where t1.k = t2.k and t1.v=1")
|
|
checkMemoryInfo(t, tk, "explain analyze select /*+ INL_MERGE_JOIN(t1, t2) */ t1.k from t t1, t t2 where t1.k = t2.k and t1.v=1")
|
|
checkMemoryInfo(t, tk, "explain analyze select sum(k) from t group by v")
|
|
checkMemoryInfo(t, tk, "explain analyze select sum(v) from t group by k")
|
|
checkMemoryInfo(t, tk, "explain analyze select * from t")
|
|
checkMemoryInfo(t, tk, "explain analyze select k from t use index(k)")
|
|
checkMemoryInfo(t, tk, "explain analyze select * from t use index(k)")
|
|
checkMemoryInfo(t, tk, "explain analyze select v+k from t")
|
|
}
|
|
|
|
func checkMemoryInfo(t *testing.T, tk *testkit.TestKit, sql string) {
|
|
memCol := 6
|
|
ops := []string{"Join", "Reader", "Top", "Sort", "LookUp", "Projection", "Selection", "Agg"}
|
|
rows := tk.MustQuery(sql).Rows()
|
|
for _, row := range rows {
|
|
strs := make([]string, len(row))
|
|
for i, c := range row {
|
|
strs[i] = c.(string)
|
|
}
|
|
if strings.Contains(strs[3], "cop") {
|
|
continue
|
|
}
|
|
|
|
shouldHasMem := false
|
|
for _, op := range ops {
|
|
if strings.Contains(strs[0], op) {
|
|
shouldHasMem = true
|
|
break
|
|
}
|
|
}
|
|
|
|
if shouldHasMem {
|
|
require.NotEqual(t, "N/A", strs[memCol])
|
|
} else {
|
|
require.Equal(t, "N/A", strs[memCol])
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestMemoryAndDiskUsageAfterClose(t *testing.T) {
|
|
store := testkit.CreateMockStore(t)
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t (v int, k int, key(k))")
|
|
batch := 128
|
|
limit := tk.Session().GetSessionVars().MaxChunkSize*2 + 10
|
|
var buf bytes.Buffer
|
|
for i := 0; i < limit; {
|
|
buf.Reset()
|
|
_, err := buf.WriteString("insert into t values ")
|
|
require.NoError(t, err)
|
|
for j := 0; j < batch && i < limit; i, j = i+1, j+1 {
|
|
if j > 0 {
|
|
_, err = buf.WriteString(", ")
|
|
require.NoError(t, err)
|
|
}
|
|
_, err = buf.WriteString(fmt.Sprintf("(%v,%v)", i, i))
|
|
require.NoError(t, err)
|
|
}
|
|
tk.MustExec(buf.String())
|
|
}
|
|
SQLs := []string{"select v+abs(k) from t",
|
|
"select v from t where abs(v) > 0",
|
|
"select v from t order by v",
|
|
"select count(v) from t", // StreamAgg
|
|
"select count(v) from t group by v", // HashAgg
|
|
}
|
|
for _, sql := range SQLs {
|
|
tk.MustQuery(sql)
|
|
require.Equal(t, int64(0), tk.Session().GetSessionVars().StmtCtx.MemTracker.BytesConsumed())
|
|
require.Greater(t, tk.Session().GetSessionVars().StmtCtx.MemTracker.MaxConsumed(), int64(0))
|
|
require.Equal(t, int64(0), tk.Session().GetSessionVars().StmtCtx.DiskTracker.BytesConsumed())
|
|
}
|
|
}
|
|
|
|
func TestExplainAnalyzeExecutionInfo(t *testing.T) {
|
|
store := testkit.CreateMockStore(t)
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t (v int, k int, key(k))")
|
|
tk.MustExec("insert into t values (1, 1), (1, 1), (1, 1), (1, 1), (1, 1)")
