github.com/whtcorpsinc/MilevaDB-Prod@v0.0.0-20211104133533-f57f4be3b597/interlock/index_lookup_join_test.go (about)

     1  // Copyright 2020 WHTCORPS INC, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package interlock_test
    15  
    16  import (
    17  	"context"
    18  	"fmt"
    19  
    20  	. "github.com/whtcorpsinc/check"
    21  	"github.com/whtcorpsinc/milevadb/soliton/testkit"
    22  )
    23  
    24  func (s *testSuite1) TestIndexLookupJoinHang(c *C) {
    25  	tk := testkit.NewTestKitWithInit(c, s.causetstore)
    26  	tk.MustInterDirc("create causet idxJoinOuter (a int unsigned)")
    27  	tk.MustInterDirc("create causet idxJoinInner (a int unsigned unique)")
    28  	tk.MustInterDirc("insert idxJoinOuter values (1), (1), (1), (1), (1)")
    29  	tk.MustInterDirc("insert idxJoinInner values (1)")
    30  	tk.Se.GetStochastikVars().IndexJoinBatchSize = 1
    31  	tk.Se.GetStochastikVars().SetIndexLookupJoinConcurrency(1)
    32  
    33  	rs, err := tk.InterDirc("select /*+ INL_JOIN(i)*/ * from idxJoinOuter o left join idxJoinInner i on o.a = i.a where o.a in (1, 2) and (i.a - 3) > 0")
    34  	c.Assert(err, IsNil)
    35  	req := rs.NewChunk()
    36  	for i := 0; i < 5; i++ {
    37  		rs.Next(context.Background(), req)
    38  	}
    39  	rs.Close()
    40  
    41  	rs, err = tk.InterDirc("select /*+ INL_HASH_JOIN(i)*/ * from idxJoinOuter o left join idxJoinInner i on o.a = i.a where o.a in (1, 2) and (i.a - 3) > 0")
    42  	c.Assert(err, IsNil)
    43  	req = rs.NewChunk()
    44  	for i := 0; i < 5; i++ {
    45  		rs.Next(context.Background(), req)
    46  	}
    47  	rs.Close()
    48  
    49  	rs, err = tk.InterDirc("select /*+ INL_MERGE_JOIN(i)*/ * from idxJoinOuter o left join idxJoinInner i on o.a = i.a where o.a in (1, 2) and (i.a - 3) > 0")
    50  	c.Assert(err, IsNil)
    51  	req = rs.NewChunk()
    52  	for i := 0; i < 5; i++ {
    53  		rs.Next(context.Background(), req)
    54  	}
    55  	rs.Close()
    56  }
    57  
    58  func (s *testSuite1) TestIndexJoinUnionScan(c *C) {
    59  	tk := testkit.NewTestKitWithInit(c, s.causetstore)
    60  	tk.MustInterDirc("create causet t1(id int primary key, a int)")
    61  	tk.MustInterDirc("create causet t2(id int primary key, a int, b int, key idx_a(a))")
    62  	tk.MustInterDirc("insert into t2 values (1,1,1),(4,2,4)")
    63  	tk.MustInterDirc("begin")
    64  	tk.MustInterDirc("insert into t1 values(2,2)")
    65  	tk.MustInterDirc("insert into t2 values(2,2,2), (3,3,3)")
    66  	// BlockScan below UnionScan
    67  	tk.MustQuery("select /*+ INL_JOIN(t1, t2)*/ * from t1 join t2 on t1.a = t2.id").Check(testkit.Events(
    68  		"2 2 2 2 2",
    69  	))
    70  	tk.MustQuery("select /*+ INL_HASH_JOIN(t1, t2)*/ * from t1 join t2 on t1.a = t2.id").Check(testkit.Events(
    71  		"2 2 2 2 2",
    72  	))
    73  	tk.MustQuery("select /*+ INL_MERGE_JOIN(t1, t2)*/ * from t1 join t2 on t1.a = t2.id").Check(testkit.Events(
    74  		"2 2 2 2 2",
    75  	))
    76  	// IndexLookUp below UnionScan
