1297 lines
51 KiB
Go
1297 lines
51 KiB
Go
// Copyright 2016 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package executor_test
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import (
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"crypto/tls"
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"fmt"
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"strconv"
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"strings"
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"sync/atomic"
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. "github.com/pingcap/check"
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"github.com/pingcap/tidb/domain"
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"github.com/pingcap/tidb/parser/auth"
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"github.com/pingcap/tidb/parser/model"
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"github.com/pingcap/tidb/parser/mysql"
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plannercore "github.com/pingcap/tidb/planner/core"
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"github.com/pingcap/tidb/session"
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txninfo "github.com/pingcap/tidb/session/txninfo"
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"github.com/pingcap/tidb/sessionctx/variable"
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"github.com/pingcap/tidb/util"
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"github.com/pingcap/tidb/util/israce"
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"github.com/pingcap/tidb/util/testkit"
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)
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func (s *testSuite1) TestPreparedNameResolver(c *C) {
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tk := testkit.NewTestKit(c, s.store)
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tk.MustExec("use test")
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tk.MustExec("drop table if exists t")
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tk.MustExec("create table t (id int, KEY id (id))")
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tk.MustExec("prepare stmt from 'select * from t limit ? offset ?'")
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_, err := tk.Exec("prepare stmt from 'select b from t'")
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c.Assert(err.Error(), Equals, "[planner:1054]Unknown column 'b' in 'field list'")
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_, err = tk.Exec("prepare stmt from '(select * FROM t) union all (select * FROM t) order by a limit ?'")
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c.Assert(err.Error(), Equals, "[planner:1054]Unknown column 'a' in 'order clause'")
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}
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// a 'create table' DDL statement should be accepted if it has no parameters.
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func (s *testSuite1) TestPreparedDDL(c *C) {
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tk := testkit.NewTestKit(c, s.store)
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tk.MustExec("use test")
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tk.MustExec("drop table if exists t")
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tk.MustExec("prepare stmt from 'create table t (id int, KEY id (id))'")
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}
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// TestUnsupportedStmtForPrepare is related to https://github.com/pingcap/tidb/issues/17412
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func (s *testSuite1) TestUnsupportedStmtForPrepare(c *C) {
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tk := testkit.NewTestKit(c, s.store)
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tk.MustExec("use test")
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tk.MustExec(`prepare stmt0 from "create table t0(a int primary key)"`)
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tk.MustGetErrCode(`prepare stmt1 from "execute stmt0"`, mysql.ErrUnsupportedPs)
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tk.MustGetErrCode(`prepare stmt2 from "deallocate prepare stmt0"`, mysql.ErrUnsupportedPs)
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tk.MustGetErrCode(`prepare stmt4 from "prepare stmt3 from 'create table t1(a int, b int)'"`, mysql.ErrUnsupportedPs)
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}
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func (s *testSuite1) TestIgnorePlanCache(c *C) {
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tk := testkit.NewTestKit(c, s.store)
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tk.MustExec("use test")
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tk.MustExec("drop table if exists t")
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tk.MustExec("create table t (id int primary key, num int)")
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tk.MustExec("insert into t values (1, 1)")
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tk.MustExec("insert into t values (2, 2)")
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tk.MustExec("insert into t values (3, 3)")
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tk.MustExec("prepare stmt from 'select /*+ IGNORE_PLAN_CACHE() */ * from t where id=?'")
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tk.MustExec("set @ignore_plan_doma = 1")
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tk.MustExec("execute stmt using @ignore_plan_doma")
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c.Assert(tk.Se.GetSessionVars().StmtCtx.UseCache, IsFalse)
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}
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func (s *testSerialSuite) TestPrepareStmtAfterIsolationReadChange(c *C) {
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if israce.RaceEnabled {
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c.Skip("race test for this case takes too long time")
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}
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tk := testkit.NewTestKitWithInit(c, s.store)
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tk.Se.Auth(&auth.UserIdentity{Username: "root", Hostname: "localhost", CurrentUser: true, AuthUsername: "root", AuthHostname: "%"}, nil, []byte("012345678901234567890"))
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orgEnable := plannercore.PreparedPlanCacheEnabled()
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defer func() {
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plannercore.SetPreparedPlanCache(orgEnable)
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}()
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plannercore.SetPreparedPlanCache(false) // requires plan cache disabled
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tk.MustExec("drop table if exists t")
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tk.MustExec("create table t(a int)")
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// create virtual tiflash replica.
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dom := domain.GetDomain(tk.Se)
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is := dom.InfoSchema()
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db, exists := is.SchemaByName(model.NewCIStr("test"))
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c.Assert(exists, IsTrue)
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for _, tblInfo := range db.Tables {
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if tblInfo.Name.L == "t" {
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tblInfo.TiFlashReplica = &model.TiFlashReplicaInfo{
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Count: 1,
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Available: true,
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}
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}
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}
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tk.MustExec("set @@session.tidb_isolation_read_engines='tikv'")
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tk.MustExec("set @@tidb_enable_collect_execution_info=0;")
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tk.MustExec("prepare stmt from \"select * from t\"")
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tk.MustQuery("execute stmt")
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tkProcess := tk.Se.ShowProcess()
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ps := []*util.ProcessInfo{tkProcess}
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tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
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rows := tk.MustQuery(fmt.Sprintf("explain for connection %d", tkProcess.ID)).Rows()
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c.Assert(rows[len(rows)-1][2], Equals, "cop[tikv]")
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tk.MustExec("set @@session.tidb_isolation_read_engines='tiflash'")
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tk.MustExec("execute stmt")
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tkProcess = tk.Se.ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
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rows = tk.MustQuery(fmt.Sprintf("explain for connection %d", tkProcess.ID)).Rows()
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c.Assert(rows[len(rows)-1][2], Equals, "cop[tiflash]")
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c.Assert(len(tk.Se.GetSessionVars().PreparedStmts), Equals, 1)
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c.Assert(tk.Se.GetSessionVars().PreparedStmts[1].(*plannercore.CachedPrepareStmt).NormalizedSQL, Equals, "select * from `t`")
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c.Assert(tk.Se.GetSessionVars().PreparedStmts[1].(*plannercore.CachedPrepareStmt).NormalizedPlan, Equals, "")
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}
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type mockSessionManager2 struct {
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se session.Session
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killed int32
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}
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func (sm *mockSessionManager2) ShowTxnList() []*txninfo.TxnInfo {
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panic("unimplemented!")