|
|
|
|
checkExecutionInfo(t, tk, "explain analyze select * from t order by v")
|
|
checkExecutionInfo(t, tk, "explain analyze select * from t order by v limit 5")
|
|
checkExecutionInfo(t, tk, "explain analyze select /*+ HASH_JOIN(t1, t2) */ t1.k from t t1, t t2 where t1.v = t2.v+1")
|
|
checkExecutionInfo(t, tk, "explain analyze select /*+ MERGE_JOIN(t1, t2) */ t1.k from t t1, t t2 where t1.k = t2.k+1")
|
|
checkExecutionInfo(t, tk, "explain analyze select /*+ INL_JOIN(t1, t2) */ t1.k from t t1, t t2 where t1.k = t2.k and t1.v=1")
|
|
checkExecutionInfo(t, tk, "explain analyze select /*+ INL_HASH_JOIN(t1, t2) */ t1.k from t t1, t t2 where t1.k = t2.k and t1.v=1")
|
|
checkExecutionInfo(t, tk, "explain analyze select /*+ INL_MERGE_JOIN(t1, t2) */ t1.k from t t1, t t2 where t1.k = t2.k and t1.v=1")
|
|
checkExecutionInfo(t, tk, "explain analyze select sum(k) from t group by v")
|
|
checkExecutionInfo(t, tk, "explain analyze select sum(v) from t group by k")
|
|
checkExecutionInfo(t, tk, "explain analyze select * from t")
|
|
checkExecutionInfo(t, tk, "explain analyze select k from t use index(k)")
|
|
checkExecutionInfo(t, tk, "explain analyze select * from t use index(k)")
|
|
checkExecutionInfo(t, tk, "explain analyze with recursive cte(a) as (select 1 union select a + 1 from cte where a < 1000) select * from cte;")
|
|
|
|
tk.MustExec("set @@foreign_key_checks=0")
|
|
tk.MustExec("CREATE TABLE IF NOT EXISTS nation ( N_NATIONKEY BIGINT NOT NULL,N_NAME CHAR(25) NOT NULL,N_REGIONKEY BIGINT NOT NULL,N_COMMENT VARCHAR(152),PRIMARY KEY (N_NATIONKEY));")
|
|
tk.MustExec("CREATE TABLE IF NOT EXISTS part ( P_PARTKEY BIGINT NOT NULL,P_NAME VARCHAR(55) NOT NULL,P_MFGR CHAR(25) NOT NULL,P_BRAND CHAR(10) NOT NULL,P_TYPE VARCHAR(25) NOT NULL,P_SIZE BIGINT NOT NULL,P_CONTAINER CHAR(10) NOT NULL,P_RETAILPRICE DECIMAL(15,2) NOT NULL,P_COMMENT VARCHAR(23) NOT NULL,PRIMARY KEY (P_PARTKEY));")
|
|
tk.MustExec("CREATE TABLE IF NOT EXISTS supplier ( S_SUPPKEY BIGINT NOT NULL,S_NAME CHAR(25) NOT NULL,S_ADDRESS VARCHAR(40) NOT NULL,S_NATIONKEY BIGINT NOT NULL,S_PHONE CHAR(15) NOT NULL,S_ACCTBAL DECIMAL(15,2) NOT NULL,S_COMMENT VARCHAR(101) NOT NULL,PRIMARY KEY (S_SUPPKEY),CONSTRAINT FOREIGN KEY SUPPLIER_FK1 (S_NATIONKEY) references nation(N_NATIONKEY));")
|
|
tk.MustExec("CREATE TABLE IF NOT EXISTS partsupp ( PS_PARTKEY BIGINT NOT NULL,PS_SUPPKEY BIGINT NOT NULL,PS_AVAILQTY BIGINT NOT NULL,PS_SUPPLYCOST DECIMAL(15,2) NOT NULL,PS_COMMENT VARCHAR(199) NOT NULL,PRIMARY KEY (PS_PARTKEY,PS_SUPPKEY),CONSTRAINT FOREIGN KEY PARTSUPP_FK1 (PS_SUPPKEY) references supplier(S_SUPPKEY),CONSTRAINT FOREIGN KEY PARTSUPP_FK2 (PS_PARTKEY) references part(P_PARTKEY));")
|
|
