1391 lines
64 KiB
Go
1391 lines
64 KiB
Go
// Copyright 2019 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 bindinfo_test
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import (
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"context"
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"fmt"
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"strconv"
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"testing"
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"github.com/pingcap/tidb/bindinfo"
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"github.com/pingcap/tidb/config"
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"github.com/pingcap/tidb/domain"
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"github.com/pingcap/tidb/parser"
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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/terror"
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"github.com/pingcap/tidb/testkit"
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"github.com/pingcap/tidb/util"
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utilparser "github.com/pingcap/tidb/util/parser"
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"github.com/pingcap/tidb/util/stmtsummary"
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"github.com/stretchr/testify/require"
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)
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func TestPrepareCacheWithBinding(t *testing.T) {
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store := testkit.CreateMockStore(t)
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tk := testkit.NewTestKit(t, store)
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tk.MustExec(`set tidb_enable_prepared_plan_cache=1`)
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tk.MustExec("set tidb_cost_model_version=2")
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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("create table t1(a int, b int, c int, key idx_b(b), key idx_c(c))")
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tk.MustExec("create table t2(a int, b int, c int, key idx_b(b), key idx_c(c))")
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// TestDMLSQLBind
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tk.MustExec("prepare stmt1 from 'delete from t1 where b = 1 and c > 1';")
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tk.MustExec("execute stmt1;")
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require.Equal(t, "t1:idx_b", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
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tkProcess := tk.Session().ShowProcess()
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ps := []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res := tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.MustUseIndex4ExplainFor(res, "idx_b(b)"), res.Rows())
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tk.MustExec("execute stmt1;")
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tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("1"))
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tk.MustExec("create global binding for delete from t1 where b = 1 and c > 1 using delete /*+ use_index(t1,idx_c) */ from t1 where b = 1 and c > 1")
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tk.MustExec("execute stmt1;")
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require.Equal(t, "t1:idx_c", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.MustUseIndex4ExplainFor(res, "idx_c(c)"), res.Rows())
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tk.MustExec("prepare stmt2 from 'delete t1, t2 from t1 inner join t2 on t1.b = t2.b';")
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tk.MustExec("execute stmt2;")
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.HasPlan4ExplainFor(res, "HashJoin"), res.Rows())
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tk.MustExec("execute stmt2;")
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tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("1"))
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tk.MustExec("create global binding for delete t1, t2 from t1 inner join t2 on t1.b = t2.b using delete /*+ inl_join(t1) */ t1, t2 from t1 inner join t2 on t1.b = t2.b")
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tk.MustExec("execute stmt2;")
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.HasPlan4ExplainFor(res, "IndexJoin"), res.Rows())
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tk.MustExec("prepare stmt3 from 'update t1 set a = 1 where b = 1 and c > 1';")
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tk.MustExec("execute stmt3;")
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require.Equal(t, "t1:idx_b", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.MustUseIndex4ExplainFor(res, "idx_b(b)"), res.Rows())
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tk.MustExec("execute stmt3;")
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tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("1"))
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tk.MustExec("create global binding for update t1 set a = 1 where b = 1 and c > 1 using update /*+ use_index(t1,idx_c) */ t1 set a = 1 where b = 1 and c > 1")
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tk.MustExec("execute stmt3;")
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require.Equal(t, "t1:idx_c", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.MustUseIndex4ExplainFor(res, "idx_c(c)"), res.Rows())
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tk.MustExec("prepare stmt4 from 'update t1, t2 set t1.a = 1 where t1.b = t2.b';")
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tk.MustExec("execute stmt4;")
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.HasPlan4ExplainFor(res, "HashJoin"), res.Rows())
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tk.MustExec("execute stmt4;")
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tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("1"))
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tk.MustExec("create global binding for update t1, t2 set t1.a = 1 where t1.b = t2.b using update /*+ inl_join(t1) */ t1, t2 set t1.a = 1 where t1.b = t2.b")
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tk.MustExec("execute stmt4;")
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.HasPlan4ExplainFor(res, "IndexJoin"), res.Rows())
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tk.MustExec("prepare stmt5 from 'insert into t1 select * from t2 where t2.b = 2 and t2.c > 2';")
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tk.MustExec("execute stmt5;")
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require.Equal(t, "t2:idx_b", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.MustUseIndex4ExplainFor(res, "idx_b(b)"), res.Rows())
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tk.MustExec("execute stmt5;")
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tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("1"))
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tk.MustExec("create global binding for insert into t1 select * from t2 where t2.b = 1 and t2.c > 1 using insert /*+ use_index(t2,idx_c) */ into t1 select * from t2 where t2.b = 1 and t2.c > 1")
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tk.MustExec("execute stmt5;")
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require.Equal(t, "t2:idx_b", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.MustUseIndex4ExplainFor(res, "idx_b(b)"), res.Rows())
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tk.MustExec("drop global binding for insert into t1 select * from t2 where t2.b = 1 and t2.c > 1")
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tk.MustExec("create global binding for insert into t1 select * from t2 where t2.b = 1 and t2.c > 1 using insert into t1 select /*+ use_index(t2,idx_c) */ * from t2 where t2.b = 1 and t2.c > 1")
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tk.MustExec("execute stmt5;")
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require.Equal(t, "t2:idx_c", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.MustUseIndex4ExplainFor(res, "idx_c(c)"), res.Rows())
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tk.MustExec("prepare stmt6 from 'replace into t1 select * from t2 where t2.b = 2 and t2.c > 2';")
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tk.MustExec("execute stmt6;")
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require.Equal(t, "t2:idx_b", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.MustUseIndex4ExplainFor(res, "idx_b(b)"), res.Rows())
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tk.MustExec("execute stmt6;")
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tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("1"))
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tk.MustExec("create global binding for replace into t1 select * from t2 where t2.b = 1 and t2.c > 1 using replace into t1 select /*+ use_index(t2,idx_c) */ * from t2 where t2.b = 1 and t2.c > 1")
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tk.MustExec("execute stmt6;")
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require.Equal(t, "t2:idx_c", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.MustUseIndex4ExplainFor(res, "idx_c(c)"), res.Rows())
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// TestExplain
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tk.MustExec("drop table if exists t1")
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tk.MustExec("drop table if exists t2")
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tk.MustExec("create table t1(id int)")
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tk.MustExec("create table t2(id int)")