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}
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func (sm *mockSessionManager2) ShowProcessList() map[uint64]*util.ProcessInfo {
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pl := make(map[uint64]*util.ProcessInfo)
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if pi, ok := sm.GetProcessInfo(0); ok {
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pl[pi.ID] = pi
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}
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return pl
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}
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func (sm *mockSessionManager2) GetProcessInfo(id uint64) (pi *util.ProcessInfo, notNil bool) {
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pi = sm.se.ShowProcess()
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if pi != nil {
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notNil = true
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}
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return
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}
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func (sm *mockSessionManager2) Kill(connectionID uint64, query bool) {
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atomic.StoreInt32(&sm.killed, 1)
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atomic.StoreUint32(&sm.se.GetSessionVars().Killed, 1)
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}
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func (sm *mockSessionManager2) KillAllConnections() {}
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func (sm *mockSessionManager2) UpdateTLSConfig(cfg *tls.Config) {}
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func (sm *mockSessionManager2) ServerID() uint64 {
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return 1
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}
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var _ = SerialSuites(&testSuite12{&baseTestSuite{}})
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type testSuite12 struct {
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*baseTestSuite
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}
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func (s *testSuite12) TestPreparedStmtWithHint(c *C) {
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// see https://github.com/pingcap/tidb/issues/18535
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store, dom, err := newStoreWithBootstrap()
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c.Assert(err, IsNil)
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defer func() {
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store.Close()
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dom.Close()
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}()
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se, err := session.CreateSession4Test(store)
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c.Assert(err, IsNil)
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tk := testkit.NewTestKit(c, store)
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tk.Se = se
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sm := &mockSessionManager2{
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se: se,
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}
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se.SetSessionManager(sm)
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go dom.ExpensiveQueryHandle().SetSessionManager(sm).Run()
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tk.MustExec("prepare stmt from \"select /*+ max_execution_time(100) */ sleep(10)\"")
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tk.MustQuery("execute stmt").Check(testkit.Rows("1"))
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c.Check(atomic.LoadInt32(&sm.killed), Equals, int32(1))
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}
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func (s *testSerialSuite) TestPlanCacheClusterIndex(c *C) {
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store, dom, err := newStoreWithBootstrap()
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c.Assert(err, IsNil)
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tk := testkit.NewTestKit(c, store)
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defer func() {
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dom.Close()
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store.Close()
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}()
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orgEnable := plannercore.PreparedPlanCacheEnabled()
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defer func() {
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plannercore.SetPreparedPlanCache(orgEnable)
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}()
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plannercore.SetPreparedPlanCache(true)
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tk.MustExec("use test")
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tk.MustExec("drop table if exists t1")
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tk.Se.GetSessionVars().EnableClusteredIndex = variable.ClusteredIndexDefModeOn
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tk.MustExec("set @@tidb_enable_collect_execution_info=0;")
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tk.MustExec("create table t1(a varchar(20), b varchar(20), c varchar(20), primary key(a, b))")
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tk.MustExec("insert into t1 values('1','1','111'),('2','2','222'),('3','3','333')")
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// For table scan
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tk.MustExec(`prepare stmt1 from "select * from t1 where t1.a = ? and t1.b > ?"`)
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tk.MustExec("set @v1 = '1'")
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tk.MustExec("set @v2 = '0'")
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tk.MustQuery("execute stmt1 using @v1,@v2").Check(testkit.Rows("1 1 111"))
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tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("0"))
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tk.MustExec("set @v1 = '2'")
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tk.MustExec("set @v2 = '1'")
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tk.MustQuery("execute stmt1 using @v1,@v2").Check(testkit.Rows("2 2 222"))
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tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("1"))
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tk.MustExec("set @v1 = '3'")
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tk.MustExec("set @v2 = '2'")
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tk.MustQuery("execute stmt1 using @v1,@v2").Check(testkit.Rows("3 3 333"))
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tkProcess := tk.Se.ShowProcess()
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ps := []*util.ProcessInfo{tkProcess}
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tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
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rows := tk.MustQuery(fmt.Sprintf("explain for connection %d", tkProcess.ID)).Rows()
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c.Assert(strings.Index(rows[len(rows)-1][4].(string), `range:("3" "2","3" +inf]`), Equals, 0)
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// For point get
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tk.MustExec(`prepare stmt2 from "select * from t1 where t1.a = ? and t1.b = ?"`)
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tk.MustExec("set @v1 = '1'")
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tk.MustExec("set @v2 = '1'")
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tk.MustQuery("execute stmt2 using @v1,@v2").Check(testkit.Rows("1 1 111"))
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tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("0"))
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tk.MustExec("set @v1 = '2'")
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tk.MustExec("set @v2 = '2'")
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tk.MustQuery("execute stmt2 using @v1,@v2").Check(testkit.Rows("2 2 222"))
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tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("1"))
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tk.MustExec("set @v1 = '3'")
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tk.MustExec("set @v2 = '3'")
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tk.MustQuery("execute stmt2 using @v1,@v2").Check(testkit.Rows("3 3 333"))
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tkProcess = tk.Se.ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
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rows = tk.MustQuery(fmt.Sprintf("explain for connection %d", tkProcess.ID)).Rows()
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c.Assert(strings.Index(rows[len(rows)-1][0].(string), `Point_Get`), Equals, 0)
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// For CBO point get and batch point get
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// case 1:
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tk.MustExec(`drop table if exists ta, tb`)
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tk.MustExec(`create table ta (a varchar(8) primary key, b int)`)
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tk.MustExec(`insert ta values ('a', 1), ('b', 2)`)
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tk.MustExec(`create table tb (a varchar(8) primary key, b int)`)
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tk.MustExec(`insert tb values ('a', 1), ('b', 2)`)
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tk.MustExec(`prepare stmt1 from "select * from ta, tb where ta.a = tb.a and ta.a = ?"`)
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tk.MustExec(`set @v1 = 'a', @v2 = 'b'`)
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tk.MustQuery(`execute stmt1 using @v1`).Check(testkit.Rows("a 1 a 1"))
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tk.MustQuery(`execute stmt1 using @v2`).Check(testkit.Rows("b 2 b 2"))
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// case 2:
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tk.MustExec(`drop table if exists ta, tb`)
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tk.MustExec(`create table ta (a varchar(10) primary key, b int not null)`)
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tk.MustExec(`insert ta values ('a', 1), ('b', 2)`)
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tk.MustExec(`create table tb (b int primary key, c int)`)
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tk.MustExec(`insert tb values (1, 1), (2, 2)`)
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tk.MustExec(`prepare stmt1 from "select * from ta, tb where ta.b = tb.b and ta.a = ?"`)
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tk.MustExec(`set @v1 = 'a', @v2 = 'b'`)
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tk.MustQuery(`execute stmt1 using @v1`).Check(testkit.Rows("a 1 1 1"))
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tk.MustQuery(`execute stmt1 using @v2`).Check(testkit.Rows("b 2 2 2"))
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tk.MustQuery(`execute stmt1 using @v2`).Check(testkit.Rows("b 2 2 2"))
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tkProcess = tk.Se.ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
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rows = tk.MustQuery(fmt.Sprintf("explain for connection %d", tkProcess.ID)).Rows()
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c.Assert(strings.Contains(rows[3][0].(string), `TableRangeScan`), IsTrue)
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// case 3:
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tk.MustExec(`drop table if exists ta, tb`)
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tk.MustExec(`create table ta (a varchar(10), b varchar(10), c int, primary key (a, b))`)
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tk.MustExec(`insert ta values ('a', 'a', 1), ('b', 'b', 2), ('c', 'c', 3)`)
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tk.MustExec(`create table tb (b int primary key, c int)`)
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tk.MustExec(`insert tb values (1, 1), (2, 2), (3,3)`)
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tk.MustExec(`prepare stmt1 from "select * from ta, tb where ta.c = tb.b and ta.a = ? and ta.b = ?"`)
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tk.MustExec(`set @v1 = 'a', @v2 = 'b', @v3 = 'c'`)
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tk.MustQuery(`execute stmt1 using @v1, @v1`).Check(testkit.Rows("a a 1 1 1"))
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tk.MustQuery(`execute stmt1 using @v2, @v2`).Check(testkit.Rows("b b 2 2 2"))
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tk.MustExec(`prepare stmt2 from "select * from ta, tb where ta.c = tb.b and (ta.a, ta.b) in ((?, ?), (?, ?))"`)
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tk.MustQuery(`execute stmt2 using @v1, @v1, @v2, @v2`).Check(testkit.Rows("a a 1 1 1", "b b 2 2 2"))
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tk.MustQuery(`execute stmt2 using @v2, @v2, @v3, @v3`).Check(testkit.Rows("b b 2 2 2", "c c 3 3 3"))
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// For issue 19002
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tk.Se.GetSessionVars().EnableClusteredIndex = variable.ClusteredIndexDefModeOn
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tk.MustExec(`drop table if exists t1`)
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tk.MustExec(`create table t1(a int, b int, c int, primary key(a, b))`)
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tk.MustExec(`insert into t1 values(1,1,111),(2,2,222),(3,3,333)`)
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// Point Get:
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tk.MustExec(`prepare stmt1 from "select * from t1 where t1.a = ? and t1.b = ?"`)
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tk.MustExec(`set @v1=1, @v2=1`)
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tk.MustQuery(`execute stmt1 using @v1,@v2`).Check(testkit.Rows("1 1 111"))
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tk.MustExec(`set @v1=2, @v2=2`)
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tk.MustQuery(`execute stmt1 using @v1,@v2`).Check(testkit.Rows("2 2 222"))
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tk.MustQuery(`select @@last_plan_from_cache`).Check(testkit.Rows("1"))
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// Batch Point Get:
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tk.MustExec(`prepare stmt2 from "select * from t1 where (t1.a,t1.b) in ((?,?),(?,?))"`)
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tk.MustExec(`set @v1=1, @v2=1, @v3=2, @v4=2`)
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tk.MustQuery(`execute stmt2 using @v1,@v2,@v3,@v4`).Check(testkit.Rows("1 1 111", "2 2 222"))
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tk.MustExec(`set @v1=2, @v2=2, @v3=3, @v4=3`)
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tk.MustQuery(`execute stmt2 using @v1,@v2,@v3,@v4`).Check(testkit.Rows("2 2 222", "3 3 333"))
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tk.MustQuery(`select @@last_plan_from_cache`).Check(testkit.Rows("1"))
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}
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func (s *testPrepareSuite) TestPlanCacheWithDifferentVariableTypes(c *C) {
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store, dom, err := newStoreWithBootstrap()
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c.Assert(err, IsNil)
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tk := testkit.NewTestKit(c, store)
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defer func() {
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dom.Close()
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store.Close()
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}()
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orgEnable := plannercore.PreparedPlanCacheEnabled()
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defer func() {
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plannercore.SetPreparedPlanCache(orgEnable)
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}()
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plannercore.SetPreparedPlanCache(true)
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tk.MustExec("use test")
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tk.MustExec("drop table if exists t1, t2")
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tk.MustExec("set @@tidb_enable_collect_execution_info=0;")
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tk.MustExec("create table t1(a varchar(20), b int, c float, key(b, a))")
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tk.MustExec("insert into t1 values('1',1,1.1),('2',2,222),('3',3,333)")
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tk.MustExec("create table t2(a varchar(20), b int, c float, key(b, a))")
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tk.MustExec("insert into t2 values('3',3,3.3),('2',2,222),('3',3,333)")
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var input []struct {
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PrepareStmt string
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Executes []struct {
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Vars []struct {
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Name string
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Value string
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}
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ExecuteSQL string
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}
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}
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var output []struct {
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PrepareStmt string
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Executes []struct {
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SQL string
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Vars []struct {
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Name string
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Value string
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}
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Plan []string
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LastPlanUseCache string
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Result []string
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}
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}
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s.testData.GetTestCases(c, &input, &output)
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for i, tt := range input {
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tk.MustExec(tt.PrepareStmt)
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s.testData.OnRecord(func() {
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output[i].PrepareStmt = tt.PrepareStmt
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output[i].Executes = make([]struct {
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SQL string
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Vars []struct {
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Name string
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Value string
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}
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Plan []string
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LastPlanUseCache string
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Result []string
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}, len(tt.Executes))
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})
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c.Assert(output[i].PrepareStmt, Equals, tt.PrepareStmt)
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for j, exec := range tt.Executes {
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for _, v := range exec.Vars {
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tk.MustExec(fmt.Sprintf(`set @%s = %s`, v.Name, v.Value))
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|
}
|
|
res := tk.MustQuery(exec.ExecuteSQL)
|
|
lastPlanUseCache := tk.MustQuery("select @@last_plan_from_cache").Rows()[0][0]
|
|
tk.MustQuery(exec.ExecuteSQL)
|
|
tkProcess := tk.Se.ShowProcess()
|
|
ps := []*util.ProcessInfo{tkProcess}
|
|
tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
|
|
plan := tk.MustQuery(fmt.Sprintf("explain for connection %d", tkProcess.ID))
|
|
s.testData.OnRecord(func() {
|
|
output[i].Executes[j].SQL = exec.ExecuteSQL
|
|
output[i].Executes[j].Plan = s.testData.ConvertRowsToStrings(plan.Rows())
|
|
output[i].Executes[j].Vars = exec.Vars
|
|
output[i].Executes[j].LastPlanUseCache = lastPlanUseCache.(string)
|
|
output[i].Executes[j].Result = s.testData.ConvertRowsToStrings(res.Rows())
|
|
})
|
|
c.Assert(output[i].Executes[j].SQL, Equals, exec.ExecuteSQL)
|
|
plan.Check(testkit.Rows(output[i].Executes[j].Plan...))