tk.MustExec("CREATE TABLE IF NOT EXISTS orders ( O_ORDERKEY BIGINT NOT NULL,O_CUSTKEY BIGINT NOT NULL,O_ORDERSTATUS CHAR(1) NOT NULL,O_TOTALPRICE DECIMAL(15,2) NOT NULL,O_ORDERDATE DATE NOT NULL,O_ORDERPRIORITY CHAR(15) NOT NULL,O_CLERK CHAR(15) NOT NULL,O_SHIPPRIORITY BIGINT NOT NULL,O_COMMENT VARCHAR(79) NOT NULL,PRIMARY KEY (O_ORDERKEY),CONSTRAINT FOREIGN KEY ORDERS_FK1 (O_CUSTKEY) references customer(C_CUSTKEY));")
|
|
tk.MustExec("CREATE TABLE IF NOT EXISTS lineitem ( L_ORDERKEY BIGINT NOT NULL,L_PARTKEY BIGINT NOT NULL,L_SUPPKEY BIGINT NOT NULL,L_LINENUMBER BIGINT NOT NULL,L_QUANTITY DECIMAL(15,2) NOT NULL,L_EXTENDEDPRICE DECIMAL(15,2) NOT NULL,L_DISCOUNT DECIMAL(15,2) NOT NULL,L_TAX DECIMAL(15,2) NOT NULL,L_RETURNFLAG CHAR(1) NOT NULL,L_LINESTATUS CHAR(1) NOT NULL,L_SHIPDATE DATE NOT NULL,L_COMMITDATE DATE NOT NULL,L_RECEIPTDATE DATE NOT NULL,L_SHIPINSTRUCT CHAR(25) NOT NULL,L_SHIPMODE CHAR(10) NOT NULL,L_COMMENT VARCHAR(44) NOT NULL,PRIMARY KEY (L_ORDERKEY,L_LINENUMBER),CONSTRAINT FOREIGN KEY LINEITEM_FK1 (L_ORDERKEY) references orders(O_ORDERKEY),CONSTRAINT FOREIGN KEY LINEITEM_FK2 (L_PARTKEY,L_SUPPKEY) references partsupp(PS_PARTKEY, PS_SUPPKEY));")
|
|
|
|
checkExecutionInfo(t, tk, "select nation, o_year, sum(amount) as sum_profit from ( select n_name as nation, extract(year from o_orderdate) as o_year, l_extendedprice * (1 - l_discount) - ps_supplycost * l_quantity as amount from part, supplier, lineitem, partsupp, orders, nation where s_suppkey = l_suppkey and ps_suppkey = l_suppkey and ps_partkey = l_partkey and p_partkey = l_partkey and o_orderkey = l_orderkey and s_nationkey = n_nationkey and p_name like '%dim%' ) as profit group by nation, o_year order by nation, o_year desc;")
|
|
|
|
tk.MustExec("drop table if exists nation")
|
|
tk.MustExec("drop table if exists part")
|
|
tk.MustExec("drop table if exists supplier")
|
|
tk.MustExec("drop table if exists partsupp")
|
|
tk.MustExec("drop table if exists orders")
|
|
tk.MustExec("drop table if exists lineitem")
|
|
}
|
|
|
|
func checkExecutionInfo(t *testing.T, tk *testkit.TestKit, sql string) {
|
|
executionInfoCol := 4
|
|
rows := tk.MustQuery(sql).Rows()
|
|
for _, row := range rows {
|
|
strs := make([]string, len(row))
|
|
for i, c := range row {
|
|
strs[i] = c.(string)
|
|
}
|
|
require.NotEqual(t, "time:0s, loops:0, rows:0", strs[executionInfoCol])
|
|
}
|
|
}
|
|
|
|
func TestExplainAnalyzeActRowsNotEmpty(t *testing.T) {
|
|
store := testkit.CreateMockStore(t)
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t (a int, b int, index (a))")
|
|
tk.MustExec("insert into t values (1, 1)")
|
|
|
|
checkActRowsNotEmpty(t, tk, "explain analyze select * from t t1, t t2 where t1.b = t2.a and t1.b = 2333")
|
|
}
|
|
|
|
func checkActRowsNotEmpty(t *testing.T, tk *testkit.TestKit, sql string) {
|
|
actRowsCol := 2
|
|
rows := tk.MustQuery(sql).Rows()
|
|
for _, row := range rows {
|
|
strs := make([]string, len(row))
|
|
for i, c := range row {
|
|
strs[i] = c.(string)
|
|
}
|
|
