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This is an automated cherry-pick of pingcap#50277
Signed-off-by: ti-chi-bot <[email protected]>
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load("@io_bazel_rules_go//go:def.bzl", "go_test") | ||
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go_test( | ||
name = "hint_test", | ||
timeout = "short", | ||
srcs = [ | ||
"hint_test.go", | ||
"main_test.go", | ||
], | ||
data = glob(["testdata/**"]), | ||
flaky = True, | ||
shard_count = 7, | ||
deps = [ | ||
"//pkg/config", | ||
"//pkg/domain", | ||
"//pkg/parser/model", | ||
"//pkg/planner/core/internal", | ||
"//pkg/sessionctx/variable", | ||
"//pkg/testkit", | ||
"//pkg/testkit/testdata", | ||
"//pkg/testkit/testmain", | ||
"//pkg/testkit/testsetup", | ||
"@com_github_stretchr_testify//require", | ||
"@org_uber_go_goleak//:goleak", | ||
], | ||
) |
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// Copyright 2023 PingCAP, Inc. | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
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package hint | ||
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import ( | ||
"testing" | ||
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"github.com/pingcap/tidb/pkg/domain" | ||
"github.com/pingcap/tidb/pkg/parser/model" | ||
"github.com/pingcap/tidb/pkg/planner/core/internal" | ||
"github.com/pingcap/tidb/pkg/sessionctx/variable" | ||
"github.com/pingcap/tidb/pkg/testkit" | ||
"github.com/pingcap/tidb/pkg/testkit/testdata" | ||
"github.com/stretchr/testify/require" | ||
) | ||
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func TestReadFromStorageHint(t *testing.T) { | ||
store := testkit.CreateMockStore(t) | ||
tk := testkit.NewTestKit(t, store) | ||
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tk.MustExec("use test") | ||
tk.MustExec("set tidb_cost_model_version=2") | ||
tk.MustExec("drop table if exists t, tt, ttt") | ||
tk.MustExec("set session tidb_allow_mpp=OFF") | ||
// since allow-mpp is adjusted to false, there will be no physical plan if TiFlash cop is banned. | ||
tk.MustExec("set @@session.tidb_allow_tiflash_cop=ON") | ||
tk.MustExec("create table t(a int, b int, index ia(a))") | ||
tk.MustExec("create table tt(a int, b int, primary key(a))") | ||
tk.MustExec("create table ttt(a int, primary key (a desc))") | ||
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// 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 { | ||
tblInfo.TiFlashReplica = &model.TiFlashReplicaInfo{ | ||
Count: 1, | ||
Available: true, | ||
} | ||
} | ||
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var input []string | ||
var output []struct { | ||
SQL string | ||
Plan []string | ||
Warn []string | ||
} | ||
integrationSuiteData := GetIntegrationSuiteData() | ||
integrationSuiteData.LoadTestCases(t, &input, &output) | ||
for i, tt := range input { | ||
testdata.OnRecord(func() { | ||
output[i].SQL = tt | ||
output[i].Plan = testdata.ConvertRowsToStrings(tk.MustQuery(tt).Rows()) | ||
output[i].Warn = testdata.ConvertSQLWarnToStrings(tk.Session().GetSessionVars().StmtCtx.GetWarnings()) | ||
}) | ||
res := tk.MustQuery(tt) | ||
res.Check(testkit.Rows(output[i].Plan...)) | ||
require.Equal(t, output[i].Warn, testdata.ConvertSQLWarnToStrings(tk.Session().GetSessionVars().StmtCtx.GetWarnings())) | ||
} | ||
} | ||
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func TestAllViewHintType(t *testing.T) { | ||
store := testkit.CreateMockStore(t, internal.WithMockTiFlash(2)) | ||
tk := testkit.NewTestKit(t, store) | ||
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tk.MustExec("use test") | ||
tk.MustExec("set tidb_cost_model_version=2") | ||
tk.MustExec("set @@session.tidb_allow_mpp=ON") | ||
tk.MustExec("set @@session.tidb_isolation_read_engines='tiflash, tikv'") | ||
tk.MustExec("drop view if exists v, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12") | ||
tk.MustExec("drop table if exists t, t1, t2, t4, t3, t5") | ||
tk.MustExec("create table t(a int not null, b int, index idx_a(a));") | ||
tk.MustExec("create table t1(a int not null, b int, index idx_a(a));") | ||
tk.MustExec("create table t2(a int, b int, index idx_a(a));") | ||