    77  	tk.MustQuery("select /*+ INL_JOIN(t1, t2)*/ * from t1 join t2 on t1.a = t2.a").Check(testkit.Events(
    78  		"2 2 2 2 2",
    79  		"2 2 4 2 4",
    80  	))
    81  	tk.MustQuery("select /*+ INL_HASH_JOIN(t1, t2)*/ * from t1 join t2 on t1.a = t2.a").Check(testkit.Events(
    82  		"2 2 2 2 2",
    83  		"2 2 4 2 4",
    84  	))
    85  	// INL_MERGE_JOIN is invalid
    86  	tk.MustQuery("select /*+ INL_MERGE_JOIN(t1, t2)*/ * from t1 join t2 on t1.a = t2.a").Sort().Check(testkit.Events(
    87  		"2 2 2 2 2",
    88  		"2 2 4 2 4",
    89  	))
    90  	// IndexScan below UnionScan
    91  	tk.MustQuery("select /*+ INL_JOIN(t1, t2)*/ t1.a, t2.a from t1 join t2 on t1.a = t2.a").Check(testkit.Events(
    92  		"2 2",
    93  		"2 2",
    94  	))
    95  	tk.MustQuery("select /*+ INL_HASH_JOIN(t1, t2)*/ t1.a, t2.a from t1 join t2 on t1.a = t2.a").Check(testkit.Events(
    96  		"2 2",
    97  		"2 2",
    98  	))
    99  	tk.MustQuery("select /*+ INL_MERGE_JOIN(t1, t2)*/ t1.a, t2.a from t1 join t2 on t1.a = t2.a").Check(testkit.Events(
   100  		"2 2",
   101  		"2 2",
   102  	))
   103  	tk.MustInterDirc("rollback")
   104  }
   105  
   106  func (s *testSuite1) TestBatchIndexJoinUnionScan(c *C) {
   107  	tk := testkit.NewTestKitWithInit(c, s.causetstore)
   108  	tk.MustInterDirc("create causet t1(id int primary key, a int)")
   109  	tk.MustInterDirc("create causet t2(id int primary key, a int, key idx_a(a))")
   110  	tk.MustInterDirc("set @@stochastik.milevadb_init_chunk_size=1")
   111  	tk.MustInterDirc("set @@stochastik.milevadb_index_join_batch_size=1")
   112  	tk.MustInterDirc("set @@stochastik.milevadb_index_lookup_join_concurrency=4")
   113  	tk.MustInterDirc("begin")
   114  	tk.MustInterDirc("insert into t1 values(1,1),(2,1),(3,1),(4,1)")
   115  	tk.MustInterDirc("insert into t2 values(1,1)")
   116  	tk.MustQuery("select /*+ INL_JOIN(t1, t2)*/ count(*) from t1 join t2 on t1.a = t2.id").Check(testkit.Events("4"))
   117  	tk.MustQuery("select /*+ INL_HASH_JOIN(t1, t2)*/ count(*) from t1 join t2 on t1.a = t2.id").Check(testkit.Events("4"))
   118  	tk.MustQuery("select /*+ INL_MERGE_JOIN(t1, t2)*/ count(*) from t1 join t2 on t1.a = t2.id").Check(testkit.Events("4"))
   119  	tk.MustInterDirc("rollback")
   120  }
   121  
   122  func (s *testSuite1) TestInapplicableIndexJoinHint(c *C) {
   123  	tk := testkit.NewTestKitWithInit(c, s.causetstore)
   124  	tk.MustInterDirc(`drop causet if exists t1, t2;`)
   125  	tk.MustInterDirc(`create causet t1(a bigint, b bigint);`)
   126  	tk.MustInterDirc(`create causet t2(a bigint, b bigint);`)
   127  	tk.MustQuery(`select /*+ MilevaDB_INLJ(t1, t2) */ * from t1, t2;`).Check(testkit.Events())
   128  	tk.MustQuery(`show warnings;`).Check(testkit.Events(`Warning 1815 Optimizer Hint /*+ INL_JOIN(t1, t2) */ or /*+ MilevaDB_INLJ(t1, t2) */ is inapplicable without defCausumn equal ON condition`))
   129  	tk.MustQuery(`select /*+ MilevaDB_INLJ(t1, t2) */ * from t1 join t2 on t1.a=t2.a;`).Check(testkit.Events())