require.NotEqual(t, "", strs[actRowsCol])
|
|
}
|
|
}
|
|
|
|
func checkActRows(t *testing.T, tk *testkit.TestKit, sql string, expected []string) {
|
|
actRowsCol := 2
|
|
rows := tk.MustQuery("explain analyze " + sql).Rows()
|
|
require.Equal(t, len(expected), len(rows))
|
|
for id, row := range rows {
|
|
strs := make([]string, len(row))
|
|
for i, c := range row {
|
|
strs[i] = c.(string)
|
|
}
|
|
|
|
require.Equal(t, expected[id], strs[actRowsCol], fmt.Sprintf("error comparing %s", sql))
|
|
}
|
|
}
|
|
|
|
func TestCheckActRowsWithUnistore(t *testing.T) {
|
|
defer config.RestoreFunc()()
|
|
config.UpdateGlobal(func(conf *config.Config) {
|
|
conf.EnableCollectExecutionInfo = true
|
|
})
|
|
store := testkit.CreateMockStore(t)
|
|
// testSuite1 use default mockstore which is unistore
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("set tidb_cost_model_version=2")
|
|
tk.MustExec("drop table if exists t_unistore_act_rows")
|
|
tk.MustExec("create table t_unistore_act_rows(a int, b int, index(a, b))")
|
|
tk.MustExec("insert into t_unistore_act_rows values (1, 0), (1, 0), (2, 0), (2, 1)")
|
|
tk.MustExec("analyze table t_unistore_act_rows")
|
|
tk.MustExec("set @@tidb_merge_join_concurrency= 5;")
|
|
|
|
type testStruct struct {
|
|
sql string
|
|
expected []string
|
|
}
|
|
|
|
tests := []testStruct{
|
|
{
|
|
sql: "select * from t_unistore_act_rows",
|
|
expected: []string{"4", "4"},
|
|
},
|
|
{
|
|
sql: "select * from t_unistore_act_rows where a > 1",
|
|
expected: []string{"2", "2"},
|
|
},
|
|
{
|
|
sql: "select * from t_unistore_act_rows where a > 1 and b > 0",
|
|
expected: []string{"1", "1", "2"},
|
|
},
|
|
{
|
|
sql: "select b from t_unistore_act_rows",
|
|
expected: []string{"4", "4"},
|
|
},
|
|
{
|
|
sql: "select * from t_unistore_act_rows where b > 0",
|
|
expected: []string{"1", "1", "4"},
|
|
},
|
|
{
|
|
sql: "select count(*) from t_unistore_act_rows",
|
|
expected: []string{"1", "1", "1", "4"},
|
|
},
|
|
{
|
|
sql: "select count(*) from t_unistore_act_rows group by a",
|
|
expected: []string{"2", "2", "2", "4"},
|
|
},
|
|
{
|
|
sql: "select count(*) from t_unistore_act_rows group by b",
|
|
expected: []string{"2", "4", "4"},
|
|
},
|
|
{
|
|
sql: "with cte(a) as (select a from t_unistore_act_rows) select (select 1 from cte limit 1) from cte;",
|
|
expected: []string{"4", "4", "4", "4", "4"},
|
|
},
|
|
{
|
|
sql: "select a, row_number() over (partition by b) from t_unistore_act_rows;",
|
|
expected: []string{"4", "4", "4", "4", "4", "4", "4"},
|
|
},
|
|
{
|
|
sql: "select /*+ merge_join(t1, t2) */ * from t_unistore_act_rows t1 join t_unistore_act_rows t2 on t1.b = t2.b;",
|
|
expected: []string{"10", "10", "4", "4", "4", "4", "4", "4", "4", "4", "4", "4"},
|
|
},
|
|
}
|
|
|
|
// Default RPC encoding may cause statistics explain result differ and then the test unstable.