tk.MustExec("create table t3(a int, b int, index idx_a(a));") | ||
tk.MustExec("create table t4(a int, b int, index idx_a(a));") | ||
tk.MustExec("create table t5(a int, b int, index idx_a(a), index idx_b(b));") | ||
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// 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, | ||
} | ||
} | ||
} | ||
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tk.MustExec("create definer='root'@'localhost' view v as select t.a, t.b from t join t1 on t.a = t1.a;") | ||
tk.MustExec("create definer='root'@'localhost' view v1 as select t2.a, t2.b from t2 join t3 join v where t2.b = t3.b and t3.a = v.a;") | ||
tk.MustExec("create definer='root'@'localhost' view v2 as select t.a, t.b from t join (select count(*) as a from t1 join v1 on t1.b=v1.b group by v1.a) tt on t.a = tt.a;") | ||
tk.MustExec("create definer='root'@'localhost' view v3 as select * from t5 where a > 1 and b < 2;") | ||
tk.MustExec("create definer='root'@'localhost' view v4 as select * from t5 where a > 1 or b < 2;") | ||
tk.MustExec("create definer='root'@'localhost' view v5 as SELECT * FROM t WHERE EXISTS (SELECT 1 FROM t1 WHERE t1.b = t.b);") | ||
tk.MustExec("create definer='root'@'localhost' view v6 as select * from t1 where t1.a < (select sum(t2.a) from t2 where t2.b = t1.b);") | ||
tk.MustExec("create definer='root'@'localhost' view v7 as WITH CTE AS (SELECT * FROM t WHERE t.a < 60) SELECT * FROM CTE WHERE CTE.a <18 union select * from cte where cte.b > 1;") | ||
tk.MustExec("create definer='root'@'localhost' view v8 as WITH CTE1 AS (SELECT b FROM t1), CTE2 AS (WITH CTE3 AS (SELECT a FROM t2), CTE4 AS (SELECT a FROM t3) SELECT CTE3.a FROM CTE3, CTE4) SELECT b FROM CTE1, CTE2 union select * from CTE1;") | ||
tk.MustExec("create definer='root'@'localhost' view v9 as select sum(a) from t;") | ||
tk.MustExec("create definer='root'@'localhost' view v10 as SELECT * FROM t WHERE a > 10 ORDER BY b LIMIT 1;") | ||
tk.MustExec("create definer='root'@'localhost' view v11 as select a, sum(b) from t group by a") | ||
tk.MustExec("create definer='root'@'localhost' view v12 as select t.a, t.b from t join t t1 on t.a = t1.a;") | ||
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var input []string | ||
var output []struct { | ||
SQL string | ||
Plan []string | ||
Warn []string | ||
} | ||
integrationSuiteData := GetIntegrationSuiteData() | ||
integrationSuiteData.LoadTestCases(t, &input, &output) | ||
for i, tt := range input { | ||
testdata.OnRecord(func() { | ||
output[i].SQL = tt | ||
output[i].Plan = testdata.ConvertRowsToStrings(tk.MustQuery(tt).Rows()) | ||
output[i].Warn = testdata.ConvertSQLWarnToStrings(tk.Session().GetSessionVars().StmtCtx.GetWarnings()) | ||
}) | ||
res := tk.MustQuery(tt) | ||
res.Check(testkit.Rows(output[i].Plan...)) | ||
require.Equal(t, output[i].Warn, testdata.ConvertSQLWarnToStrings(tk.Session().GetSessionVars().StmtCtx.GetWarnings())) | ||
} | ||
} | ||
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func TestJoinHintCompatibility(t *testing.T) { | ||
store := testkit.CreateMockStore(t, internal.WithMockTiFlash(2)) | ||
tk := testkit.NewTestKit(t, store) | ||
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tk.MustExec("use test") | ||
tk.MustExec("set tidb_cost_model_version=2") | ||
tk.MustExec("set @@session.tidb_allow_mpp=ON") | ||
tk.MustExec("set @@session.tidb_isolation_read_engines='tiflash, tikv'") | ||
tk.MustExec("drop view if exists v, v1, v2") | ||
tk.MustExec("drop table if exists t, t1, t2, t3, t4, t5, t6, t7, t8, t9;") | ||
tk.MustExec("create table t(a int not null, b int, index idx_a(a), index idx_b(b));") | ||
tk.MustExec("create table t1(a int not null, b int, index idx_a(a), index idx_b(b));") | ||
tk.MustExec("create table t2(a int, b int, index idx_a(a), index idx_b(b));") | ||
tk.MustExec("create table t3(a int, b int, index idx_a(a), index idx_b(b));") | ||
tk.MustExec("create table t4(a int, b int, index idx_a(a), index idx_b(b));") | ||
tk.MustExec("create table t5(a int, b int, index idx_a(a), index idx_b(b));") | ||
tk.MustExec("create table t6(a int, b int, index idx_a(a), index idx_b(b));") | ||