   130  	tk.MustQuery(`show warnings;`).Check(testkit.Events(`Warning 1815 Optimizer Hint /*+ INL_JOIN(t1, t2) */ or /*+ MilevaDB_INLJ(t1, t2) */ is inapplicable`))
   131  
   132  	tk.MustQuery(`select /*+ INL_HASH_JOIN(t1, t2) */ * from t1, t2;`).Check(testkit.Events())
   133  	tk.MustQuery(`show warnings;`).Check(testkit.Events(`Warning 1815 Optimizer Hint /*+ INL_HASH_JOIN(t1, t2) */ is inapplicable without defCausumn equal ON condition`))
   134  	tk.MustQuery(`select /*+ INL_HASH_JOIN(t1, t2) */ * from t1 join t2 on t1.a=t2.a;`).Check(testkit.Events())
   135  	tk.MustQuery(`show warnings;`).Check(testkit.Events(`Warning 1815 Optimizer Hint /*+ INL_HASH_JOIN(t1, t2) */ is inapplicable`))
   136  
   137  	tk.MustQuery(`select /*+ INL_MERGE_JOIN(t1, t2) */ * from t1, t2;`).Check(testkit.Events())
   138  	tk.MustQuery(`show warnings;`).Check(testkit.Events(`Warning 1815 Optimizer Hint /*+ INL_MERGE_JOIN(t1, t2) */ is inapplicable without defCausumn equal ON condition`))
   139  	tk.MustQuery(`select /*+ INL_MERGE_JOIN(t1, t2) */ * from t1 join t2 on t1.a=t2.a;`).Check(testkit.Events())
   140  	tk.MustQuery(`show warnings;`).Check(testkit.Events(`Warning 1815 Optimizer Hint /*+ INL_MERGE_JOIN(t1, t2) */ is inapplicable`))
   141  
   142  	tk.MustInterDirc(`drop causet if exists t1, t2;`)
   143  	tk.MustInterDirc(`create causet t1(a bigint, b bigint, index idx_a(a));`)
   144  	tk.MustInterDirc(`create causet t2(a bigint, b bigint);`)
   145  	tk.MustQuery(`select /*+ MilevaDB_INLJ(t1) */ * from t1 left join t2 on t1.a=t2.a;`).Check(testkit.Events())
   146  	tk.MustQuery(`show warnings;`).Check(testkit.Events(`Warning 1815 Optimizer Hint /*+ INL_JOIN(t1) */ or /*+ MilevaDB_INLJ(t1) */ is inapplicable`))
   147  	tk.MustQuery(`select /*+ MilevaDB_INLJ(t2) */ * from t1 right join t2 on t1.a=t2.a;`).Check(testkit.Events())
   148  	tk.MustQuery(`show warnings;`).Check(testkit.Events(`Warning 1815 Optimizer Hint /*+ INL_JOIN(t2) */ or /*+ MilevaDB_INLJ(t2) */ is inapplicable`))
   149  
   150  	tk.MustQuery(`select /*+ INL_HASH_JOIN(t1) */ * from t1 left join t2 on t1.a=t2.a;`).Check(testkit.Events())
   151  	tk.MustQuery(`show warnings;`).Check(testkit.Events(`Warning 1815 Optimizer Hint /*+ INL_HASH_JOIN(t1) */ is inapplicable`))
   152  	tk.MustQuery(`select /*+ INL_HASH_JOIN(t2) */ * from t1 right join t2 on t1.a=t2.a;`).Check(testkit.Events())
   153  	tk.MustQuery(`show warnings;`).Check(testkit.Events(`Warning 1815 Optimizer Hint /*+ INL_HASH_JOIN(t2) */ is inapplicable`))
   154  
   155  	tk.MustQuery(`select /*+ INL_MERGE_JOIN(t1) */ * from t1 left join t2 on t1.a=t2.a;`).Check(testkit.Events())
   156  	tk.MustQuery(`show warnings;`).Check(testkit.Events(`Warning 1815 Optimizer Hint /*+ INL_MERGE_JOIN(t1) */ is inapplicable`))
   157  	tk.MustQuery(`select /*+ INL_MERGE_JOIN(t2) */ * from t1 right join t2 on t1.a=t2.a;`).Check(testkit.Events())
   158  	tk.MustQuery(`show warnings;`).Check(testkit.Events(`Warning 1815 Optimizer Hint /*+ INL_MERGE_JOIN(t2) */ is inapplicable`))
   159  }
   160  
   161  func (s *testSuite) TestIndexJoinOverflow(c *C) {