|
|
c.Assert(output[i].Executes[j].Vars, DeepEquals, exec.Vars)
|
|
c.Assert(output[i].Executes[j].LastPlanUseCache, Equals, lastPlanUseCache.(string))
|
|
res.Check(testkit.Rows(output[i].Executes[j].Result...))
|
|
}
|
|
}
|
|
}
|
|
|
|
func (s *testPrepareSuite) TestPlanCacheOperators(c *C) {
|
|
store, dom, err := newStoreWithBootstrap()
|
|
c.Assert(err, IsNil)
|
|
tk := testkit.NewTestKit(c, store)
|
|
defer func() {
|
|
dom.Close()
|
|
store.Close()
|
|
}()
|
|
orgEnable := plannercore.PreparedPlanCacheEnabled()
|
|
defer func() {
|
|
plannercore.SetPreparedPlanCache(orgEnable)
|
|
}()
|
|
plannercore.SetPreparedPlanCache(true)
|
|
|
|
type ExecCase struct {
|
|
Parameters []string
|
|
UseCache bool
|
|
}
|
|
type PrepCase struct {
|
|
PrepStmt string
|
|
ExecCases []ExecCase
|
|
}
|
|
|
|
cases := []PrepCase{
|
|
{"use test", nil},
|
|
|
|
// cases for TableReader on PK
|
|
{"create table t (a int, b int, primary key(a))", nil},
|
|
{"insert into t values (1,1), (2,2), (3,3), (4,4), (5,5), (6,null)", nil},
|
|
{"select a from t where a=?", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"2"}, true},
|
|
{[]string{"3"}, true},
|
|
}},
|
|
{"select a from t where a in (?,?,?)", []ExecCase{
|
|
{[]string{"1", "1", "1"}, false},
|
|
{[]string{"2", "3", "4"}, true},
|
|
{[]string{"3", "5", "7"}, true},
|
|
}},
|
|
{"select a from t where a>? and a<?", []ExecCase{
|
|
{[]string{"5", "1"}, false},
|
|
{[]string{"1", "4"}, true},
|
|
{[]string{"3", "9"}, true},
|
|
}},
|
|
{"drop table t", nil},
|
|
|
|
// cases for IndexReader on UK
|
|
{"create table t (a int, b int, unique key(a))", nil},
|
|
{"insert into t values (1,1), (2,2), (3,3), (4,4), (5,5), (6,null)", nil},
|
|
{"select a from t where a=?", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"2"}, true},
|
|
{[]string{"3"}, true},
|
|
}},
|
|
{"select a from t where a in (?,?,?)", []ExecCase{
|
|
{[]string{"1", "1", "1"}, false},
|
|
{[]string{"2", "3", "4"}, true},
|
|
{[]string{"3", "5", "7"}, true},
|
|
}},
|
|
{"select a from t where a>? and a<?", []ExecCase{
|
|
{[]string{"5", "1"}, false},
|
|
{[]string{"1", "4"}, true},
|
|
{[]string{"3", "9"}, true},
|
|
}},
|
|
{"drop table t", nil},
|
|
|
|
// cases for IndexReader on Index
|
|
{"create table t (a int, b int, key(a))", nil},
|
|
{"insert into t values (1,1), (2,2), (3,3), (4,4), (5,5), (6,null)", nil},
|
|
{"select a from t where a=?", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"2"}, true},
|
|
{[]string{"3"}, true},
|
|
}},
|
|
{"select a from t where a in (?,?,?)", []ExecCase{
|
|
{[]string{"1", "1", "1"}, false},
|
|
{[]string{"2", "3", "4"}, true},
|
|
{[]string{"3", "5", "7"}, true},
|
|
}},
|
|
{"select a from t where a>? and a<?", []ExecCase{
|
|
{[]string{"5", "1"}, false},
|
|
{[]string{"1", "4"}, true},
|
|
{[]string{"3", "9"}, true},
|
|
}},
|
|
{"drop table t", nil},
|
|
|
|
// cases for IndexLookUp on UK
|
|
{"create table t (a int, b int, unique key(a))", nil},
|
|
{"insert into t values (1,1), (2,2), (3,3), (4,4), (5,5), (6,null)", nil},
|
|
{"select * from t where a=?", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"2"}, true},
|
|
{[]string{"3"}, true},
|
|
}},
|
|
{"select * from t where a in (?,?,?)", []ExecCase{
|
|
{[]string{"1", "1", "1"}, false},
|
|
{[]string{"2", "3", "4"}, true},
|
|
{[]string{"3", "5", "7"}, true},
|
|
}},
|
|
{"select * from t where a>? and a<?", []ExecCase{
|
|
{[]string{"5", "1"}, false},
|
|
{[]string{"1", "4"}, true},
|
|
{[]string{"3", "9"}, true},
|
|
}},
|
|
{"drop table t", nil},
|
|
|
|
// cases for IndexLookUp on Index
|
|
{"create table t (a int, b int, key(a))", nil},
|
|
{"insert into t values (1,1), (2,2), (3,3), (4,4), (5,5), (6,null)", nil},
|
|
{"select * from t where a=?", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"2"}, true},
|
|
{[]string{"3"}, true},
|
|
}},
|
|
{"select * from t where a in (?,?,?)", []ExecCase{
|
|
{[]string{"1", "1", "1"}, false},
|
|
{[]string{"2", "3", "4"}, true},
|
|
{[]string{"3", "5", "7"}, true},
|
|
}},
|
|
{"select * from t where a>? and a<?", []ExecCase{
|
|
{[]string{"5", "1"}, false},
|
|
{[]string{"1", "4"}, true},
|
|
{[]string{"3", "9"}, true},
|
|
}},
|
|
{"drop table t", nil},
|
|
|
|
// cases for HashJoin
|
|
{"create table t (a int, b int, key(a))", nil},
|
|
{"insert into t values (1,1), (2,2), (3,3), (4,4), (5,5), (6,null)", nil},
|
|
{"select /*+ HASH_JOIN(t1, t2) */ * from t t1, t t2 where t1.a=t2.a and t1.b>?", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"3"}, true},
|
|
{[]string{"5"}, true},
|
|
}},
|
|
{"select /*+ HASH_JOIN(t1, t2) */ * from t t1, t t2 where t1.a=t2.a and t2.b>?", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"3"}, true},
|
|
{[]string{"5"}, true},
|
|
}},
|
|
{"select /*+ HASH_JOIN(t1, t2) */ * from t t1, t t2 where t1.a=t2.a and t1.b>? and t2.b<?", []ExecCase{
|
|
{[]string{"1", "10"}, false},
|
|
{[]string{"3", "5"}, true},
|
|
{[]string{"5", "3"}, true},
|
|
}},
|
|
|
|
// cases for MergeJoin
|
|
{"select /*+ MERGE_JOIN(t1, t2) */ * from t t1, t t2 where t1.a=t2.a and t1.b>?", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"3"}, true},
|
|
{[]string{"5"}, true},
|
|
}},
|
|
{"select /*+ MERGE_JOIN(t1, t2) */ * from t t1, t t2 where t1.a=t2.a and t2.b>?", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"3"}, true},
|
|
{[]string{"5"}, true},
|
|
}},
|
|
{"select /*+ MERGE_JOIN(t1, t2) */ * from t t1, t t2 where t1.a=t2.a and t1.b>? and t2.b<?", []ExecCase{
|
|
{[]string{"1", "10"}, false},
|
|
{[]string{"3", "5"}, true},
|
|
{[]string{"5", "3"}, true},
|
|
}},
|
|
|
|
// cases for IndexJoin
|
|
{"select /*+ INL_JOIN(t1, t2) */ * from t t1, t t2 where t1.a=t2.a and t1.b>?", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"3"}, true},
|
|
{[]string{"5"}, true},
|
|
}},
|
|