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tk.MustExec("prepare stmt1 from 'SELECT * from t1,t2 where t1.id = t2.id';")
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tk.MustExec("execute stmt1;")
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.HasPlan4ExplainFor(res, "HashJoin"))
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tk.MustExec("execute stmt1;")
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tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("1"))
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tk.MustExec("prepare stmt2 from 'SELECT /*+ TIDB_SMJ(t1, t2) */ * from t1,t2 where t1.id = t2.id';")
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tk.MustExec("execute stmt2;")
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.HasPlan4ExplainFor(res, "MergeJoin"))
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tk.MustExec("execute stmt2;")
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tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("1"))
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tk.MustExec("create global binding for SELECT * from t1,t2 where t1.id = t2.id using SELECT /*+ TIDB_SMJ(t1, t2) */ * from t1,t2 where t1.id = t2.id")
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tk.MustExec("execute stmt1;")
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.HasPlan4ExplainFor(res, "MergeJoin"))
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tk.MustExec("drop global binding for SELECT * from t1,t2 where t1.id = t2.id")
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tk.MustExec("create index index_id on t1(id)")
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tk.MustExec("prepare stmt1 from 'SELECT * from t1 use index(index_id)';")
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tk.MustExec("execute stmt1;")
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.HasPlan4ExplainFor(res, "IndexReader"))
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tk.MustExec("execute stmt1;")
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tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("1"))
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tk.MustExec("create global binding for SELECT * from t1 using SELECT * from t1 ignore index(index_id)")
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tk.MustExec("execute stmt1;")
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.False(t, tk.HasPlan4ExplainFor(res, "IndexReader"))
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tk.MustExec("execute stmt1;")
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tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("1"))
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// Add test for SetOprStmt
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tk.MustExec("prepare stmt1 from 'SELECT * from t1 union SELECT * from t1';")
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tk.MustExec("execute stmt1;")
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.HasPlan4ExplainFor(res, "IndexReader"))
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tk.MustExec("execute stmt1;")
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tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("1"))
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tk.MustExec("prepare stmt2 from 'SELECT * from t1 use index(index_id) union SELECT * from t1';")
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tk.MustExec("execute stmt2;")
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.HasPlan4ExplainFor(res, "IndexReader"))
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tk.MustExec("execute stmt2;")
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tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("1"))
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tk.MustExec("create global binding for SELECT * from t1 union SELECT * from t1 using SELECT * from t1 use index(index_id) union SELECT * from t1")
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tk.MustExec("execute stmt1;")
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.HasPlan4ExplainFor(res, "IndexReader"))
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tk.MustExec("drop global binding for SELECT * from t1 union SELECT * from t1")
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// TestBindingSymbolList
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tk.MustExec("drop table if exists t")
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tk.MustExec("create table t(a int, b int, INDEX ia (a), INDEX ib (b));")
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tk.MustExec("insert into t value(1, 1);")
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tk.MustExec("prepare stmt1 from 'select a, b from t where a = 3 limit 1, 100';")
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tk.MustExec("execute stmt1;")
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require.Equal(t, "t:ia", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.MustUseIndex4ExplainFor(res, "ia(a)"), res.Rows())
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tk.MustExec("execute stmt1;")
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tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("1"))
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tk.MustExec(`create global binding for select a, b from t where a = 1 limit 0, 1 using select a, b from t use index (ib) where a = 1 limit 0, 1`)
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// after binding
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tk.MustExec("execute stmt1;")
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require.Equal(t, "t:ib", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
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tkProcess = tk.Session().ShowProcess()
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ps = []*util.ProcessInfo{tkProcess}
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tk.Session().SetSessionManager(&testkit.MockSessionManager{PS: ps})
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res = tk.MustQuery("explain for connection " + strconv.FormatUint(tkProcess.ID, 10))
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require.True(t, tk.MustUseIndex4ExplainFor(res, "ib(b)"), res.Rows())
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}
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func TestExplain(t *testing.T) {
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store := testkit.CreateMockStore(t)
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tk := testkit.NewTestKit(t, store)
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tk.MustExec("use test")
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tk.MustExec("set tidb_cost_model_version=2")
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tk.MustExec("drop table if exists t1")
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tk.MustExec("drop table if exists t2")
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tk.MustExec("create table t1(id int)")
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tk.MustExec("create table t2(id int)")
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require.True(t, tk.HasPlan("SELECT * from t1,t2 where t1.id = t2.id", "HashJoin"))
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require.True(t, tk.HasPlan("SELECT /*+ TIDB_SMJ(t1, t2) */ * from t1,t2 where t1.id = t2.id", "MergeJoin"))
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tk.MustExec("create global binding for SELECT * from t1,t2 where t1.id = t2.id using SELECT /*+ TIDB_SMJ(t1, t2) */ * from t1,t2 where t1.id = t2.id")
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require.True(t, tk.HasPlan("SELECT * from t1,t2 where t1.id = t2.id", "MergeJoin"))
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tk.MustExec("drop global binding for SELECT * from t1,t2 where t1.id = t2.id")
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// Add test for SetOprStmt
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tk.MustExec("create index index_id on t1(id)")
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require.True(t, tk.HasPlan("SELECT * from t1 union SELECT * from t1", "IndexReader"))
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require.True(t, tk.HasPlan("SELECT * from t1 use index(index_id) union SELECT * from t1", "IndexReader"))
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tk.MustExec("create global binding for SELECT * from t1 union SELECT * from t1 using SELECT * from t1 use index(index_id) union SELECT * from t1")
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require.True(t, tk.HasPlan("SELECT * from t1 union SELECT * from t1", "IndexReader"))
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tk.MustExec("drop global binding for SELECT * from t1 union SELECT * from t1")
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}
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func TestBindSemiJoinRewrite(t *testing.T) {
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store := testkit.CreateMockStore(t)
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tk := testkit.NewTestKit(t, store)
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tk.MustExec("use test")
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tk.MustExec("drop table if exists t1")
|
|
tk.MustExec("drop table if exists t2")
|
|
tk.MustExec("create table t1(id int)")
|
|
tk.MustExec("create table t2(id int)")
|
|
require.True(t, tk.HasKeywordInOperatorInfo("select * from t1 where exists(select 1 from t2 where t1.id=t2.id)", "semi join"))
|
|
require.True(t, tk.NotHasKeywordInOperatorInfo("select * from t1 where exists(select /*+ SEMI_JOIN_REWRITE() */ 1 from t2 where t1.id=t2.id)", "semi join"))
|
|
|
|
tk.MustExec(`
|
|
create global binding for
|
|
select * from t1 where exists(select 1 from t2 where t1.id=t2.id)
|
|
using
|
|