tk.MustExec("create table t7(a int, b int, index idx_a(a), index idx_b(b)) partition by hash(a) partitions 4;") | ||
tk.MustExec("create table t8(a int, b int, index idx_a(a), index idx_b(b)) partition by hash(a) partitions 4;") | ||
tk.MustExec("create table t9(a int, b int, index idx_a(a), index idx_b(b)) partition by hash(a) partitions 4;") | ||
tk.MustExec("analyze table t7, t8, t9") | ||
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// 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 { | ||
name := tblInfo.Name.L | ||
if name == "t4" || name == "t5" || name == "t6" { | ||
tblInfo.TiFlashReplica = &model.TiFlashReplicaInfo{ | ||
Count: 1, | ||
Available: true, | ||
} | ||
} | ||
} | ||
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tk.MustExec("create definer='root'@'localhost' view v as select /*+ leading(t1), inl_join(t1) */ t.a from t join t1 join t2 where t.a = t1.a and t1.b = t2.b;") | ||
tk.MustExec("create definer='root'@'localhost' view v1 as select /*+ leading(t2), merge_join(t) */ t.a from t join t1 join t2 where t.a = t1.a and t1.b = t2.b;") | ||
tk.MustExec("create definer='root'@'localhost' view v2 as select t.a from t join t1 join t2 where t.a = t1.a and t1.b = t2.b;") | ||
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var input []string | ||
var output []struct { | ||
SQL string | ||
Plan []string | ||
Warn []string | ||
} | ||
integrationSuiteData := GetIntegrationSuiteData() | ||
integrationSuiteData.LoadTestCases(t, &input, &output) | ||
for i, tt := range input { | ||
testdata.OnRecord(func() { | ||
output[i].SQL = tt | ||
output[i].Plan = testdata.ConvertRowsToStrings(tk.MustQuery(tt).Rows()) | ||
output[i].Warn = testdata.ConvertSQLWarnToStrings(tk.Session().GetSessionVars().StmtCtx.GetWarnings()) | ||
}) | ||
res := tk.MustQuery(tt) | ||
res.Check(testkit.Rows(output[i].Plan...)) | ||
require.Equal(t, output[i].Warn, testdata.ConvertSQLWarnToStrings(tk.Session().GetSessionVars().StmtCtx.GetWarnings())) | ||
} | ||
} | ||
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func TestReadFromStorageHintAndIsolationRead(t *testing.T) { | ||
store := testkit.CreateMockStore(t) | ||
tk := testkit.NewTestKit(t, store) | ||
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tk.MustExec("use test") | ||
tk.MustExec("set tidb_cost_model_version=2") | ||
tk.MustExec("drop table if exists t, tt, ttt") | ||
tk.MustExec("create table t(a int, b int, index ia(a))") | ||
tk.MustExec("set @@session.tidb_isolation_read_engines=\"tikv\"") | ||
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// 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 { | ||
tblInfo.TiFlashReplica = &model.TiFlashReplicaInfo{ | ||
Count: 1, | ||
Available: true, | ||
} | ||
} | ||
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var input []string | ||
var output []struct { | ||
SQL string | ||
Plan []string | ||
Warn []string | ||
} | ||
integrationSuiteData := GetIntegrationSuiteData() | ||
integrationSuiteData.LoadTestCases(t, &input, &output) | ||
for i, tt := range input { | ||
tk.Session().GetSessionVars().StmtCtx.SetWarnings(nil) | ||
testdata.OnRecord(func() { | ||
output[i].SQL = tt | ||
output[i].Plan = testdata.ConvertRowsToStrings(tk.MustQuery(tt).Rows()) | ||
output[i].Warn = testdata.ConvertSQLWarnToStrings(tk.Session().GetSessionVars().StmtCtx.GetWarnings()) | ||
}) | ||
res := tk.MustQuery(tt) | ||
res.Check(testkit.Rows(output[i].Plan...)) | ||
require.Equal(t, output[i].Warn, testdata.ConvertSQLWarnToStrings(tk.Session().GetSessionVars().StmtCtx.GetWarnings())) | ||
} | ||
} | ||
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func TestIsolationReadTiFlashUseIndexHint(t *testing.T) { | ||
store := testkit.CreateMockStore(t) | ||
tk := testkit.NewTestKit(t, store) | ||
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tk.MustExec("use test") | ||
tk.MustExec("drop table if exists t") | ||
tk.MustExec("create table t(a int, index idx(a));") | ||
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// 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 { | ||
tblInfo.TiFlashReplica = &model.TiFlashReplicaInfo{ | ||
Count: 1, | ||
Available: true, | ||
} | ||
} | ||