{"select /*+ INL_JOIN(t1, t2) */ * from t t1, t t2 where t1.a=t2.a and t2.b>?", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"3"}, true},
|
|
{[]string{"5"}, true},
|
|
}},
|
|
{"select /*+ INL_JOIN(t1, t2) */ * from t t1, t t2 where t1.a=t2.a and t1.b>? and t2.b<?", []ExecCase{
|
|
{[]string{"1", "10"}, false},
|
|
{[]string{"3", "5"}, true},
|
|
{[]string{"5", "3"}, true},
|
|
}},
|
|
|
|
// cases for NestedLoopJoin (Apply)
|
|
{"select * from t t1 where t1.b>? and t1.a > (select min(t2.a) from t t2 where t2.b < t1.b)", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"3"}, false}, // plans with sub-queries cannot be cached, but the result must be correct
|
|
{[]string{"5"}, false},
|
|
}},
|
|
{"select * from t t1 where t1.a > (select min(t2.a) from t t2 where t2.b < t1.b+?)", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"3"}, false},
|
|
{[]string{"5"}, false},
|
|
}},
|
|
{"select * from t t1 where t1.b>? and t1.a > (select min(t2.a) from t t2 where t2.b < t1.b+?)", []ExecCase{
|
|
{[]string{"1", "1"}, false},
|
|
{[]string{"3", "2"}, false},
|
|
{[]string{"5", "3"}, false},
|
|
}},
|
|
{"drop table t", nil},
|
|
|
|
// cases for Window
|
|
{"create table t (name varchar(50), y int, sale decimal(14,2))", nil},
|
|
{"insert into t values ('Bob',2016,2.4), ('Bob',2017,3.2), ('Bob',2018,2.1), ('Alice',2016,1.4), ('Alice',2017,2), ('Alice',2018,3.3), ('John',2016,4), ('John',2017,2.1), ('John',2018,5)", nil},
|
|
{"select *, sum(sale) over (partition by y order by sale) total from t where sale>? order by y", []ExecCase{
|
|
{[]string{"0.1"}, false},
|
|
{[]string{"0.5"}, true},
|
|
{[]string{"1.5"}, true},
|
|
{[]string{"3.5"}, true},
|
|
}},
|
|
{"select *, sum(sale) over (partition by y order by sale+? rows 2 preceding) total from t order by y", []ExecCase{
|
|
{[]string{"0.1"}, false},
|
|
{[]string{"0.5"}, true},
|
|
{[]string{"1.5"}, true},
|
|
{[]string{"3.5"}, true},
|
|
}},
|
|
{"select *, rank() over (partition by y order by sale+? rows 2 preceding) total from t order by y", []ExecCase{
|
|
{[]string{"0.1"}, false},
|
|
{[]string{"0.5"}, true},
|
|
{[]string{"1.5"}, true},
|
|
{[]string{"3.5"}, true},
|
|
}},
|
|
{"select *, first_value(sale) over (partition by y order by sale+? rows 2 preceding) total from t order by y", []ExecCase{
|
|
{[]string{"0.1"}, false},
|
|
{[]string{"0.5"}, true},
|
|
{[]string{"1.5"}, true},
|
|
{[]string{"3.5"}, true},
|
|
}},
|
|
{"select *, first_value(sale) over (partition by y order by sale rows ? preceding) total from t order by y", []ExecCase{
|
|
{[]string{"1"}, false}, // window plans with parameters in frame cannot be cached
|
|
{[]string{"2"}, false},
|
|
{[]string{"3"}, false},
|
|
{[]string{"4"}, false},
|
|
}},
|
|
{"drop table t", nil},
|
|
|
|
// cases for Limit
|
|
{"create table t (a int)", nil},
|
|
{"insert into t values (1), (1), (2), (2), (3), (4), (5), (6), (7), (8), (9), (0), (0)", nil},
|
|
{"select * from t limit ?", []ExecCase{
|
|
{[]string{"20"}, false},
|
|
{[]string{"30"}, false},
|
|
}},
|
|
{"select * from t limit 40, ?", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"2"}, false},
|
|
}},
|
|
{"select * from t limit ?, 10", []ExecCase{
|
|
{[]string{"20"}, false},
|
|
{[]string{"30"}, false},
|
|
}},
|
|
{"select * from t limit ?, ?", []ExecCase{
|
|
{[]string{"20", "20"}, false},
|
|
{[]string{"20", "40"}, false},
|
|
}},
|
|
{"select * from t where a<? limit 20", []ExecCase{
|
|
{[]string{"2"}, false},
|
|
{[]string{"5"}, true},
|
|
{[]string{"9"}, true},
|
|
}},
|
|
{"drop table t", nil},
|
|
|
|
// cases for order
|
|
{"create table t (a int, b int)", nil},
|
|
{"insert into t values (0, 0), (1, 1), (2, 2), (3, 3), (4, 4), (5, 5)", nil},
|
|
{"select * from t order by ?", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"2"}, false},
|
|
}},
|
|
{"select * from t order by b+?", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"2"}, true},
|
|
{[]string{"3"}, true},
|
|
}},
|
|
{"select * from t order by mod(a, ?)", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"2"}, true},
|
|
{[]string{"3"}, true},
|
|
}},
|
|
{"select * from t where b>? order by mod(a, 3)", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"2"}, true},
|
|
{[]string{"3"}, true},
|
|
}},
|
|
|
|
// cases for topN
|
|
{"select * from t order by b limit ?", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"2"}, false},
|
|
}},
|
|
{"select * from t order by b limit 10, ?", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"2"}, false},
|
|
}},
|
|
{"select * from t order by ? limit 10", []ExecCase{
|
|
{[]string{"1"}, false},
|
|
{[]string{"2"}, false},
|
|
}},
|
|
{"select * from t order by ? limit ?", []ExecCase{
|
|
{[]string{"1", "10"}, false},
|
|
{[]string{"2", "20"}, false},
|
|
}},
|
|
}
|
|
|
|
for _, prepCase := range cases {
|
|
isQuery := strings.Contains(prepCase.PrepStmt, "select")
|
|
if !isQuery {
|
|
tk.MustExec(prepCase.PrepStmt)
|
|
continue
|
|
}
|
|
|
|
tk.MustExec(fmt.Sprintf(`prepare stmt from '%v'`, prepCase.PrepStmt))
|
|
for _, execCase := range prepCase.ExecCases {
|
|
// set all parameters
|
|
usingStmt := ""
|
|
if len(execCase.Parameters) > 0 {
|
|
setStmt := "set "
|
|
usingStmt = "using "
|
|
for i, parameter := range execCase.Parameters {
|
|
if i > 0 {
|
|
setStmt += ", "
|
|
usingStmt += ", "
|
|
}
|
|
setStmt += fmt.Sprintf("@x%v=%v", i, parameter)
|
|
usingStmt += fmt.Sprintf("@x%v", i)
|
|
}
|
|
tk.MustExec(setStmt)
|
|
}
|
|
|
|
// execute this statement and check whether it uses a cached plan
|
|
results := tk.MustQuery("execute stmt " + usingStmt).Sort().Rows()
|
|
useCache := "0"
|
|
if execCase.UseCache {
|
|
useCache = "1"
|
|
}
|
|
tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows(useCache))
|
|
|
|
// check whether the result is correct
|
|
tmp := strings.Split(prepCase.PrepStmt, "?")