select * from t1 where exists(select /*+ SEMI_JOIN_REWRITE() */ 1 from t2 where t1.id=t2.id)
|
|
`)
|
|
|
|
require.True(t, tk.NotHasKeywordInOperatorInfo("select * from t1 where exists(select 1 from t2 where t1.id=t2.id)", "semi join"))
|
|
}
|
|
|
|
func TestBindCTEMerge(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("create table t1(id int)")
|
|
require.True(t, tk.HasPlan("with cte as (select * from t1) select * from cte a, cte b", "CTEFullScan"))
|
|
require.False(t, tk.HasPlan("with cte as (select /*+ MERGE() */ * from t1) select * from cte a, cte b", "CTEFullScan"))
|
|
tk.MustExec(`
|
|
create global binding for
|
|
with cte as (select * from t1) select * from cte
|
|
using
|
|
with cte as (select /*+ MERGE() */ * from t1) select * from cte
|
|
`)
|
|
|
|
require.False(t, tk.HasPlan("with cte as (select * from t1) select * from cte", "CTEFullScan"))
|
|
}
|
|
|
|
func TestBindNoDecorrelate(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)")
|
|
require.False(t, tk.HasPlan("select exists (select t2.b from t2 where t2.a = t1.b limit 2) from t1", "Apply"))
|
|
require.True(t, tk.HasPlan("select exists (select /*+ no_decorrelate() */ t2.b from t2 where t2.a = t1.b limit 2) from t1", "Apply"))
|
|
|
|
tk.MustExec(`
|
|
create global binding for
|
|
select exists (select t2.b from t2 where t2.a = t1.b limit 2) from t1
|
|
using
|
|
select exists (select /*+ no_decorrelate() */ t2.b from t2 where t2.a = t1.b limit 2) from t1
|
|
`)
|
|
|
|
require.True(t, tk.HasPlan("select exists (select t2.b from t2 where t2.a = t1.b limit 2) from t1", "Apply"))
|
|
}
|
|
|
|
// TestBindingSymbolList tests sql with "?, ?, ?, ?", fixes #13871
|
|
func TestBindingSymbolList(t *testing.T) {
|
|
store, dom := testkit.CreateMockStoreAndDomain(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 ia (a), INDEX ib (b));")
|
|
tk.MustExec("insert into t value(1, 1);")
|
|
|
|
// before binding
|
|
tk.MustQuery("select a, b from t where a = 3 limit 1, 100")
|
|
require.Equal(t, "t:ia", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("select a, b from t where a = 3 limit 1, 100", "ia(a)"))
|
|
|
|
tk.MustExec(`create global binding for select a, b from t where a = 1 limit 0, 1 using select a, b from t use index (ib) where a = 1 limit 0, 1`)
|
|
|
|
// after binding
|
|
tk.MustQuery("select a, b from t where a = 3 limit 1, 100")
|
|
require.Equal(t, "t:ib", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("select a, b from t where a = 3 limit 1, 100", "ib(b)"))
|
|
|
|
// Normalize
|
|
sql, hash := parser.NormalizeDigest("select a, b from test . t where a = 1 limit 0, 1")
|
|
|
|
bindData := dom.BindHandle().GetBindRecord(hash.String(), sql, "test")
|
|
require.NotNil(t, bindData)
|
|
require.Equal(t, "select `a` , `b` from `test` . `t` where `a` = ? limit ...", bindData.OriginalSQL)
|
|
bind := bindData.Bindings[0]
|
|
require.Equal(t, "SELECT `a`,`b` FROM `test`.`t` USE INDEX (`ib`) WHERE `a` = 1 LIMIT 0,1", bind.BindSQL)
|
|
require.Equal(t, "test", bindData.Db)
|
|
require.Equal(t, bindinfo.Enabled, bind.Status)
|
|
require.NotNil(t, bind.Charset)
|
|
require.NotNil(t, bind.Collation)
|
|
require.NotNil(t, bind.CreateTime)
|
|
require.NotNil(t, bind.UpdateTime)
|
|
}
|
|
|
|
func TestDMLSQLBind(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(a int, b int, c int, key idx_b(b), key idx_c(c))")
|
|
tk.MustExec("create table t2(a int, b int, c int, key idx_b(b), key idx_c(c))")
|
|
|
|
tk.MustExec("delete from t1 where b = 1 and c > 1")
|
|
require.Equal(t, "t1:idx_b", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("delete from t1 where b = 1 and c > 1", "idx_b(b)"))
|
|
tk.MustExec("create global binding for delete from t1 where b = 1 and c > 1 using delete /*+ use_index(t1,idx_c) */ from t1 where b = 1 and c > 1")
|
|
tk.MustExec("delete from t1 where b = 1 and c > 1")
|
|
require.Equal(t, "t1:idx_c", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("delete from t1 where b = 1 and c > 1", "idx_c(c)"))
|
|
|
|
require.True(t, tk.HasPlan("delete t1, t2 from t1 inner join t2 on t1.b = t2.b", "HashJoin"))
|
|
tk.MustExec("create global binding for delete t1, t2 from t1 inner join t2 on t1.b = t2.b using delete /*+ inl_join(t1) */ t1, t2 from t1 inner join t2 on t1.b = t2.b")
|
|
require.True(t, tk.HasPlan("delete t1, t2 from t1 inner join t2 on t1.b = t2.b", "IndexJoin"))
|
|
|
|
tk.MustExec("update t1 set a = 1 where b = 1 and c > 1")
|
|
require.Equal(t, "t1:idx_b", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("update t1 set a = 1 where b = 1 and c > 1", "idx_b(b)"))
|
|
tk.MustExec("create global binding for update t1 set a = 1 where b = 1 and c > 1 using update /*+ use_index(t1,idx_c) */ t1 set a = 1 where b = 1 and c > 1")
|
|
tk.MustExec("delete from t1 where b = 1 and c > 1")
|
|
require.Equal(t, "t1:idx_c", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("update t1 set a = 1 where b = 1 and c > 1", "idx_c(c)"))
|
|
|
|
require.True(t, tk.HasPlan("update t1, t2 set t1.a = 1 where t1.b = t2.b", "HashJoin"))
|
|
tk.MustExec("create global binding for update t1, t2 set t1.a = 1 where t1.b = t2.b using update /*+ inl_join(t1) */ t1, t2 set t1.a = 1 where t1.b = t2.b")
|
|
require.True(t, tk.HasPlan("update t1, t2 set t1.a = 1 where t1.b = t2.b", "IndexJoin"))
|
|
|
|
tk.MustExec("insert into t1 select * from t2 where t2.b = 2 and t2.c > 2")
|
|
require.Equal(t, "t2:idx_b", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("insert into t1 select * from t2 where t2.b = 2 and t2.c > 2", "idx_b(b)"))
|
|
tk.MustExec("create global binding for insert into t1 select * from t2 where t2.b = 1 and t2.c > 1 using insert /*+ use_index(t2,idx_c) */ into t1 select * from t2 where t2.b = 1 and t2.c > 1")
|
|
tk.MustExec("insert into t1 select * from t2 where t2.b = 2 and t2.c > 2")
|
|
require.Equal(t, "t2:idx_b", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("insert into t1 select * from t2 where t2.b = 2 and t2.c > 2", "idx_b(b)"))
|
|
tk.MustExec("drop global binding for insert into t1 select * from t2 where t2.b = 1 and t2.c > 1")
|
|
tk.MustExec("create global binding for insert into t1 select * from t2 where t2.b = 1 and t2.c > 1 using insert into t1 select /*+ use_index(t2,idx_c) */ * from t2 where t2.b = 1 and t2.c > 1")
|
|
tk.MustExec("insert into t1 select * from t2 where t2.b = 2 and t2.c > 2")
|
|
require.Equal(t, "t2:idx_c", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("insert into t1 select * from t2 where t2.b = 2 and t2.c > 2", "idx_c(c)"))
|
|
|
|
tk.MustExec("replace into t1 select * from t2 where t2.b = 2 and t2.c > 2")
|
|
require.Equal(t, "t2:idx_b", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("replace into t1 select * from t2 where t2.b = 2 and t2.c > 2", "idx_b(b)"))
|
|
tk.MustExec("create global binding for replace into t1 select * from t2 where t2.b = 1 and t2.c > 1 using replace into t1 select /*+ use_index(t2,idx_c) */ * from t2 where t2.b = 1 and t2.c > 1")
|
|
tk.MustExec("replace into t1 select * from t2 where t2.b = 2 and t2.c > 2")
|
|
require.Equal(t, "t2:idx_c", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("replace into t1 select * from t2 where t2.b = 2 and t2.c > 2", "idx_c(c)"))
|
|
}
|
|
|
|
func TestBestPlanInBaselines(t *testing.T) {
|
|
store, dom := testkit.CreateMockStoreAndDomain(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 ia (a), INDEX ib (b));")
|
|
tk.MustExec("insert into t value(1, 1);")
|
|
|
|
// before binding
|
|
tk.MustQuery("select a, b from t where a = 3 limit 1, 100")
|
|
require.Equal(t, "t:ia", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("select a, b from t where a = 3 limit 1, 100", "ia(a)"))
|
|
|
|
tk.MustQuery("select a, b from t where b = 3 limit 1, 100")
|
|
require.Equal(t, "t:ib", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("select a, b from t where b = 3 limit 1, 100", "ib(b)"))
|
|
|
|
tk.MustExec(`create global binding for select a, b from t where a = 1 limit 0, 1 using select /*+ use_index(@sel_1 test.t ia) */ a, b from t where a = 1 limit 0, 1`)
|
|
tk.MustExec(`create global binding for select a, b from t where b = 1 limit 0, 1 using select /*+ use_index(@sel_1 test.t ib) */ a, b from t where b = 1 limit 0, 1`)
|
|
|
|
sql, hash := utilNormalizeWithDefaultDB(t, "select a, b from t where a = 1 limit 0, 1", "test")
|
|
bindData := dom.BindHandle().GetBindRecord(hash, sql, "test")
|
|
require.NotNil(t, bindData)
|
|
require.Equal(t, "select `a` , `b` from `test` . `t` where `a` = ? limit ...", bindData.OriginalSQL)
|
|
bind := bindData.Bindings[0]
|
|
require.Equal(t, "SELECT /*+ use_index(@`sel_1` `test`.`t` `ia`)*/ `a`,`b` FROM `test`.`t` WHERE `a` = 1 LIMIT 0,1", bind.BindSQL)
|
|
require.Equal(t, "test", bindData.Db)
|
|
require.Equal(t, bindinfo.Enabled, bind.Status)
|
|
|
|
tk.MustQuery("select a, b from t where a = 3 limit 1, 10")
|
|
require.Equal(t, "t:ia", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("select a, b from t where a = 3 limit 1, 100", "ia(a)"))
|
|
|
|
tk.MustQuery("select a, b from t where b = 3 limit 1, 100")
|
|
require.Equal(t, "t:ib", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("select a, b from t where b = 3 limit 1, 100", "ib(b)"))
|
|
}
|
|
|
|
func TestErrorBind(t *testing.T) {
|
|
store, dom := testkit.CreateMockStoreAndDomain(t)
|
|
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustGetErrMsg("create global binding for select * from t using select * from t", "[schema:1146]Table 'test.t' doesn't exist")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("drop table if exists t1")
|
|
tk.MustExec("create table t(i int, s varchar(20))")
|
|
tk.MustExec("create table t1(i int, s varchar(20))")
|
|
tk.MustExec("create index index_t on t(i,s)")
|
|
|
|
_, err := tk.Exec("create global binding for select * from t where i>100 using select * from t use index(index_t) where i>100")
|
|
require.NoError(t, err, "err %v", err)
|
|
|
|
sql, hash := parser.NormalizeDigest("select * from test . t where i > ?")