|
|
tk.MustExec("set @@tidb_enable_chunk_rpc = on")
|
|
|
|
for _, test := range tests {
|
|
checkActRows(t, tk, test.sql, test.expected)
|
|
}
|
|
}
|
|
|
|
func TestExplainAnalyzeCTEMemoryAndDiskInfo(t *testing.T) {
|
|
store := testkit.CreateMockStore(t)
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t (a int)")
|
|
tk.MustExec("insert into t with recursive cte(a) as (select 1 union select a + 1 from cte where a < 1000) select * from cte;")
|
|
|
|
rows := tk.MustQuery("explain analyze with recursive cte(a) as (select 1 union select a + 1 from cte where a < 1000)" +
|
|
" select * from cte, t;").Rows()
|
|
|
|
require.NotEqual(t, "N/A", rows[4][7].(string))
|
|
require.Equal(t, "0 Bytes", rows[4][8].(string))
|
|
|
|
tk.MustExec("set @@tidb_mem_quota_query=10240;")
|
|
rows = tk.MustQuery("explain analyze with recursive cte(a) as (select 1 union select a + 1 from cte where a < 1000)" +
|
|
" select * from cte, t;").Rows()
|
|
|
|
require.NotEqual(t, "N/A", rows[4][7].(string))
|
|
require.NotEqual(t, "N/A", rows[4][8].(string))
|
|
}
|
|
|
|
func TestExplainStatementsSummary(t *testing.T) {
|
|
store := testkit.CreateMockStore(t)
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustQuery("desc select * from information_schema.statements_summary").Check(testkit.Rows(
|
|
`MemTableScan_4 10000.00 root table:STATEMENTS_SUMMARY `))
|
|
tk.MustQuery("desc select * from information_schema.statements_summary where digest is null").Check(testkit.RowsWithSep("|",
|
|
`Selection_5|8000.00|root| isnull(Column#5)`, `└─MemTableScan_6|10000.00|root|table:STATEMENTS_SUMMARY|`))
|
|
tk.MustQuery("desc select * from information_schema.statements_summary where digest = 'abcdefg'").Check(testkit.RowsWithSep(" ",
|
|
`MemTableScan_5 10000.00 root table:STATEMENTS_SUMMARY digests: ["abcdefg"]`))
|
|
tk.MustQuery("desc select * from information_schema.statements_summary where digest in ('a','b','c')").Check(testkit.RowsWithSep(" ",
|
|
`MemTableScan_5 10000.00 root table:STATEMENTS_SUMMARY digests: ["a","b","c"]`))
|
|
}
|
|
|
|
func TestFix29401(t *testing.T) {
|
|
store := testkit.CreateMockStore(t)
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists tt123;")
|
|
tk.MustExec(`CREATE TABLE tt123 (
|
|
id int(11) NOT NULL,
|
|
a bigint(20) DEFAULT NULL,
|
|
b char(20) DEFAULT NULL,
|
|
c datetime DEFAULT NULL,
|
|
d double DEFAULT NULL,
|
|
e json DEFAULT NULL,
|
|
f decimal(40,6) DEFAULT NULL,
|
|
PRIMARY KEY (id) /*T![clustered_index] CLUSTERED */,
|
|
KEY a (a),
|
|
KEY b (b),
|
|
KEY c (c),
|
|
KEY d (d),
|
|
KEY f (f)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin;`)
|
|
tk.MustExec(" explain select /*+ inl_hash_join(t1) */ * from tt123 t1 join tt123 t2 on t1.b=t2.e;")
|
|
}
|
|
|
|
func TestIssue35296(t *testing.T) {
|
|
store := testkit.CreateMockStore(t)
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t(a int, b int , c int, d int, e int,index ia(a), index ib(b), index ic(c), index idd(d), index ie(e));")
|
|
|
|
rows := tk.MustQuery("explain analyze select * from t where a = 10 or b = 30 or c = 10 or d = 1 or e = 90;").Rows()