|
|
c.Assert(len(tmp), Equals, len(execCase.Parameters)+1)
|
|
query := ""
|
|
for i := range tmp {
|
|
query += tmp[i]
|
|
if i < len(execCase.Parameters) {
|
|
query += execCase.Parameters[i]
|
|
}
|
|
}
|
|
tk.MustQuery(query).Sort().Check(results)
|
|
}
|
|
}
|
|
}
|
|
|
|
func (s *testSerialSuite) TestIssue28782(c *C) {
|
|
store, dom, err := newStoreWithBootstrap()
|
|
c.Assert(err, IsNil)
|
|
tk := testkit.NewTestKit(c, store)
|
|
defer func() {
|
|
dom.Close()
|
|
store.Close()
|
|
}()
|
|
orgEnable := plannercore.PreparedPlanCacheEnabled()
|
|
defer func() {
|
|
plannercore.SetPreparedPlanCache(orgEnable)
|
|
}()
|
|
plannercore.SetPreparedPlanCache(true)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("set @@tidb_enable_collect_execution_info=0;")
|
|
tk.MustExec("prepare stmt from 'SELECT IF(?, 1, 0);';")
|
|
tk.MustExec("set @a=1, @b=null, @c=0")
|
|
|
|
tk.MustQuery("execute stmt using @a;").Check(testkit.Rows("1"))
|
|
tk.MustQuery("execute stmt using @b;").Check(testkit.Rows("0"))
|
|
tk.MustQuery("select @@last_plan_from_cache;").Check(testkit.Rows("1"))
|
|
tk.MustQuery("execute stmt using @c;").Check(testkit.Rows("0"))
|
|
tk.MustQuery("select @@last_plan_from_cache;").Check(testkit.Rows("1"))
|
|
}
|
|
|
|
func (s *testSerialSuite) TestIssue29101(c *C) {
|
|
store, dom, err := newStoreWithBootstrap()
|
|
c.Assert(err, IsNil)
|
|
tk := testkit.NewTestKit(c, store)
|
|
defer func() {
|
|
dom.Close()
|
|
store.Close()
|
|
}()
|
|
orgEnable := plannercore.PreparedPlanCacheEnabled()
|
|
defer func() {
|
|
plannercore.SetPreparedPlanCache(orgEnable)
|
|
}()
|
|
plannercore.SetPreparedPlanCache(true)
|
|
|
|
tk.MustExec(`use test`)
|
|
tk.MustExec("set @@tidb_enable_collect_execution_info=0;")
|
|
tk.MustExec(`CREATE TABLE customer (
|
|
c_id int(11) NOT NULL,
|
|
c_d_id int(11) NOT NULL,
|
|
c_w_id int(11) NOT NULL,
|
|
c_first varchar(16) DEFAULT NULL,
|
|
c_last varchar(16) DEFAULT NULL,
|
|
c_credit char(2) DEFAULT NULL,
|
|
c_discount decimal(4,4) DEFAULT NULL,
|
|
PRIMARY KEY (c_w_id,c_d_id,c_id),
|
|
KEY idx_customer (c_w_id,c_d_id,c_last,c_first)
|
|
)`)
|
|
tk.MustExec(`CREATE TABLE warehouse (
|
|
w_id int(11) NOT NULL,
|
|
w_tax decimal(4,4) DEFAULT NULL,
|
|
PRIMARY KEY (w_id)
|
|
)`)
|
|
tk.MustExec(`prepare s1 from 'SELECT /*+ TIDB_INLJ(customer,warehouse) */ c_discount, c_last, c_credit, w_tax FROM customer, warehouse WHERE w_id = ? AND c_w_id = w_id AND c_d_id = ? AND c_id = ?'`)
|
|
tk.MustExec(`set @a=936,@b=7,@c=158`)
|
|
tk.MustQuery(`execute s1 using @a,@b,@c`).Check(testkit.Rows())
|
|
tkProcess := tk.Se.ShowProcess()
|
|
ps := []*util.ProcessInfo{tkProcess}
|
|
tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
|
|
tk.MustQuery(fmt.Sprintf("explain for connection %d", tkProcess.ID)).Check(testkit.Rows( // can use IndexJoin
|
|
`Projection_6 1.00 root test.customer.c_discount, test.customer.c_last, test.customer.c_credit, test.warehouse.w_tax`,
|
|
`└─IndexJoin_14 1.00 root inner join, inner:TableReader_10, outer key:test.customer.c_w_id, inner key:test.warehouse.w_id, equal cond:eq(test.customer.c_w_id, test.warehouse.w_id)`,
|
|
` ├─Selection_36(Build) 1.00 root eq(test.customer.c_d_id, 7), eq(test.customer.c_id, 158), eq(test.customer.c_w_id, 936)`,
|
|
` │ └─IndexLookUp_35 1.00 root `,
|
|
` │ ├─IndexRangeScan_33(Build) 1.00 cop[tikv] table:customer, index:PRIMARY(c_w_id, c_d_id, c_id) range:[936 7 158,936 7 158], keep order:false, stats:pseudo`,
|
|
` │ └─TableRowIDScan_34(Probe) 1.00 cop[tikv] table:customer keep order:false, stats:pseudo`,
|
|
` └─TableReader_10(Probe) 0.00 root data:Selection_9`,
|
|
` └─Selection_9 0.00 cop[tikv] eq(test.warehouse.w_id, 936)`,
|
|
` └─TableRangeScan_8 1.00 cop[tikv] table:warehouse range: decided by [test.customer.c_w_id], keep order:false, stats:pseudo`))
|
|
tk.MustQuery(`execute s1 using @a,@b,@c`).Check(testkit.Rows())
|
|
tk.MustQuery(`select @@last_plan_from_cache`).Check(testkit.Rows("1")) // can use the plan-cache
|
|
|
|
tk.MustExec(`CREATE TABLE order_line (
|
|
ol_o_id int(11) NOT NULL,
|
|
ol_d_id int(11) NOT NULL,
|
|
ol_w_id int(11) NOT NULL,
|
|
ol_number int(11) NOT NULL,
|
|
ol_i_id int(11) NOT NULL,
|
|
PRIMARY KEY (ol_w_id,ol_d_id,ol_o_id,ol_number))`)
|
|
tk.MustExec(`CREATE TABLE stock (
|
|
s_i_id int(11) NOT NULL,
|
|
s_w_id int(11) NOT NULL,
|
|
s_quantity int(11) DEFAULT NULL,
|
|
PRIMARY KEY (s_w_id,s_i_id))`)
|
|
tk.MustExec(`prepare s1 from 'SELECT /*+ TIDB_INLJ(order_line,stock) */ COUNT(DISTINCT (s_i_id)) stock_count FROM order_line, stock WHERE ol_w_id = ? AND ol_d_id = ? AND ol_o_id < ? AND ol_o_id >= ? - 20 AND s_w_id = ? AND s_i_id = ol_i_id AND s_quantity < ?'`)
|
|
tk.MustExec(`set @a=391,@b=1,@c=3058,@d=18`)
|
|
tk.MustExec(`execute s1 using @a,@b,@c,@c,@a,@d`)
|
|
tkProcess = tk.Se.ShowProcess()
|
|
ps = []*util.ProcessInfo{tkProcess}
|
|
tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
|
|
tk.MustQuery(fmt.Sprintf("explain for connection %d", tkProcess.ID)).Check(testkit.Rows( // can use index-join
|
|
`StreamAgg_9 1.00 root funcs:count(distinct test.stock.s_i_id)->Column#11`,
|
|
`└─IndexJoin_14 0.03 root inner join, inner:IndexLookUp_13, outer key:test.order_line.ol_i_id, inner key:test.stock.s_i_id, equal cond:eq(test.order_line.ol_i_id, test.stock.s_i_id)`,
|
|
` ├─Selection_30(Build) 0.03 root eq(test.order_line.ol_d_id, 1), eq(test.order_line.ol_w_id, 391), ge(test.order_line.ol_o_id, 3038), lt(test.order_line.ol_o_id, 3058)`,
|
|
` │ └─IndexLookUp_29 0.03 root `,
|
|
` │ ├─IndexRangeScan_27(Build) 0.03 cop[tikv] table:order_line, index:PRIMARY(ol_w_id, ol_d_id, ol_o_id, ol_number) range:[391 1 3038,391 1 3058), keep order:false, stats:pseudo`,
|
|
` │ └─TableRowIDScan_28(Probe) 0.03 cop[tikv] table:order_line keep order:false, stats:pseudo`,
|
|
` └─IndexLookUp_13(Probe) 1.00 root `,
|
|
` ├─IndexRangeScan_10(Build) 1.00 cop[tikv] table:stock, index:PRIMARY(s_w_id, s_i_id) range: decided by [eq(test.stock.s_i_id, test.order_line.ol_i_id) eq(test.stock.s_w_id, 391)], keep order:false, stats:pseudo`,
|
|
` └─Selection_12(Probe) 1.00 cop[tikv] lt(test.stock.s_quantity, 18)`,
|
|
` └─TableRowIDScan_11 1.00 cop[tikv] table:stock keep order:false, stats:pseudo`))
|
|
tk.MustExec(`execute s1 using @a,@b,@c,@c,@a,@d`)
|
|
tk.MustQuery(`select @@last_plan_from_cache`).Check(testkit.Rows("1")) // can use the plan-cache
|
|
}
|
|
|
|
func (s *testSerialSuite) TestIssue28087And28162(c *C) {
|
|
store, dom, err := newStoreWithBootstrap()
|
|
c.Assert(err, IsNil)
|
|
tk := testkit.NewTestKit(c, store)
|
|
defer func() {
|
|
dom.Close()
|
|
store.Close()
|
|
}()
|
|
orgEnable := plannercore.PreparedPlanCacheEnabled()
|
|
defer func() {
|
|
plannercore.SetPreparedPlanCache(orgEnable)
|
|
}()
|
|
plannercore.SetPreparedPlanCache(true)
|
|
|
|
// issue 28087
|