|
|
bindData := dom.BindHandle().GetBindRecord(hash.String(), sql, "test")
|
|
require.NotNil(t, bindData)
|
|
require.Equal(t, "select * from `test` . `t` where `i` > ?", bindData.OriginalSQL)
|
|
bind := bindData.Bindings[0]
|
|
require.Equal(t, "SELECT * FROM `test`.`t` USE INDEX (`index_t`) WHERE `i` > 100", bind.BindSQL)
|
|
require.Equal(t, "test", bindData.Db)
|
|
require.Equal(t, bindinfo.Enabled, bind.Status)
|
|
require.NotNil(t, bind.Charset)
|
|
require.NotNil(t, bind.Collation)
|
|
require.NotNil(t, bind.CreateTime)
|
|
require.NotNil(t, bind.UpdateTime)
|
|
|
|
tk.MustExec("drop index index_t on t")
|
|
rs, err := tk.Exec("select * from t where i > 10")
|
|
require.NoError(t, err)
|
|
rs.Close()
|
|
|
|
dom.BindHandle().DropInvalidBindRecord()
|
|
|
|
rs, err = tk.Exec("show global bindings")
|
|
require.NoError(t, err)
|
|
chk := rs.NewChunk(nil)
|
|
err = rs.Next(context.TODO(), chk)
|
|
require.NoError(t, err)
|
|
require.Equal(t, 0, chk.NumRows())
|
|
}
|
|
|
|
func TestDMLEvolveBaselines(t *testing.T) {
|
|
originalVal := config.CheckTableBeforeDrop
|
|
config.CheckTableBeforeDrop = true
|
|
defer func() {
|
|
config.CheckTableBeforeDrop = originalVal
|
|
}()
|
|
|
|
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, index idx_b(b), index idx_c(c))")
|
|
tk.MustExec("insert into t values (1,1,1), (2,2,2), (3,3,3), (4,4,4), (5,5,5)")
|
|
tk.MustExec("analyze table t")
|
|
tk.MustExec("set @@tidb_evolve_plan_baselines=1")
|
|
|
|
tk.MustExec("create global binding for delete from t where b = 1 and c > 1 using delete /*+ use_index(t,idx_c) */ from t where b = 1 and c > 1")
|
|
rows := tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 1)
|
|
tk.MustExec("delete /*+ use_index(t,idx_b) */ from t where b = 2 and c > 1")
|
|
require.Equal(t, "t:idx_c", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
tk.MustExec("admin flush bindings")
|
|
rows = tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 1)
|
|
tk.MustExec("admin evolve bindings")
|
|
rows = tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 1)
|
|
|
|
tk.MustExec("create global binding for update t set a = 1 where b = 1 and c > 1 using update /*+ use_index(t,idx_c) */ t set a = 1 where b = 1 and c > 1")
|
|
rows = tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 2)
|
|
tk.MustExec("update /*+ use_index(t,idx_b) */ t set a = 2 where b = 2 and c > 1")
|
|
require.Equal(t, "t:idx_c", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
tk.MustExec("admin flush bindings")
|
|
rows = tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 2)
|
|
tk.MustExec("admin evolve bindings")
|
|
rows = tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 2)
|
|
|
|
tk.MustExec("create table t1 like t")
|
|
tk.MustExec("create global binding for insert into t1 select * from t where t.b = 1 and t.c > 1 using insert into t1 select /*+ use_index(t,idx_c) */ * from t where t.b = 1 and t.c > 1")
|
|
rows = tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 3)
|
|
tk.MustExec("insert into t1 select /*+ use_index(t,idx_b) */ * from t where t.b = 2 and t.c > 2")
|
|
require.Equal(t, "t:idx_c", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
tk.MustExec("admin flush bindings")
|
|
rows = tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 3)
|
|
tk.MustExec("admin evolve bindings")
|
|
rows = tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 3)
|
|
|
|
tk.MustExec("create global binding for replace into t1 select * from t where t.b = 1 and t.c > 1 using replace into t1 select /*+ use_index(t,idx_c) */ * from t where t.b = 1 and t.c > 1")
|
|
rows = tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 4)
|
|
tk.MustExec("replace into t1 select /*+ use_index(t,idx_b) */ * from t where t.b = 2 and t.c > 2")
|
|
require.Equal(t, "t:idx_c", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
tk.MustExec("admin flush bindings")
|
|
rows = tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 4)
|
|
tk.MustExec("admin evolve bindings")
|
|
rows = tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 4)
|
|
}
|
|
|
|
func TestAddEvolveTasks(t *testing.T) {
|
|
originalVal := config.CheckTableBeforeDrop
|
|
config.CheckTableBeforeDrop = true
|
|
defer func() {
|
|
config.CheckTableBeforeDrop = originalVal
|
|
}()
|
|
|
|
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, index idx_a(a), index idx_b(b), index idx_c(c))")
|
|
tk.MustExec("insert into t values (1,1,1), (2,2,2), (3,3,3), (4,4,4), (5,5,5)")
|
|
tk.MustExec("analyze table t")
|
|
tk.MustExec("create global binding for select * from t where a >= 1 and b >= 1 and c = 0 using select * from t use index(idx_a) where a >= 1 and b >= 1 and c = 0")
|
|
tk.MustExec("set @@tidb_evolve_plan_baselines=1")
|
|
// It cannot choose table path although it has lowest cost.
|
|
tk.MustQuery("select * from t where a >= 4 and b >= 1 and c = 0")
|
|
require.Equal(t, "t:idx_a", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
tk.MustExec("admin flush bindings")
|
|
rows := tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 2)
|
|
require.Equal(t, "SELECT /*+ use_index(@`sel_1` `test`.`t` )*/ * FROM `test`.`t` WHERE `a` >= 4 AND `b` >= 1 AND `c` = 0", rows[0][1])
|
|
require.Equal(t, "pending verify", rows[0][3])
|
|
tk.MustExec("admin evolve bindings")
|
|
rows = tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 2)
|
|
require.Equal(t, "SELECT /*+ use_index(@`sel_1` `test`.`t` )*/ * FROM `test`.`t` WHERE `a` >= 4 AND `b` >= 1 AND `c` = 0", rows[0][1])
|
|
status := rows[0][3].(string)
|
|
require.True(t, status == bindinfo.Enabled || status == bindinfo.Rejected)
|
|
}
|
|
|
|
func TestRuntimeHintsInEvolveTasks(t *testing.T) {
|
|
originalVal := config.CheckTableBeforeDrop
|
|
config.CheckTableBeforeDrop = true
|
|
defer func() {
|
|
config.CheckTableBeforeDrop = originalVal
|
|
}()
|
|
|
|
store := testkit.CreateMockStore(t)
|
|
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("set @@tidb_evolve_plan_baselines=1")
|
|
tk.MustExec("create table t(a int, b int, c int, index idx_a(a), index idx_b(b), index idx_c(c))")
|
|
|
|
tk.MustExec("create global binding for select * from t where a >= 1 and b >= 1 and c = 0 using select * from t use index(idx_a) where a >= 1 and b >= 1 and c = 0")
|
|
tk.MustQuery("select /*+ MAX_EXECUTION_TIME(5000) */ * from t where a >= 4 and b >= 1 and c = 0")
|
|
tk.MustExec("admin flush bindings")
|
|
rows := tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 2)
|
|
require.Equal(t, "SELECT /*+ use_index(@`sel_1` `test`.`t` `idx_c`), max_execution_time(5000)*/ * FROM `test`.`t` WHERE `a` >= 4 AND `b` >= 1 AND `c` = 0", rows[0][1])
|
|
}
|
|
|
|
func TestDefaultSessionVars(t *testing.T) {
|
|
store := testkit.CreateMockStore(t)
|
|
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustQuery(`show variables like "%baselines%"`).Sort().Check(testkit.Rows(
|
|
"tidb_capture_plan_baselines OFF",
|
|
"tidb_evolve_plan_baselines OFF",
|
|
"tidb_use_plan_baselines ON"))
|
|
tk.MustQuery(`show global variables like "%baselines%"`).Sort().Check(testkit.Rows(
|
|
"tidb_capture_plan_baselines OFF",
|
|
"tidb_evolve_plan_baselines OFF",
|
|
"tidb_use_plan_baselines ON"))
|
|
}
|
|
|
|
func TestCaptureBaselinesScope(t *testing.T) {
|
|
store, dom := testkit.CreateMockStoreAndDomain(t)
|
|
|
|
tk1 := testkit.NewTestKit(t, store)
|
|
tk2 := testkit.NewTestKit(t, store)
|
|
|
|
utilCleanBindingEnv(tk1, dom)
|
|
tk1.MustQuery(`show session variables like "tidb_capture_plan_baselines"`).Check(testkit.Rows(
|
|
"tidb_capture_plan_baselines OFF",
|
|
))
|
|
tk1.MustQuery(`show global variables like "tidb_capture_plan_baselines"`).Check(testkit.Rows(
|
|
"tidb_capture_plan_baselines OFF",
|
|
))
|
|
tk1.MustQuery(`select @@global.tidb_capture_plan_baselines`).Check(testkit.Rows(
|
|
"0",
|
|
))
|
|
|
|
tk1.MustExec("SET GLOBAL tidb_capture_plan_baselines = on")
|
|
defer func() {
|
|
tk1.MustExec(" set GLOBAL tidb_capture_plan_baselines = off")
|
|
}()
|
|
|
|
tk1.MustQuery(`show variables like "tidb_capture_plan_baselines"`).Check(testkit.Rows(
|
|
"tidb_capture_plan_baselines ON",
|
|
))
|
|
tk1.MustQuery(`show global variables like "tidb_capture_plan_baselines"`).Check(testkit.Rows(
|
|
"tidb_capture_plan_baselines ON",
|
|
))
|
|
tk2.MustQuery(`show global variables like "tidb_capture_plan_baselines"`).Check(testkit.Rows(
|
|
"tidb_capture_plan_baselines ON",
|
|
))
|
|
tk2.MustQuery(`select @@global.tidb_capture_plan_baselines`).Check(testkit.Rows(
|
|
"1",
|
|
))
|
|
}
|
|
|
|
func TestStmtHints(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 idx(a))")
|
|
tk.MustExec("create global binding for select * from t using select /*+ MAX_EXECUTION_TIME(100), MEMORY_QUOTA(2 GB) */ * from t use index(idx)")
|
|
tk.MustQuery("select * from t")
|
|
require.Equal(t, int64(2147483648), tk.Session().GetSessionVars().MemTracker.GetBytesLimit())
|
|
require.Equal(t, uint64(100), tk.Session().GetSessionVars().StmtCtx.MaxExecutionTime)
|
|
tk.MustQuery("select a, b from t")
|
|
require.Equal(t, int64(1073741824), tk.Session().GetSessionVars().MemTracker.GetBytesLimit())
|
|
require.Equal(t, uint64(0), tk.Session().GetSessionVars().StmtCtx.MaxExecutionTime)
|
|
}
|
|
|
|
func TestPrivileges(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 idx(a))")
|
|
tk.MustExec("create global binding for select * from t using select * from t use index(idx)")
|
|
require.NoError(t, tk.Session().Auth(&auth.UserIdentity{Username: "root", Hostname: "%"}, nil, nil))
|
|
rows := tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 1)
|
|
tk.MustExec("create user test@'%'")
|
|
require.NoError(t, tk.Session().Auth(&auth.UserIdentity{Username: "test", Hostname: "%"}, nil, nil))
|
|
rows = tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 0)
|
|
}
|
|
|
|
func TestHintsSetEvolveTask(t *testing.T) {
|
|
originalVal := config.CheckTableBeforeDrop
|
|
config.CheckTableBeforeDrop = true
|
|
defer func() {
|
|
config.CheckTableBeforeDrop = originalVal
|
|
}()
|
|
|
|
store, dom := testkit.CreateMockStoreAndDomain(t)
|
|
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t(a int, index idx_a(a))")
|
|
tk.MustExec("create global binding for select * from t where a > 10 using select * from t ignore index(idx_a) where a > 10")
|
|
tk.MustExec("set @@tidb_evolve_plan_baselines=1")
|
|
tk.MustQuery("select * from t use index(idx_a) where a > 0")
|
|
bindHandle := dom.BindHandle()
|
|
bindHandle.SaveEvolveTasksToStore()
|
|
// Verify the added Binding for evolution contains valid ID and Hint, otherwise, panic may happen.