|
|
|
|
require.Contains(t, rows[0][0], "IndexMerge")
|
|
require.NotRegexp(t, "^time:0s", rows[1][5])
|
|
require.NotRegexp(t, "^time:0s", rows[2][5])
|
|
require.NotRegexp(t, "^time:0s", rows[3][5])
|
|
require.NotRegexp(t, "^time:0s", rows[4][5])
|
|
require.NotRegexp(t, "^time:0s", rows[5][5])
|
|
}
|
|
|
|
func TestIssue35911(t *testing.T) {
|
|
store := testkit.CreateMockStore(t)
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t1")
|
|
tk.MustExec("drop table if exists t2")
|
|
tk.MustExec("create table t1(a int, b int);")
|
|
tk.MustExec("create table t2(a int, b int, index ia(a));")
|
|
tk.MustExec("insert into t1 value (1,1), (2,2), (3,3), (4,4), (5,5), (6,6);")
|
|
tk.MustExec("insert into t2 value (1,1), (2,2), (3,3), (4,4), (5,5), (6,6);")
|
|
tk.MustExec("set @@tidb_executor_concurrency = 5;")
|
|
|
|
// case 1 of #35911
|
|
tk.MustExec("set @@tidb_enable_parallel_apply = 0;")
|
|
rows := tk.MustQuery("explain analyze select * from t1 where exists (select tt1.* from (select * from t2 where a = t1.b) as tt1 join (select * from t2 where a = t1.b) as tt2 on tt1.b = tt2.b);").Rows()
|
|
|
|
extractTime, err := regexp.Compile("^time:(.*?),")
|
|
require.NoError(t, err)
|
|
timeStr1 := extractTime.FindStringSubmatch(rows[4][5].(string))[1]
|
|
time1, err := time.ParseDuration(timeStr1)
|
|
require.NoError(t, err)
|
|
timeStr2 := extractTime.FindStringSubmatch(rows[5][5].(string))[1]
|
|
time2, err := time.ParseDuration(timeStr2)
|
|
require.NoError(t, err)
|
|
// The duration of IndexLookUp should be longer than its build side child
|
|
require.LessOrEqual(t, time2, time1)
|
|
|
|
// case 2 of #35911
|
|
tk.MustExec("set @@tidb_enable_parallel_apply = 1;")
|
|
rows = tk.MustQuery("explain analyze select * from t1 where exists (select tt1.* from (select * from t2 where a = t1.b) as tt1 join (select * from t2 where a = t1.b) as tt2 on tt1.b = tt2.b);").Rows()
|
|
|
|
extractConcurrency, err := regexp.Compile(`table_task: [{].*concurrency: (\d+)[}]`)
|
|
require.NoError(t, err)
|
|
concurrencyStr := extractConcurrency.FindStringSubmatch(rows[4][5].(string))[1]
|
|
concurrency, err := strconv.ParseInt(concurrencyStr, 10, 64)
|
|
require.NoError(t, err)
|
|
// To be consistent with other operators, we should not aggregate the concurrency in the runtime stats.
|
|
require.EqualValues(t, 5, concurrency)
|
|
}
|
|
|
|
func TestIssue35105(t *testing.T) {
|
|
store := testkit.CreateMockStore(t)
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t (a int primary key)")
|
|
tk.MustExec("insert into t values (2)")
|
|
tk.MustExec("set @@tidb_constraint_check_in_place=1")
|
|
require.Error(t, tk.ExecToErr("explain analyze insert into t values (1), (2), (3)"))
|
|
tk.MustQuery("select * from t").Check(testkit.Rows("2"))
|
|
}
|
|
|
|
func flatJSONPlan(j *plannercore.ExplainInfoForEncode) (res []*plannercore.ExplainInfoForEncode) {
|
|
if j == nil {
|
|
return
|
|
}
|
|
res = append(res, j)
|
|
for _, child := range j.SubOperators {
|
|
res = append(res, flatJSONPlan(child)...)