|
tk.MustExec(`use test`)
|
|
tk.MustExec(`drop table if exists IDT_26207`)
|
|
tk.MustExec(`CREATE TABLE IDT_26207 (col1 bit(1))`)
|
|
tk.MustExec(`insert into IDT_26207 values(0x0), (0x1)`)
|
|
tk.MustExec(`prepare stmt from 'select t1.col1 from IDT_26207 as t1 left join IDT_26207 as t2 on t1.col1 = t2.col1 where t1.col1 in (?, ?, ?)'`)
|
|
tk.MustExec(`set @a=0x01, @b=0x01, @c=0x01`)
|
|
tk.MustQuery(`execute stmt using @a,@b,@c`).Check(testkit.Rows("\x01"))
|
|
tk.MustExec(`set @a=0x00, @b=0x00, @c=0x01`)
|
|
tk.MustQuery(`execute stmt using @a,@b,@c`).Check(testkit.Rows("\x00", "\x01"))
|
|
tk.MustQuery(`select @@last_plan_from_cache`).Check(testkit.Rows("0"))
|
|
|
|
// issue 28162
|
|
tk.MustExec(`drop table if exists IDT_MC21780`)
|
|
tk.MustExec(`CREATE TABLE IDT_MC21780 (
|
|
COL1 timestamp NULL DEFAULT NULL,
|
|
COL2 timestamp NULL DEFAULT NULL,
|
|
COL3 timestamp NULL DEFAULT NULL,
|
|
KEY U_M_COL (COL1,COL2)
|
|
)`)
|
|
tk.MustExec(`insert into IDT_MC21780 values("1970-12-18 10:53:28", "1970-12-18 10:53:28", "1970-12-18 10:53:28")`)
|
|
tk.MustExec(`prepare stmt from 'select/*+ hash_join(t1) */ * from IDT_MC21780 t1 join IDT_MC21780 t2 on t1.col1 = t2.col1 where t1. col1 < ? and t2. col1 in (?, ?, ?);'`)
|
|
tk.MustExec(`set @a="2038-01-19 03:14:07", @b="2038-01-19 03:14:07", @c="2038-01-19 03:14:07", @d="2038-01-19 03:14:07"`)
|
|
tk.MustQuery(`execute stmt using @a,@b,@c,@d`).Check(testkit.Rows())
|
|
tk.MustExec(`set @a="1976-09-09 20:21:11", @b="2021-07-14 09:28:16", @c="1982-01-09 03:36:39", @d="1970-12-18 10:53:28"`)
|
|
tk.MustQuery(`execute stmt using @a,@b,@c,@d`).Check(testkit.Rows("1970-12-18 10:53:28 1970-12-18 10:53:28 1970-12-18 10:53:28 1970-12-18 10:53:28 1970-12-18 10:53:28 1970-12-18 10:53:28"))
|
|
tk.MustQuery(`select @@last_plan_from_cache`).Check(testkit.Rows("1"))
|
|
}
|
|
|
|
func (s *testPrepareSuite) TestParameterPushDown(c *C) {
|
|
store, dom, err := newStoreWithBootstrap()
|
|
c.Assert(err, IsNil)
|
|
tk := testkit.NewTestKit(c, store)
|
|
defer func() {
|
|
dom.Close()
|
|
store.Close()
|
|
}()
|
|
orgEnable := plannercore.PreparedPlanCacheEnabled()
|
|
defer func() {
|
|
plannercore.SetPreparedPlanCache(orgEnable)
|
|
}()
|
|
plannercore.SetPreparedPlanCache(true)
|
|
|
|
tk.MustExec(`use test`)
|
|
tk.MustExec(`drop table if exists t`)
|
|
tk.MustExec(`create table t (a int, b int, c int, key(a))`)
|
|
tk.MustExec(`insert into t values (1, 1, 1), (2, 2, 2), (3, 3, 3), (4, 4, 4), (5, 5, 5), (6, 6, 6)`)
|
|
tk.MustExec("set @@tidb_enable_collect_execution_info=0;")
|
|
tk.MustExec(`set @x1=1,@x5=5,@x10=10,@x20=20`)
|
|
|
|
var input []struct {
|
|
SQL string
|
|
}
|
|
var output []struct {
|
|
Result []string
|
|
Plan []string
|
|
FromCache string
|
|
}
|
|
s.testData.GetTestCases(c, &input, &output)
|
|
|
|
for i, tt := range input {
|
|
if strings.HasPrefix(tt.SQL, "execute") {
|
|
res := tk.MustQuery(tt.SQL).Sort()
|
|
fromCache := tk.MustQuery("select @@last_plan_from_cache")
|
|
tk.MustQuery(tt.SQL)
|
|
tkProcess := tk.Se.ShowProcess()
|
|
ps := []*util.ProcessInfo{tkProcess}
|
|
tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
|
|
plan := tk.MustQuery(fmt.Sprintf("explain for connection %d", tkProcess.ID))
|
|
|
|
s.testData.OnRecord(func() {
|
|
output[i].Result = s.testData.ConvertRowsToStrings(res.Rows())
|
|
output[i].Plan = s.testData.ConvertRowsToStrings(plan.Rows())
|
|
output[i].FromCache = fromCache.Rows()[0][0].(string)
|
|
})
|
|
|
|
res.Check(testkit.Rows(output[i].Result...))
|
|
plan.Check(testkit.Rows(output[i].Plan...))
|
|
c.Assert(output[i].FromCache, Equals, fromCache.Rows()[0][0].(string))
|
|
} else {
|
|
tk.MustExec(tt.SQL)
|
|
s.testData.OnRecord(func() {
|
|
output[i].Result = nil
|
|
})
|
|
}
|
|
}
|
|
}
|
|
|
|
func (s *testSerialSuite) TestPreparePlanCache4Function(c *C) {
|
|
store, dom, err := newStoreWithBootstrap()
|
|
c.Assert(err, IsNil)
|
|
tk := testkit.NewTestKit(c, store)
|
|
defer func() {
|
|
dom.Close()
|
|
store.Close()
|
|
}()
|
|
orgEnable := plannercore.PreparedPlanCacheEnabled()
|
|
defer func() {
|
|
plannercore.SetPreparedPlanCache(orgEnable)
|
|
}()
|
|
plannercore.SetPreparedPlanCache(true)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("set @@tidb_enable_collect_execution_info=0;")
|
|
|
|
// Testing for non-deterministic functions
|
|
tk.MustExec("prepare stmt from 'select rand()';")
|
|
res := tk.MustQuery("execute stmt;")
|
|
c.Assert(len(res.Rows()), Equals, 1)
|
|
|
|
res1 := tk.MustQuery("execute stmt;")
|
|
c.Assert(len(res1.Rows()), Equals, 1)
|
|
c.Assert(res.Rows()[0][0] != res1.Rows()[0][0], Equals, true)
|
|
tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("1"))
|
|
|
|
// Testing for control functions
|
|
tk.MustExec("prepare stmt from 'SELECT IFNULL(?,0);';")
|
|
tk.MustExec("set @a = 1, @b = null;")
|
|
tk.MustQuery("execute stmt using @a;").Check(testkit.Rows("1"))
|
|
tk.MustQuery("execute stmt using @b;").Check(testkit.Rows("0"))
|
|
tk.MustQuery("select @@last_plan_from_cache;").Check(testkit.Rows("1"))
|
|
|
|
tk.MustExec("drop table if exists t;")
|
|
tk.MustExec("create table t(a int);")
|
|
tk.MustExec("prepare stmt from 'select a, case when a = ? then 0 when a <=> ? then 1 else 2 end b from t order by a;';")
|
|
tk.MustExec("insert into t values(0), (1), (2), (null);")
|
|
tk.MustExec("set @a = 0, @b = 1, @c = 2, @d = null;")
|
|
tk.MustQuery("execute stmt using @a, @b;").Check(testkit.Rows("<nil> 2", "0 0", "1 1", "2 2"))
|
|
tk.MustQuery("execute stmt using @c, @d;").Check(testkit.Rows("<nil> 1", "0 2", "1 2", "2 0"))
|
|
tk.MustQuery("select @@last_plan_from_cache;").Check(testkit.Rows("1"))
|
|
}
|
|
|
|
func (s *testSerialSuite) TestPreparePlanCache4DifferentSystemVars(c *C) {
|
|
store, dom, err := newStoreWithBootstrap()
|
|
c.Assert(err, IsNil)
|
|
tk := testkit.NewTestKit(c, store)
|
|
defer func() {
|
|
dom.Close()
|
|
store.Close()
|
|
}()
|
|
orgEnable := plannercore.PreparedPlanCacheEnabled()
|
|
defer func() {
|
|
plannercore.SetPreparedPlanCache(orgEnable)
|
|
}()
|
|
plannercore.SetPreparedPlanCache(true)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("set @@tidb_enable_collect_execution_info=0;")
|
|
|
|
// Testing for 'sql_select_limit'
|
|
tk.MustExec("set @@sql_select_limit = 1")
|
|
tk.MustExec("drop table if exists t;")
|
|
tk.MustExec("create table t(a int);")
|
|
tk.MustExec("insert into t values(0), (1), (null);")
|
|
tk.MustExec("prepare stmt from 'select a from t order by a;';")
|
|
tk.MustQuery("execute stmt;").Check(testkit.Rows("<nil>"))
|
|
|
|
tk.MustExec("set @@sql_select_limit = 2")
|
|
tk.MustQuery("execute stmt;").Check(testkit.Rows("<nil>", "0"))
|
|
// The 'sql_select_limit' will be stored in the cache key. So if the `sql_select_limit`
|
|
// have been changed, the plan cache can not be reused.