|
|
sql, hash := utilNormalizeWithDefaultDB(t, "select * from t where a > ?", "test")
|
|
bindData := bindHandle.GetBindRecord(hash, sql, "test")
|
|
require.NotNil(t, bindData)
|
|
require.Equal(t, "select * from `test` . `t` where `a` > ?", bindData.OriginalSQL)
|
|
require.Len(t, bindData.Bindings, 2)
|
|
bind := bindData.Bindings[1]
|
|
require.Equal(t, bindinfo.PendingVerify, bind.Status)
|
|
require.NotEqual(t, "", bind.ID)
|
|
require.NotNil(t, bind.Hint)
|
|
}
|
|
|
|
func TestHintsSetID(t *testing.T) {
|
|
store, dom := testkit.CreateMockStoreAndDomain(t)
|
|
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t(a int, index idx_a(a))")
|
|
tk.MustExec("create global binding for select * from t where a > 10 using select /*+ use_index(test.t, idx_a) */ * from t where a > 10")
|
|
bindHandle := dom.BindHandle()
|
|
// Verify the added Binding contains ID with restored query block.
|
|
sql, hash := utilNormalizeWithDefaultDB(t, "select * from t where a > ?", "test")
|
|
bindData := bindHandle.GetBindRecord(hash, sql, "test")
|
|
require.NotNil(t, bindData)
|
|
require.Equal(t, "select * from `test` . `t` where `a` > ?", bindData.OriginalSQL)
|
|
require.Len(t, bindData.Bindings, 1)
|
|
bind := bindData.Bindings[0]
|
|
require.Equal(t, "use_index(@`sel_1` `test`.`t` `idx_a`)", bind.ID)
|
|
|
|
utilCleanBindingEnv(tk, dom)
|
|
tk.MustExec("create global binding for select * from t where a > 10 using select /*+ use_index(t, idx_a) */ * from t where a > 10")
|
|
bindData = bindHandle.GetBindRecord(hash, sql, "test")
|
|
require.NotNil(t, bindData)
|
|
require.Equal(t, "select * from `test` . `t` where `a` > ?", bindData.OriginalSQL)
|
|
require.Len(t, bindData.Bindings, 1)
|
|
bind = bindData.Bindings[0]
|
|
require.Equal(t, "use_index(@`sel_1` `test`.`t` `idx_a`)", bind.ID)
|
|
|
|
utilCleanBindingEnv(tk, dom)
|
|
tk.MustExec("create global binding for select * from t where a > 10 using select /*+ use_index(@sel_1 t, idx_a) */ * from t where a > 10")
|
|
bindData = bindHandle.GetBindRecord(hash, sql, "test")
|
|
require.NotNil(t, bindData)
|
|
require.Equal(t, "select * from `test` . `t` where `a` > ?", bindData.OriginalSQL)
|
|
require.Len(t, bindData.Bindings, 1)
|
|
bind = bindData.Bindings[0]
|
|
require.Equal(t, "use_index(@`sel_1` `test`.`t` `idx_a`)", bind.ID)
|
|
|
|
utilCleanBindingEnv(tk, dom)
|
|
tk.MustExec("create global binding for select * from t where a > 10 using select /*+ use_index(@qb1 t, idx_a) qb_name(qb1) */ * from t where a > 10")
|
|
bindData = bindHandle.GetBindRecord(hash, sql, "test")
|
|
require.NotNil(t, bindData)
|
|
require.Equal(t, "select * from `test` . `t` where `a` > ?", bindData.OriginalSQL)
|
|
require.Len(t, bindData.Bindings, 1)
|
|
bind = bindData.Bindings[0]
|
|
require.Equal(t, "use_index(@`sel_1` `test`.`t` `idx_a`)", bind.ID)
|
|
|
|
utilCleanBindingEnv(tk, dom)
|
|
tk.MustExec("create global binding for select * from t where a > 10 using select /*+ use_index(T, IDX_A) */ * from t where a > 10")
|
|
bindData = bindHandle.GetBindRecord(hash, sql, "test")
|
|
require.NotNil(t, bindData)
|
|
require.Equal(t, "select * from `test` . `t` where `a` > ?", bindData.OriginalSQL)
|
|
require.Len(t, bindData.Bindings, 1)
|
|
bind = bindData.Bindings[0]
|
|
require.Equal(t, "use_index(@`sel_1` `test`.`t` `idx_a`)", bind.ID)
|
|
|
|
utilCleanBindingEnv(tk, dom)
|
|
err := tk.ExecToErr("create global binding for select * from t using select /*+ non_exist_hint() */ * from t")
|
|
require.True(t, terror.ErrorEqual(err, parser.ErrParse))
|
|
tk.MustExec("create global binding for select * from t where a > 10 using select * from t where a > 10")
|
|
bindData = bindHandle.GetBindRecord(hash, sql, "test")
|
|
require.NotNil(t, bindData)
|
|
require.Equal(t, "select * from `test` . `t` where `a` > ?", bindData.OriginalSQL)
|
|
require.Len(t, bindData.Bindings, 1)
|
|
bind = bindData.Bindings[0]
|
|
require.Equal(t, "", bind.ID)
|
|
}
|
|
|
|
func TestNotEvolvePlanForReadStorageHint(t *testing.T) {
|
|
originalVal := config.CheckTableBeforeDrop
|
|
config.CheckTableBeforeDrop = true
|
|
defer func() {
|
|
config.CheckTableBeforeDrop = originalVal
|
|
}()
|
|
|
|
store := testkit.CreateMockStore(t)
|
|
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("set tidb_cost_model_version=2")
|
|
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("insert into t values (1,1), (2,2), (3,3), (4,4), (5,5), (6,6), (7,7), (8,8), (9,9), (10,10)")
|
|
tk.MustExec("analyze table t")
|
|
// Create virtual tiflash replica info.
|
|
dom := domain.GetDomain(tk.Session())
|
|
is := dom.InfoSchema()
|
|
db, exists := is.SchemaByName(model.NewCIStr("test"))
|
|
require.True(t, exists)
|
|
for _, tblInfo := range db.Tables {
|
|
if tblInfo.Name.L == "t" {
|
|
tblInfo.TiFlashReplica = &model.TiFlashReplicaInfo{
|
|
Count: 1,
|
|
Available: true,
|
|
}
|
|
}
|
|
}
|
|
|
|
// Make sure the best plan of the SQL is use TiKV index.
|
|
tk.MustExec("set @@session.tidb_executor_concurrency = 4; set @@tidb_allow_mpp=0;")
|
|
rows := tk.MustQuery("explain select * from t where a >= 11 and b >= 11").Rows()
|
|
require.Equal(t, "cop[tikv]", fmt.Sprintf("%v", rows[len(rows)-1][2]))
|
|
tk.MustExec("set @@tidb_allow_mpp=1")
|
|
|
|
tk.MustExec("create global binding for select * from t where a >= 1 and b >= 1 using select /*+ read_from_storage(tiflash[t]) */ * from t where a >= 1 and b >= 1")
|
|
tk.MustExec("set @@tidb_evolve_plan_baselines=1")
|
|
|
|
// Even if index of TiKV has lower cost, it chooses TiFlash.