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tk.MustExec("set @@session.tidb_isolation_read_engines=\"tiflash\"") | ||
var input []string | ||
var output []struct { | ||
SQL string | ||
Plan []string | ||
Warn []string | ||
} | ||
integrationSuiteData := GetIntegrationSuiteData() | ||
integrationSuiteData.LoadTestCases(t, &input, &output) | ||
for i, tt := range input { | ||
testdata.OnRecord(func() { | ||
output[i].SQL = tt | ||
output[i].Plan = testdata.ConvertRowsToStrings(tk.MustQuery(tt).Rows()) | ||
output[i].Warn = testdata.ConvertSQLWarnToStrings(tk.Session().GetSessionVars().StmtCtx.GetWarnings()) | ||
}) | ||
res := tk.MustQuery(tt) | ||
res.Check(testkit.Rows(output[i].Plan...)) | ||
require.Equal(t, output[i].Warn, testdata.ConvertSQLWarnToStrings(tk.Session().GetSessionVars().StmtCtx.GetWarnings())) | ||
} | ||
} | ||
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func TestOptimizeHintOnPartitionTable(t *testing.T) { | ||
store := testkit.CreateMockStore(t) | ||
tk := testkit.NewTestKit(t, store) | ||
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tk.MustExec("use test") | ||
tk.MustExec("drop table if exists t") | ||
tk.MustExec(`create table t ( | ||
a int, b int, c varchar(20), | ||
primary key(a), key(b), key(c) | ||
) partition by range columns(a) ( | ||
partition p0 values less than(6), | ||
partition p1 values less than(11), | ||
partition p2 values less than(16));`) | ||
tk.MustExec(`insert into t values (1,1,"1"), (2,2,"2"), (8,8,"8"), (11,11,"11"), (15,15,"15")`) | ||
tk.MustExec("set @@tidb_enable_index_merge = off") | ||
defer func() { | ||
tk.MustExec("set @@tidb_enable_index_merge = on") | ||
}() | ||
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// 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, | ||
} | ||
} | ||
} | ||
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tk.MustExec(`set @@tidb_partition_prune_mode='` + string(variable.Static) + `'`) | ||
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var input []string | ||
var output []struct { | ||
SQL string | ||
Plan []string | ||
Warn []string | ||
} | ||
integrationSuiteData := GetIntegrationSuiteData() | ||
integrationSuiteData.LoadTestCases(t, &input, &output) | ||
for i, tt := range input { | ||
testdata.OnRecord(func() { | ||
output[i].SQL = tt | ||
output[i].Plan = testdata.ConvertRowsToStrings(tk.MustQuery("explain format = 'brief' " + tt).Rows()) | ||
output[i].Warn = testdata.ConvertRowsToStrings(tk.MustQuery("show warnings").Rows()) | ||
}) | ||
tk.MustQuery("explain format = 'brief' " + tt).Check(testkit.Rows(output[i].Plan...)) | ||
tk.MustQuery("show warnings").Check(testkit.Rows(output[i].Warn...)) | ||
} | ||
tk.MustQuery("SELECT /*+ MAX_EXECUTION_TIME(10) */ SLEEP(5)").Check(testkit.Rows("0")) | ||
tk.MustQuery("SELECT /*+ MAX_EXECUTION_TIME(10), dtc(name=tt) */ SLEEP(5)").Check(testkit.Rows("0")) | ||
require.Len(t, tk.Session().GetSessionVars().StmtCtx.GetWarnings(), 1) | ||
tk.MustQuery("SELECT /*+ MAX_EXECUTION_TIME(10), dtc(name=tt) unknow(t1,t2) */ SLEEP(5)").Check(testkit.Rows("0")) | ||
require.Len(t, tk.Session().GetSessionVars().StmtCtx.GetWarnings(), 2) | ||
} | ||
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func TestHints(t *testing.T) { | ||
store := testkit.CreateMockStore(t) | ||
tk := testkit.NewTestKit(t, store) | ||
tk.MustExec("use test") | ||
tk.MustExec("create table t1 (a int);") | ||
tk.MustExec("create table t2 (a int);") | ||
tk.MustExec("create table t3 (a int);") | ||
var input []string | ||
var output []struct { | ||
SQL string | ||
Plan []string | ||
Warn []string | ||
} | ||
integrationSuiteData := GetIntegrationSuiteData() | ||
integrationSuiteData.LoadTestCases(t, &input, &output) | ||
for i, tt := range input { | ||
testdata.OnRecord(func() { | ||
output[i].SQL = tt | ||
output[i].Plan = testdata.ConvertRowsToStrings(tk.MustQuery("explain format = 'brief' " + tt).Rows()) | ||
output[i].Warn = testdata.ConvertRowsToStrings(tk.MustQuery("show warnings").Rows()) | ||
}) | ||
tk.MustQuery("explain format = 'brief' " + tt).Check(testkit.Rows(output[i].Plan...)) | ||
tk.MustQuery("show warnings").Check(testkit.Rows(output[i].Warn...)) | ||
} | ||
} |
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