|
|
tk.MustQuery("select @@last_plan_from_cache;").Check(testkit.Rows("0"))
|
|
|
|
tk.MustExec("set @@sql_select_limit = 18446744073709551615")
|
|
tk.MustQuery("execute stmt;").Check(testkit.Rows("<nil>", "0", "1"))
|
|
tk.MustQuery("select @@last_plan_from_cache;").Check(testkit.Rows("0"))
|
|
|
|
// test for 'tidb_enable_index_merge'
|
|
tk.MustExec("set @@tidb_enable_index_merge = 1;")
|
|
tk.MustExec("drop table if exists t;")
|
|
tk.MustExec("create table t(a int, b int, index idx_a(a), index idx_b(b));")
|
|
tk.MustExec("prepare stmt from 'select * from t use index(idx_a, idx_b) where a > 1 or b > 1;';")
|
|
tk.MustExec("execute stmt;")
|
|
tkProcess := tk.Se.ShowProcess()
|
|
ps := []*util.ProcessInfo{tkProcess}
|
|
tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
|
|
res := tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
|
|
c.Assert(len(res.Rows()), Equals, 4)
|
|
c.Assert(res.Rows()[0][0], Matches, ".*IndexMerge.*")
|
|
|
|
tk.MustExec("set @@tidb_enable_index_merge = 0;")
|
|
tk.MustExec("execute stmt;")
|
|
tkProcess = tk.Se.ShowProcess()
|
|
ps = []*util.ProcessInfo{tkProcess}
|
|
tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
|
|
res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
|
|
c.Assert(len(res.Rows()), Equals, 4)
|
|
c.Assert(res.Rows()[0][0], Matches, ".*IndexMerge.*")
|
|
tk.MustExec("execute stmt;")
|
|
tk.MustQuery("select @@last_plan_from_cache;").Check(testkit.Rows("1"))
|
|
|
|
// test for 'tidb_enable_parallel_apply'
|
|
tk.MustExec("set @@tidb_enable_collect_execution_info=1;")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t (a int, b int)")
|
|
tk.MustExec("insert into t values (0, 0), (1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6), (7, 7), (8, 8), (9, 9), (null, null)")
|
|
|
|
tk.MustExec("set tidb_enable_parallel_apply=true")
|
|
tk.MustExec("prepare stmt from 'select t1.b from t t1 where t1.b > (select max(b) from t t2 where t1.a > t2.a);';")
|
|
tk.MustQuery("execute stmt;").Sort().Check(testkit.Rows("1", "2", "3", "4", "5", "6", "7", "8", "9"))
|
|
tkProcess = tk.Se.ShowProcess()
|
|
ps = []*util.ProcessInfo{tkProcess}
|
|
tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
|
|
res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
|
|
c.Assert(res.Rows()[1][0], Matches, ".*Apply.*")
|
|
c.Assert(res.Rows()[1][5], Matches, ".*Concurrency.*")
|
|
|
|
tk.MustExec("set tidb_enable_parallel_apply=false")
|
|
tk.MustQuery("execute stmt;").Sort().Check(testkit.Rows("1", "2", "3", "4", "5", "6", "7", "8", "9"))
|
|
tkProcess = tk.Se.ShowProcess()
|
|
ps = []*util.ProcessInfo{tkProcess}
|
|
tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
|
|
res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
|
|
c.Assert(res.Rows()[1][0], Matches, ".*Apply.*")
|
|
executionInfo := fmt.Sprintf("%v", res.Rows()[1][4])
|
|
// Do not use the parallel apply.
|
|
c.Assert(strings.Contains(executionInfo, "Concurrency") == false, Equals, true)
|
|
tk.MustExec("execute stmt;")
|
|
// The subquery plan can not be cached.
|
|
tk.MustQuery("select @@last_plan_from_cache;").Check(testkit.Rows("0"))
|
|
|
|
// test for apply cache
|
|
tk.MustExec("set @@tidb_enable_collect_execution_info=1;")
|
|
tk.MustExec("set tidb_mem_quota_apply_cache=33554432")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t (a int, b int)")
|
|
tk.MustExec("insert into t values (0, 0), (1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6), (7, 7), (8, 8), (9, 9), (null, null)")
|
|
|
|
tk.MustExec("prepare stmt from 'select t1.b from t t1 where t1.b > (select max(b) from t t2 where t1.a > t2.a);';")
|
|
tk.MustQuery("execute stmt;").Sort().Check(testkit.Rows("1", "2", "3", "4", "5", "6", "7", "8", "9"))
|
|
tkProcess = tk.Se.ShowProcess()
|
|
ps = []*util.ProcessInfo{tkProcess}
|
|
tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
|
|
res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
|
|
c.Assert(res.Rows()[1][0], Matches, ".*Apply.*")
|
|
c.Assert(res.Rows()[1][5], Matches, ".*cache:ON.*")
|
|
|
|
tk.MustExec("set tidb_mem_quota_apply_cache=0")
|
|
tk.MustQuery("execute stmt;").Sort().Check(testkit.Rows("1", "2", "3", "4", "5", "6", "7", "8", "9"))
|
|
tkProcess = tk.Se.ShowProcess()
|
|
ps = []*util.ProcessInfo{tkProcess}
|
|
tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
|
|
res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
|
|
c.Assert(res.Rows()[1][0], Matches, ".*Apply.*")
|
|
executionInfo = fmt.Sprintf("%v", res.Rows()[1][5])
|
|
// Do not use the apply cache.
|
|
c.Assert(strings.Contains(executionInfo, "cache:OFF") == true, Equals, true)
|
|
tk.MustExec("execute stmt;")
|
|
// The subquery plan can not be cached.