|
|
rows = tk.MustQuery("explain select * from t where a >= 11 and b >= 11").Rows()
|
|
require.Equal(t, "mpp[tiflash]", fmt.Sprintf("%v", rows[len(rows)-1][2]))
|
|
|
|
tk.MustExec("admin flush bindings")
|
|
rows = tk.MustQuery("show global bindings").Rows()
|
|
// None evolve task, because of the origin binding is a read_from_storage binding.
|
|
require.Len(t, rows, 1)
|
|
require.Equal(t, "SELECT /*+ read_from_storage(tiflash[`t`])*/ * FROM `test`.`t` WHERE `a` >= 1 AND `b` >= 1", rows[0][1])
|
|
require.Equal(t, bindinfo.Enabled, rows[0][3])
|
|
}
|
|
|
|
func TestBindingWithIsolationRead(t *testing.T) {
|
|
store := testkit.CreateMockStore(t)
|
|
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("set tidb_cost_model_version=2")
|
|
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("insert into t values (1,1), (2,2), (3,3), (4,4), (5,5), (6,6), (7,7), (8,8), (9,9), (10,10)")
|
|
tk.MustExec("analyze table t")
|
|
// Create virtual tiflash replica info.
|
|
dom := domain.GetDomain(tk.Session())
|
|
is := dom.InfoSchema()
|
|
db, exists := is.SchemaByName(model.NewCIStr("test"))
|
|
require.True(t, exists)
|
|
for _, tblInfo := range db.Tables {
|
|
if tblInfo.Name.L == "t" {
|
|
tblInfo.TiFlashReplica = &model.TiFlashReplicaInfo{
|
|
Count: 1,
|
|
Available: true,
|
|
}
|
|
}
|
|
}
|
|
tk.MustExec("create global binding for select * from t where a >= 1 and b >= 1 using select * from t use index(idx_a) where a >= 1 and b >= 1")
|
|
tk.MustExec("set @@tidb_use_plan_baselines = 1")
|
|
rows := tk.MustQuery("explain select * from t where a >= 11 and b >= 11").Rows()
|
|
require.Equal(t, "cop[tikv]", rows[len(rows)-1][2])
|
|
// Even if we build a binding use index for SQL, but after we set the isolation read for TiFlash, it choose TiFlash instead of index of TiKV.
|
|
tk.MustExec("set @@tidb_isolation_read_engines = \"tiflash\"")
|
|
rows = tk.MustQuery("explain select * from t where a >= 11 and b >= 11").Rows()
|
|
require.Equal(t, "mpp[tiflash]", rows[len(rows)-1][2])
|
|
}
|
|
|
|
func TestReCreateBindAfterEvolvePlan(t *testing.T) {
|
|
originalVal := config.CheckTableBeforeDrop
|
|
config.CheckTableBeforeDrop = true
|
|
defer func() {
|
|
config.CheckTableBeforeDrop = originalVal
|
|
}()
|
|
|
|
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, index idx_a(a), index idx_b(b), index idx_c(c))")
|
|
tk.MustExec("insert into t values (1,1,1), (2,2,2), (3,3,3), (4,4,4), (5,5,5)")
|
|
tk.MustExec("analyze table t")
|
|
tk.MustExec("create global binding for select * from t where a >= 1 and b >= 1 using select * from t use index(idx_a) where a >= 1 and b >= 1")
|
|
tk.MustExec("set @@tidb_evolve_plan_baselines=1")
|
|
|
|
// It cannot choose table path although it has lowest cost.
|
|
tk.MustQuery("select * from t where a >= 0 and b >= 0")
|
|
require.Equal(t, "t:idx_a", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
|
|
tk.MustExec("admin flush bindings")
|
|
rows := tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 2)
|
|
require.Equal(t, "SELECT /*+ use_index(@`sel_1` `test`.`t` )*/ * FROM `test`.`t` WHERE `a` >= 0 AND `b` >= 0", rows[0][1])
|
|
require.Equal(t, "pending verify", rows[0][3])
|
|
|
|
tk.MustExec("create global binding for select * from t where a >= 1 and b >= 1 using select * from t use index(idx_b) where a >= 1 and b >= 1")
|
|
rows = tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 1)
|
|
tk.MustQuery("select * from t where a >= 4 and b >= 1")
|
|
require.Equal(t, "t:idx_b", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
}
|
|
|
|
func TestInvisibleIndex(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, unique idx_a(a), index idx_b(b) invisible)")
|
|
tk.MustGetErrMsg(
|
|
"create global binding for select * from t using select * from t use index(idx_b) ",
|
|
"[planner:1176]Key 'idx_b' doesn't exist in table 't'")
|
|
|
|
// Create bind using index
|
|
tk.MustExec("create global binding for select * from t using select * from t use index(idx_a) ")
|
|
|
|
tk.MustQuery("select * from t")
|
|
require.Equal(t, "t:idx_a", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("select * from t", "idx_a(a)"))
|
|
|
|
tk.MustExec(`prepare stmt1 from 'select * from t'`)
|
|
tk.MustExec("execute stmt1")
|
|
require.Len(t, tk.Session().GetSessionVars().StmtCtx.IndexNames, 1)
|
|
require.Equal(t, "t:idx_a", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
|
|
// And then make this index invisible
|
|
tk.MustExec("alter table t alter index idx_a invisible")
|
|
tk.MustQuery("select * from t")
|
|
require.Len(t, tk.Session().GetSessionVars().StmtCtx.IndexNames, 0)
|
|
|
|
tk.MustExec("execute stmt1")
|
|
require.Len(t, tk.Session().GetSessionVars().StmtCtx.IndexNames, 0)
|
|
|
|
tk.MustExec("drop binding for select * from t")
|
|
}
|
|
|
|
func TestSPMHitInfo(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(id int)")
|
|
tk.MustExec("create table t2(id int)")
|
|
|
|
require.True(t, tk.HasPlan("SELECT * from t1,t2 where t1.id = t2.id", "HashJoin"))
|
|
require.True(t, tk.HasPlan("SELECT /*+ TIDB_SMJ(t1, t2) */ * from t1,t2 where t1.id = t2.id", "MergeJoin"))
|
|
|
|
tk.MustExec("SELECT * from t1,t2 where t1.id = t2.id")
|
|
tk.MustQuery(`select @@last_plan_from_binding;`).Check(testkit.Rows("0"))
|
|
tk.MustExec("create global binding for SELECT * from t1,t2 where t1.id = t2.id using SELECT /*+ TIDB_SMJ(t1, t2) */ * from t1,t2 where t1.id = t2.id")
|
|
|
|
require.True(t, tk.HasPlan("SELECT * from t1,t2 where t1.id = t2.id", "MergeJoin"))
|
|
tk.MustExec("SELECT * from t1,t2 where t1.id = t2.id")
|
|
tk.MustQuery(`select @@last_plan_from_binding;`).Check(testkit.Rows("1"))
|
|
tk.MustExec("set binding disabled for SELECT * from t1,t2 where t1.id = t2.id")
|
|
tk.MustExec("SELECT * from t1,t2 where t1.id = t2.id")
|
|
tk.MustQuery(`select @@last_plan_from_binding;`).Check(testkit.Rows("0"))
|
|
|
|
tk.MustExec("drop global binding for SELECT * from t1,t2 where t1.id = t2.id")
|
|
}
|
|
|
|
func TestReCreateBind(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 idx(a))")
|
|
|
|
tk.MustQuery("select * from mysql.bind_info where source != 'builtin'").Check(testkit.Rows())
|
|
tk.MustQuery("show global bindings").Check(testkit.Rows())
|
|
|
|
tk.MustExec("create global binding for select * from t using select * from t")
|
|
tk.MustQuery("select original_sql, status from mysql.bind_info where source != 'builtin';").Check(testkit.Rows(
|
|
"select * from `test` . `t` enabled",
|
|
))
|
|
rows := tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 1)
|
|
require.Equal(t, "select * from `test` . `t`", rows[0][0])
|
|
require.Equal(t, bindinfo.Enabled, rows[0][3])
|
|
|
|
tk.MustExec("create global binding for select * from t using select * from t")
|
|
rows = tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 1)
|
|
require.Equal(t, "select * from `test` . `t`", rows[0][0])
|
|
require.Equal(t, bindinfo.Enabled, rows[0][3])
|
|
|
|
rows = tk.MustQuery("select original_sql, status from mysql.bind_info where source != 'builtin';").Rows()
|
|
require.Len(t, rows, 2)
|
|
require.Equal(t, "deleted", rows[0][1])
|
|
require.Equal(t, bindinfo.Enabled, rows[1][1])
|
|
}
|
|
|
|
func TestExplainShowBindSQL(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, key(a))")
|
|
|
|
tk.MustExec("create global binding for select * from t using select * from t use index(a)")
|
|
tk.MustQuery("select original_sql, bind_sql from mysql.bind_info where default_db != 'mysql'").Check(testkit.Rows(
|
|
"select * from `test` . `t` SELECT * FROM `test`.`t` USE INDEX (`a`)",
|
|
))
|
|
|
|
tk.MustExec("explain format = 'verbose' select * from t")
|
|
tk.MustQuery("show warnings").Check(testkit.Rows("Note 1105 Using the bindSQL: SELECT * FROM `test`.`t` USE INDEX (`a`)"))
|
|
// explain analyze do not support verbose yet.