|
|
}
|
|
return
|
|
}
|
|
|
|
func TestExplainJSON(t *testing.T) {
|
|
store := testkit.CreateMockStore(t)
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t1, t2")
|
|
tk.MustExec("create table t1(id int, key(id))")
|
|
tk.MustExec("create table t2(id int, key(id))")
|
|
cases := []string{
|
|
"select * from t1",
|
|
"select count(*) from t2",
|
|
"select * from t1, t2 where t1.id = t2.id",
|
|
"select /*+ merge_join(t1, t2)*/ * from t1, t2 where t1.id = t2.id",
|
|
"with top10 as ( select * from t1 order by id desc limit 10 ) select * from top10 where id in (1,2)",
|
|
"insert into t1 values(1)",
|
|
"delete from t2 where t2.id > 10",
|
|
"update t2 set id = 1 where id =2",
|
|
"select * from t1 where t1.id < (select sum(t2.id) from t2 where t2.id = t1.id)",
|
|
}
|
|
// test syntax
|
|
tk.MustExec("explain format = 'tidb_json' select * from t1")
|
|
tk.MustExec("explain format = tidb_json select * from t1")
|
|
tk.MustExec("explain format = 'TIDB_JSON' select * from t1")
|
|
tk.MustExec("explain format = TIDB_JSON select * from t1")
|
|
tk.MustExec("explain analyze format = 'tidb_json' select * from t1")
|
|
tk.MustExec("explain analyze format = tidb_json select * from t1")
|
|
tk.MustExec("explain analyze format = 'TIDB_JSON' select * from t1")
|
|
tk.MustExec("explain analyze format = TIDB_JSON select * from t1")
|
|
|
|
// explain
|
|
for _, sql := range cases {
|
|
jsonForamt := "explain format = tidb_json " + sql
|
|
rowForamt := "explain format = row " + sql
|
|
resJSON := tk.MustQuery(jsonForamt).Rows()
|
|
resRow := tk.MustQuery(rowForamt).Rows()
|
|
|
|
j := new([]*plannercore.ExplainInfoForEncode)
|
|
require.NoError(t, json.Unmarshal([]byte(resJSON[0][0].(string)), j))
|
|
var flatJSONRows []*plannercore.ExplainInfoForEncode
|
|
for _, row := range *j {
|
|
flatJSONRows = append(flatJSONRows, flatJSONPlan(row)...)
|
|
}
|
|
require.Equal(t, len(flatJSONRows), len(resRow))
|
|
|
|
for i, row := range resRow {
|
|
require.Contains(t, row[0], flatJSONRows[i].ID)
|
|
require.Equal(t, flatJSONRows[i].EstRows, row[1])
|
|
require.Equal(t, flatJSONRows[i].TaskType, row[2])
|
|
require.Equal(t, flatJSONRows[i].AccessObject, row[3])
|
|
require.Equal(t, flatJSONRows[i].OperatorInfo, row[4])
|
|
}
|
|
}
|
|
|
|
// explain analyze
|
|
for _, sql := range cases {
|
|
jsonForamt := "explain analyze format = tidb_json " + sql
|
|
rowForamt := "explain analyze format = row " + sql
|
|
resJSON := tk.MustQuery(jsonForamt).Rows()
|
|
resRow := tk.MustQuery(rowForamt).Rows()
|
|
|
|
j := new([]*plannercore.ExplainInfoForEncode)
|
|
require.NoError(t, json.Unmarshal([]byte(resJSON[0][0].(string)), j))
|
|
var flatJSONRows []*plannercore.ExplainInfoForEncode
|
|
for _, row := range *j {
|
|
flatJSONRows = append(flatJSONRows, flatJSONPlan(row)...)
|
|
}
|
|
require.Equal(t, len(flatJSONRows), len(resRow))
|
|
|
|
for i, row := range resRow {
|
|
require.Contains(t, row[0], flatJSONRows[i].ID)
|
|
require.Equal(t, flatJSONRows[i].EstRows, row[1])
|
|
require.Equal(t, flatJSONRows[i].ActRows, row[2])
|
|
require.Equal(t, flatJSONRows[i].TaskType, row[3])
|
|
require.Equal(t, flatJSONRows[i].AccessObject, row[4])
|
|
require.Equal(t, flatJSONRows[i].OperatorInfo, row[6])
|
|
// executeInfo, memory, disk maybe vary in multi execution
|
|
require.NotEqual(t, flatJSONRows[i].ExecuteInfo, "")
|
|
require.NotEqual(t, flatJSONRows[i].MemoryInfo, "")
|
|
require.NotEqual(t, flatJSONRows[i].DiskInfo, "")
|
|
}
|
|
}
|
|
}
|