|
|
tk.MustQuery("select @@last_plan_from_cache;").Check(testkit.Rows("0"))
|
|
}
|
|
|
|
func (s *testSerialSuite) TestTemporaryTable4PlanCache(c *C) {
|
|
store, dom, err := newStoreWithBootstrap()
|
|
c.Assert(err, IsNil)
|
|
tk := testkit.NewTestKit(c, store)
|
|
defer func() {
|
|
dom.Close()
|
|
store.Close()
|
|
}()
|
|
orgEnable := plannercore.PreparedPlanCacheEnabled()
|
|
defer func() {
|
|
plannercore.SetPreparedPlanCache(orgEnable)
|
|
}()
|
|
plannercore.SetPreparedPlanCache(true)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("set @@tidb_enable_collect_execution_info=0;")
|
|
tk.MustExec("drop table if exists tmp2")
|
|
tk.MustExec("create temporary table tmp2 (a int, b int, key(a), key(b));")
|
|
tk.MustExec("prepare stmt from 'select * from tmp2;';")
|
|
tk.MustQuery("execute stmt;").Check(testkit.Rows())
|
|
tk.MustQuery("execute stmt;").Check(testkit.Rows())
|
|
tk.MustQuery("select @@last_plan_from_cache;").Check(testkit.Rows("0"))
|
|
|
|
tk.MustExec("drop table if exists tmp_t;")
|
|
tk.MustExec("create global temporary table tmp_t (id int primary key, a int, b int, index(a)) on commit delete rows")
|
|
tk.MustExec("prepare stmt from 'select * from tmp_t;';")
|
|
tk.MustQuery("execute stmt;").Check(testkit.Rows())
|
|
tk.MustQuery("execute stmt;").Check(testkit.Rows())
|
|
tk.MustQuery("select @@last_plan_from_cache;").Check(testkit.Rows("0"))
|
|
|
|
}
|
|
|
|
func (s *testSerialSuite) TestPreparePlanCache4Blacklist(c *C) {
|
|
store, dom, err := newStoreWithBootstrap()
|
|
c.Assert(err, IsNil)
|
|
tk := testkit.NewTestKit(c, store)
|
|
defer func() {
|
|
dom.Close()
|
|
store.Close()
|
|
}()
|
|
orgEnable := plannercore.PreparedPlanCacheEnabled()
|
|
defer func() {
|
|
plannercore.SetPreparedPlanCache(orgEnable)
|
|
}()
|
|
plannercore.SetPreparedPlanCache(true)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("set @@tidb_enable_collect_execution_info=0;")
|
|
|
|
// test the blacklist of optimization rules
|
|
tk.MustExec("drop table if exists t;")
|
|
tk.MustExec("create table t(a int);")
|
|
tk.MustExec("prepare stmt from 'select min(a) from t;';")
|
|
tk.MustExec("execute stmt;")
|
|
tkProcess := tk.Se.ShowProcess()
|
|
ps := []*util.ProcessInfo{tkProcess}
|
|
tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
|
|
res := tk.MustQuery(fmt.Sprintf("explain for connection %d", tkProcess.ID))
|
|
c.Assert(res.Rows()[1][0], Matches, ".*TopN.*")
|
|
|
|
res = tk.MustQuery("explain format = 'brief' select min(a) from t")
|
|
c.Assert(res.Rows()[1][0], Matches, ".*TopN.*")
|
|
|
|
tk.MustExec("INSERT INTO mysql.opt_rule_blacklist VALUES('max_min_eliminate');")
|
|
tk.MustExec("ADMIN reload opt_rule_blacklist;")
|
|
|
|
tk.MustExec("execute stmt;")
|
|
tk.MustQuery("select @@last_plan_from_cache;").Check(testkit.Rows("1"))
|
|
tk.MustExec("execute stmt;")
|
|
tkProcess = tk.Se.ShowProcess()
|
|
ps = []*util.ProcessInfo{tkProcess}
|
|
tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
|
|
res = tk.MustQuery(fmt.Sprintf("explain for connection %d", tkProcess.ID))
|
|
// Plans that have been cached will not be affected by the blacklist.
|
|
c.Assert(res.Rows()[1][0], Matches, ".*TopN.*")
|
|
|
|
res = tk.MustQuery("explain format = 'brief' select min(a) from t")
|
|
c.Assert(res.Rows()[0][0], Matches, ".*StreamAgg.*")
|
|
|
|
// test the blacklist of Expression Pushdown
|
|
tk.MustExec("drop table if exists t;")
|
|
tk.MustExec("create table t(a int);")
|
|
tk.MustExec("prepare stmt from 'SELECT * FROM t WHERE a < 2 and a > 2;';")
|
|
tk.MustExec("execute stmt;")
|
|
tkProcess = tk.Se.ShowProcess()
|
|
ps = []*util.ProcessInfo{tkProcess}
|
|
tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
|
|
res = tk.MustQuery(fmt.Sprintf("explain for connection %d", tkProcess.ID))
|
|
c.Assert(len(res.Rows()), Equals, 3)
|
|
c.Assert(res.Rows()[1][0], Matches, ".*Selection.*")
|
|
c.Assert(res.Rows()[1][4], Equals, "gt(test.t.a, 2), lt(test.t.a, 2)")
|
|
|
|
res = tk.MustQuery("explain format = 'brief' SELECT * FROM t WHERE a < 2 and a > 2;")
|
|
c.Assert(len(res.Rows()), Equals, 3)
|
|
c.Assert(res.Rows()[1][4], Equals, "gt(test.t.a, 2), lt(test.t.a, 2)")
|
|
|
|
tk.MustExec("INSERT INTO mysql.expr_pushdown_blacklist VALUES('<','tikv','');")
|
|
tk.MustExec("ADMIN reload expr_pushdown_blacklist;")
|
|
|
|
tk.MustExec("execute stmt;")
|
|
tk.MustQuery("select @@last_plan_from_cache;").Check(testkit.Rows("1"))
|
|
tk.MustExec("execute stmt;")
|
|
tkProcess = tk.Se.ShowProcess()
|
|
ps = []*util.ProcessInfo{tkProcess}
|
|
tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
|
|
res = tk.MustQuery(fmt.Sprintf("explain for connection %d", tkProcess.ID))
|
|
// The expressions can still be pushed down to tikv.
|
|
c.Assert(len(res.Rows()), Equals, 3)
|
|
c.Assert(res.Rows()[1][0], Matches, ".*Selection.*")
|
|
c.Assert(res.Rows()[1][4], Equals, "gt(test.t.a, 2), lt(test.t.a, 2)")
|
|
|
|
res = tk.MustQuery("explain format = 'brief' SELECT * FROM t WHERE a < 2 and a > 2;")
|
|
c.Assert(len(res.Rows()), Equals, 4)
|
|
c.Assert(res.Rows()[0][0], Matches, ".*Selection.*")
|
|
c.Assert(res.Rows()[0][4], Equals, "lt(test.t.a, 2)")
|
|
c.Assert(res.Rows()[2][0], Matches, ".*Selection.*")
|
|
c.Assert(res.Rows()[2][4], Equals, "gt(test.t.a, 2)")
|
|
|
|
tk.MustExec("DELETE FROM mysql.expr_pushdown_blacklist;")
|
|
tk.MustExec("ADMIN reload expr_pushdown_blacklist;")
|
|
}
|
|
|
|
func (s *testSerialSuite) TestIssue28064(c *C) {
|
|
store, dom, err := newStoreWithBootstrap()
|
|
c.Assert(err, IsNil)
|
|
tk := testkit.NewTestKit(c, store)
|
|
defer func() {
|
|
dom.Close()
|
|
store.Close()
|
|
}()
|
|
orgEnable := plannercore.PreparedPlanCacheEnabled()
|
|
defer func() {
|
|
plannercore.SetPreparedPlanCache(orgEnable)
|
|
}()
|
|
plannercore.SetPreparedPlanCache(true)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t28064")
|
|
tk.MustExec("CREATE TABLE `t28064` (" +
|
|
"`a` decimal(10,0) DEFAULT NULL," +
|
|
"`b` decimal(10,0) DEFAULT NULL," +
|
|
"`c` decimal(10,0) DEFAULT NULL," +
|
|
"`d` decimal(10,0) DEFAULT NULL," +
|
|
"KEY `iabc` (`a`,`b`,`c`));")
|
|
tk.MustExec("set @a='123', @b='234', @c='345';")
|
|
tk.MustExec("set @@tidb_enable_collect_execution_info=0;")
|
|
tk.MustExec("prepare stmt1 from 'select * from t28064 use index (iabc) where a = ? and b = ? and c = ?';")
|
|
|
|
tk.MustExec("execute stmt1 using @a, @b, @c;")
|
|
tkProcess := tk.Se.ShowProcess()
|
|
ps := []*util.ProcessInfo{tkProcess}
|
|
tk.Se.SetSessionManager(&mockSessionManager1{PS: ps})
|
|
rows := tk.MustQuery(fmt.Sprintf("explain for connection %d", tkProcess.ID))
|
|
rows.Check(testkit.Rows("Selection_8 0.00 root eq(test.t28064.a, 123), eq(test.t28064.b, 234), eq(test.t28064.c, 345)",
|
|
"└─IndexLookUp_7 0.00 root ",
|
|
" ├─IndexRangeScan_5(Build) 0.00 cop[tikv] table:t28064, index:iabc(a, b, c) range:[123 234 345,123 234 345], keep order:false, stats:pseudo",
|
|
" └─TableRowIDScan_6(Probe) 0.00 cop[tikv] table:t28064 keep order:false, stats:pseudo"))
|
|
|
|
tk.MustExec("execute stmt1 using @a, @b, @c;")
|
|
rows = tk.MustQuery("select @@last_plan_from_cache")
|
|
rows.Check(testkit.Rows("1"))
|
|
|
|
tk.MustExec("execute stmt1 using @a, @b, @c;")
|
|
rows = tk.MustQuery(fmt.Sprintf("explain for connection %d", tkProcess.ID))
|
|
rows.Check(testkit.Rows("Selection_8 0.00 root eq(test.t28064.a, 123), eq(test.t28064.b, 234), eq(test.t28064.c, 345)",
|
|
"└─IndexLookUp_7 0.00 root ",
|
|
" ├─IndexRangeScan_5(Build) 0.00 cop[tikv] table:t28064, index:iabc(a, b, c) range:[123 234 345,123 234 345], keep order:false, stats:pseudo",
|
|
" └─TableRowIDScan_6(Probe) 0.00 cop[tikv] table:t28064 keep order:false, stats:pseudo"))
|
|
}
|