|
|
}
|
|
|
|
func TestDMLIndexHintBind(t *testing.T) {
|
|
store := testkit.CreateMockStore(t)
|
|
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("create table t(a int, b int, c int, key idx_b(b), key idx_c(c))")
|
|
|
|
tk.MustExec("delete from t where b = 1 and c > 1")
|
|
require.Equal(t, "t:idx_b", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("delete from t where b = 1 and c > 1", "idx_b(b)"))
|
|
tk.MustExec("create global binding for delete from t where b = 1 and c > 1 using delete from t use index(idx_c) where b = 1 and c > 1")
|
|
tk.MustExec("delete from t where b = 1 and c > 1")
|
|
require.Equal(t, "t:idx_c", tk.Session().GetSessionVars().StmtCtx.IndexNames[0])
|
|
require.True(t, tk.MustUseIndex("delete from t where b = 1 and c > 1", "idx_c(c)"))
|
|
}
|
|
|
|
func TestForbidEvolvePlanBaseLinesBeforeGA(t *testing.T) {
|
|
originalVal := config.CheckTableBeforeDrop
|
|
config.CheckTableBeforeDrop = false
|
|
defer func() {
|
|
config.CheckTableBeforeDrop = originalVal
|
|
}()
|
|
|
|
store := testkit.CreateMockStore(t)
|
|
|
|
tk := testkit.NewTestKit(t, store)
|
|
err := tk.ExecToErr("set @@tidb_evolve_plan_baselines=0")
|
|
require.Equal(t, nil, err)
|
|
err = tk.ExecToErr("set @@TiDB_Evolve_pLan_baselines=1")
|
|
require.EqualError(t, err, "Cannot enable baseline evolution feature, it is not generally available now")
|
|
err = tk.ExecToErr("set @@TiDB_Evolve_pLan_baselines=oN")
|
|
require.EqualError(t, err, "Cannot enable baseline evolution feature, it is not generally available now")
|
|
err = tk.ExecToErr("admin evolve bindings")
|
|
require.EqualError(t, err, "Cannot enable baseline evolution feature, it is not generally available now")
|
|
}
|
|
|
|
func TestExplainTableStmts(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(id int, value decimal(5,2))")
|
|
tk.MustExec("table t")
|
|
tk.MustExec("explain table t")
|
|
tk.MustExec("desc table t")
|
|
}
|
|
|
|
func TestSPMWithoutUseDatabase(t *testing.T) {
|
|
store, dom := testkit.CreateMockStoreAndDomain(t)
|
|
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk1 := testkit.NewTestKit(t, store)
|
|
utilCleanBindingEnv(tk, dom)
|
|
utilCleanBindingEnv(tk1, dom)
|
|
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t(a int, b int, key(a))")
|
|
tk.MustExec("create global binding for select * from t using select * from t force index(a)")
|
|
|
|
err := tk1.ExecToErr("select * from t")
|
|
require.Error(t, err)
|
|
require.Regexp(t, "No database selected$", err)
|
|
tk1.MustQuery(`select @@last_plan_from_binding;`).Check(testkit.Rows("0"))
|
|
require.True(t, tk1.MustUseIndex("select * from test.t", "a"))
|
|
tk1.MustExec("select * from test.t")
|
|
tk1.MustQuery(`select @@last_plan_from_binding;`).Check(testkit.Rows("1"))
|
|
tk1.MustExec("set binding disabled for select * from test.t")
|
|
tk1.MustExec("select * from test.t")
|
|
tk1.MustQuery(`select @@last_plan_from_binding;`).Check(testkit.Rows("0"))
|
|
}
|
|
|
|
func TestBindingWithoutCharset(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 varchar(10) CHARACTER SET utf8)")
|
|
tk.MustExec("create global binding for select * from t where a = 'aa' using select * from t where a = 'aa'")
|
|
rows := tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 1)
|
|
require.Equal(t, "select * from `test` . `t` where `a` = ?", rows[0][0])
|
|
require.Equal(t, "SELECT * FROM `test`.`t` WHERE `a` = 'aa'", rows[0][1])
|
|
}
|
|
|
|
func TestBindingWithMultiParenthesis(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("create global binding for select * from (select * from t where a = 1) tt using select * from (select * from t where a = 1) tt")
|
|
tk.MustExec("create global binding for select * from ((select * from t where a = 1)) tt using select * from (select * from t where a = 1) tt")
|
|
rows := tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 1)
|
|
require.Equal(t, "select * from ( select * from `test` . `t` where `a` = ? ) as `tt`", rows[0][0])
|
|
require.Equal(t, "SELECT * FROM (SELECT * FROM `test`.`t` WHERE `a` = 1) AS `tt`", rows[0][1])
|
|
}
|
|
|
|
func TestGCBindRecord(t *testing.T) {
|
|
// set lease for gc tests
|
|
originLease := bindinfo.Lease
|
|
bindinfo.Lease = 0
|
|
defer func() {
|
|
bindinfo.Lease = originLease
|
|
}()
|
|
|
|
store, dom := testkit.CreateMockStoreAndDomain(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, key(a))")
|
|
|
|
tk.MustExec("create global binding for select * from t where a = 1 using select * from t use index(a) where a = 1")
|
|
rows := tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 1)
|
|
require.Equal(t, "select * from `test` . `t` where `a` = ?", rows[0][0])
|
|
require.Equal(t, bindinfo.Enabled, rows[0][3])
|
|
tk.MustQuery("select status from mysql.bind_info where original_sql = 'select * from `test` . `t` where `a` = ?'").Check(testkit.Rows(
|
|
bindinfo.Enabled,
|
|
))
|
|
|
|
h := dom.BindHandle()
|
|
// bindinfo.Lease is set to 0 for test env in SetUpSuite.
|
|
require.NoError(t, h.GCBindRecord())
|
|
rows = tk.MustQuery("show global bindings").Rows()
|
|
require.Len(t, rows, 1)
|
|
require.Equal(t, "select * from `test` . `t` where `a` = ?", rows[0][0])
|
|
require.Equal(t, bindinfo.Enabled, rows[0][3])
|
|
tk.MustQuery("select status from mysql.bind_info where original_sql = 'select * from `test` . `t` where `a` = ?'").Check(testkit.Rows(
|
|
bindinfo.Enabled,
|
|
))
|
|
|
|
tk.MustExec("drop global binding for select * from t where a = 1")
|
|
tk.MustQuery("show global bindings").Check(testkit.Rows())
|
|
tk.MustQuery("select status from mysql.bind_info where original_sql = 'select * from `test` . `t` where `a` = ?'").Check(testkit.Rows(
|
|
"deleted",
|
|
))
|
|
require.NoError(t, h.GCBindRecord())
|
|
tk.MustQuery("show global bindings").Check(testkit.Rows())
|
|
tk.MustQuery("select status from mysql.bind_info where original_sql = 'select * from `test` . `t` where `a` = ?'").Check(testkit.Rows())
|
|
}
|
|
|
|
func TestBindSQLDigest(t *testing.T) {
|
|
store, dom := testkit.CreateMockStoreAndDomain(t)
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t(pk int primary key, a int, b int, key(a), key(b))")
|
|
|
|
cases := []struct {
|
|
origin string
|
|
hint string
|
|
}{
|
|
// agg hints
|
|
{"select count(1) from t", "select /*+ hash_agg() */ count(1) from t"},
|
|
{"select count(1) from t", "select /*+ stream_agg() */ count(1) from t"},
|
|
// join hints
|
|
{"select * from t t1, t t2 where t1.a=t2.a", "select /*+ merge_join(t1, t2) */ * from t t1, t t2 where t1.a=t2.a"},
|
|
{"select * from t t1, t t2 where t1.a=t2.a", "select /*+ tidb_smj(t1, t2) */ * from t t1, t t2 where t1.a=t2.a"},
|
|
{"select * from t t1, t t2 where t1.a=t2.a", "select /*+ hash_join(t1, t2) */ * from t t1, t t2 where t1.a=t2.a"},
|
|
{"select * from t t1, t t2 where t1.a=t2.a", "select /*+ tidb_hj(t1, t2) */ * from t t1, t t2 where t1.a=t2.a"},
|
|
{"select * from t t1, t t2 where t1.a=t2.a", "select /*+ inl_join(t1, t2) */ * from t t1, t t2 where t1.a=t2.a"},
|
|
{"select * from t t1, t t2 where t1.a=t2.a", "select /*+ tidb_inlj(t1, t2) */ * from t t1, t t2 where t1.a=t2.a"},
|
|
{"select * from t t1, t t2 where t1.a=t2.a", "select /*+ inl_hash_join(t1, t2) */ * from t t1, t t2 where t1.a=t2.a"},
|
|
// index hints
|
|
{"select * from t", "select * from t use index(primary)"},
|
|
{"select * from t", "select /*+ use_index(primary) */ * from t"},
|
|
{"select * from t", "select * from t use index(a)"},
|
|
{"select * from t", "select /*+ use_index(a) */ * from t use index(a)"},
|
|
{"select * from t", "select * from t use index(b)"},
|
|
{"select * from t", "select /*+ use_index(b) */ * from t use index(b)"},
|
|
{"select a, b from t where a=1 or b=1", "select /*+ use_index_merge(t, a, b) */ a, b from t where a=1 or b=1"},
|
|
{"select * from t where a=1", "select /*+ ignore_index(t, a) */ * from t where a=1"},
|
|
// push-down hints
|
|
{"select * from t limit 10", "select /*+ limit_to_cop() */ * from t limit 10"},
|
|
{"select a, count(*) from t group by a", "select /*+ agg_to_cop() */ a, count(*) from t group by a"},
|
|
// index-merge hints
|
|
{"select a, b from t where a>1 or b>1", "select /*+ no_index_merge() */ a, b from t where a>1 or b>1"},
|
|
{"select a, b from t where a>1 or b>1", "select /*+ use_index_merge(t, a, b) */ a, b from t where a>1 or b>1"},
|
|
// runtime hints
|
|
{"select * from t", "select /*+ memory_quota(1024 MB) */ * from t"},
|
|
{"select * from t", "select /*+ max_execution_time(1000) */ * from t"},
|
|
// storage hints
|
|
{"select * from t", "select /*+ read_from_storage(tikv[t]) */ * from t"},
|
|
// others
|
|
{"select t1.a, t1.b from t t1 where t1.a in (select t2.a from t t2)", "select /*+ use_toja(true) */ t1.a, t1.b from t t1 where t1.a in (select t2.a from t t2)"},
|
|
}
|
|
for _, c := range cases {
|
|
stmtsummary.StmtSummaryByDigestMap.Clear()
|
|
utilCleanBindingEnv(tk, dom)
|
|
sql := "create global binding for " + c.origin + " using " + c.hint
|
|
tk.MustExec(sql)
|
|
res := tk.MustQuery(`show global bindings`).Rows()
|
|
require.Equal(t, len(res[0]), 11)
|
|
|
|
parser4binding := parser.New()
|
|
originNode, err := parser4binding.ParseOneStmt(c.origin, "utf8mb4", "utf8mb4_general_ci")
|
|
require.NoError(t, err)
|
|
_, sqlDigestWithDB := parser.NormalizeDigest(utilparser.RestoreWithDefaultDB(originNode, "test", c.origin))
|
|
require.Equal(t, res[0][9], sqlDigestWithDB.String())
|
|
}
|
|
}
|
|
|
|
func TestDropBindBySQLDigest(t *testing.T) {
|
|
store, dom := testkit.CreateMockStoreAndDomain(t)
|
|
tk := testkit.NewTestKit(t, store)
|
|
tk.MustExec("use test")
|
|
tk.MustExec("drop table if exists t")
|
|
tk.MustExec("create table t(pk int primary key, a int, b int, key(a), key(b))")
|
|
|
|
cases := []struct {
|
|
origin string
|
|
hint string
|
|
}{
|
|
// agg hints
|
|
{"select count(1) from t", "select /*+ hash_agg() */ count(1) from t"},
|
|
{"select count(1) from t", "select /*+ stream_agg() */ count(1) from t"},
|
|
// join hints
|
|
{"select * from t t1, t t2 where t1.a=t2.a", "select /*+ merge_join(t1, t2) */ * from t t1, t t2 where t1.a=t2.a"},
|
|
{"select * from t t1, t t2 where t1.a=t2.a", "select /*+ tidb_smj(t1, t2) */ * from t t1, t t2 where t1.a=t2.a"},
|
|
{"select * from t t1, t t2 where t1.a=t2.a", "select /*+ hash_join(t1, t2) */ * from t t1, t t2 where t1.a=t2.a"},
|
|
{"select * from t t1, t t2 where t1.a=t2.a", "select /*+ tidb_hj(t1, t2) */ * from t t1, t t2 where t1.a=t2.a"},
|
|
{"select * from t t1, t t2 where t1.a=t2.a", "select /*+ inl_join(t1, t2) */ * from t t1, t t2 where t1.a=t2.a"},
|
|
{"select * from t t1, t t2 where t1.a=t2.a", "select /*+ tidb_inlj(t1, t2) */ * from t t1, t t2 where t1.a=t2.a"},
|
|
{"select * from t t1, t t2 where t1.a=t2.a", "select /*+ inl_hash_join(t1, t2) */ * from t t1, t t2 where t1.a=t2.a"},
|
|
// index hints
|
|
{"select * from t", "select * from t use index(primary)"},
|
|
{"select * from t", "select /*+ use_index(primary) */ * from t"},
|
|
{"select * from t", "select * from t use index(a)"},
|
|
{"select * from t", "select /*+ use_index(a) */ * from t use index(a)"},
|
|
{"select * from t", "select * from t use index(b)"},
|
|
{"select * from t", "select /*+ use_index(b) */ * from t use index(b)"},
|
|
{"select a, b from t where a=1 or b=1", "select /*+ use_index_merge(t, a, b) */ a, b from t where a=1 or b=1"},
|
|
{"select * from t where a=1", "select /*+ ignore_index(t, a) */ * from t where a=1"},
|
|
// push-down hints
|
|
{"select * from t limit 10", "select /*+ limit_to_cop() */ * from t limit 10"},
|
|
{"select a, count(*) from t group by a", "select /*+ agg_to_cop() */ a, count(*) from t group by a"},
|
|
// index-merge hints
|
|
{"select a, b from t where a>1 or b>1", "select /*+ no_index_merge() */ a, b from t where a>1 or b>1"},
|
|
{"select a, b from t where a>1 or b>1", "select /*+ use_index_merge(t, a, b) */ a, b from t where a>1 or b>1"},
|
|
// runtime hints
|
|
{"select * from t", "select /*+ memory_quota(1024 MB) */ * from t"},
|
|
{"select * from t", "select /*+ max_execution_time(1000) */ * from t"},
|
|
// storage hints
|
|
{"select * from t", "select /*+ read_from_storage(tikv[t]) */ * from t"},
|
|
// others
|
|
{"select t1.a, t1.b from t t1 where t1.a in (select t2.a from t t2)", "select /*+ use_toja(true) */ t1.a, t1.b from t t1 where t1.a in (select t2.a from t t2)"},
|
|
}
|
|
|
|
h := dom.BindHandle()
|
|
// global scope
|
|
for _, c := range cases {
|
|
utilCleanBindingEnv(tk, dom)
|
|
sql := "create global binding for " + c.origin + " using " + c.hint
|
|
tk.MustExec(sql)
|
|
h.ReloadBindings()
|
|
res := tk.MustQuery(`show global bindings`).Rows()
|
|
|
|
require.Equal(t, len(res), 1)
|
|
require.Equal(t, len(res[0]), 11)
|
|
drop := fmt.Sprintf("drop global binding for sql digest '%s'", res[0][9])
|
|
tk.MustExec(drop)
|
|
require.NoError(t, h.GCBindRecord())
|
|
h.ReloadBindings()
|
|
tk.MustQuery("show global bindings").Check(testkit.Rows())
|
|
}
|
|
|
|
// session scope
|
|
for _, c := range cases {
|
|
utilCleanBindingEnv(tk, dom)
|
|
sql := "create binding for " + c.origin + " using " + c.hint
|
|
tk.MustExec(sql)
|
|
res := tk.MustQuery(`show bindings`).Rows()
|
|
|
|
require.Equal(t, len(res), 1)
|
|
require.Equal(t, len(res[0]), 11)
|
|
drop := fmt.Sprintf("drop binding for sql digest '%s'", res[0][9])
|
|
tk.MustExec(drop)
|
|
require.NoError(t, h.GCBindRecord())
|
|
tk.MustQuery("show bindings").Check(testkit.Rows())
|
|
}
|
|
|
|
// exception cases
|
|
tk.MustGetErrMsg(fmt.Sprintf("drop binding for sql digest '%s'", "1"), "can't find any binding for '1'")
|
|
tk.MustGetErrMsg(fmt.Sprintf("drop binding for sql digest '%s'", ""), "sql digest is empty")
|
|
}
|