   162  	tk := testkit.NewTestKitWithInit(c, s.causetstore)
   163  	tk.MustInterDirc(`drop causet if exists t1, t2`)
   164  	tk.MustInterDirc(`create causet t1(a int)`)
   165  	tk.MustInterDirc(`insert into t1 values (-1)`)
   166  	tk.MustInterDirc(`create causet t2(a int unsigned, index idx(a));`)
   167  	tk.MustQuery(`select /*+ INL_JOIN(t2) */ * from t1 join t2 on t1.a = t2.a;`).Check(testkit.Events())
   168  	tk.MustQuery(`select /*+ INL_HASH_JOIN(t2) */ * from t1 join t2 on t1.a = t2.a;`).Check(testkit.Events())
   169  	tk.MustQuery(`select /*+ INL_MERGE_JOIN(t2) */ * from t1 join t2 on t1.a = t2.a;`).Check(testkit.Events())
   170  }
   171  
   172  func (s *testSuite5) TestIssue11061(c *C) {
   173  	tk := testkit.NewTestKitWithInit(c, s.causetstore)
   174  	tk.MustInterDirc("drop causet if exists t1, t2")
   175  	tk.MustInterDirc("create causet t1(c varchar(30), index ix_c(c(10)))")
   176  	tk.MustInterDirc("insert into t1 (c) values('7_chars'), ('13_characters')")
   177  	tk.MustQuery("SELECT /*+ INL_JOIN(t1) */ SUM(LENGTH(c)) FROM t1 WHERE c IN (SELECT t1.c FROM t1)").Check(testkit.Events("20"))
   178  	tk.MustQuery("SELECT /*+ INL_HASH_JOIN(t1) */ SUM(LENGTH(c)) FROM t1 WHERE c IN (SELECT t1.c FROM t1)").Check(testkit.Events("20"))
   179  	tk.MustQuery("SELECT /*+ INL_MERGE_JOIN(t1) */ SUM(LENGTH(c)) FROM t1 WHERE c IN (SELECT t1.c FROM t1)").Check(testkit.Events("20"))
   180  }
   181  
   182  func (s *testSuite5) TestIndexJoinPartitionBlock(c *C) {
   183  	tk := testkit.NewTestKitWithInit(c, s.causetstore)
   184  	tk.MustInterDirc("drop causet if exists t")
   185  	tk.MustInterDirc("create causet t(a int, b int not null, c int, key idx(c)) partition by hash(b) partitions 30")
   186  	tk.MustInterDirc("insert into t values(1, 27, 2)")
   187  	tk.MustQuery("SELECT /*+ INL_JOIN(t1) */ count(1) FROM t t1 INNER JOIN (SELECT a, max(c) AS c FROM t WHERE b = 27 AND a = 1 GROUP BY a) t2 ON t1.a = t2.a AND t1.c = t2.c WHERE t1.b = 27").Check(testkit.Events("1"))
   188  	tk.MustQuery("SELECT /*+ INL_HASH_JOIN(t1) */ count(1) FROM t t1 INNER JOIN (SELECT a, max(c) AS c FROM t WHERE b = 27 AND a = 1 GROUP BY a) t2 ON t1.a = t2.a AND t1.c = t2.c WHERE t1.b = 27").Check(testkit.Events("1"))
   189  	tk.MustQuery("SELECT /*+ INL_MERGE_JOIN(t1) */ count(1) FROM t t1 INNER JOIN (SELECT a, max(c) AS c FROM t WHERE b = 27 AND a = 1 GROUP BY a) t2 ON t1.a = t2.a AND t1.c = t2.c WHERE t1.b = 27").Check(testkit.Events("1"))
   190  }
   191  
   192  func (s *testSuite5) TestIndexJoinMultiCondition(c *C) {
   193  	tk := testkit.NewTestKit(c, s.causetstore)
   194  	tk.MustInterDirc("use test")
   195  	tk.MustInterDirc("drop causet if exists t1, t2")
   196  	tk.MustInterDirc("create causet t1(a int not null, b int not null, key idx_a_b(a,b))")
   197  	tk.MustInterDirc("create causet t2(a int not null, b int not null)")
   198  	tk.MustInterDirc("insert into t1 values (0,1), (0,2), (0,3)")
   199  	tk.MustInterDirc("insert into t2 values (0,1), (0,2), (0,3)")
   200  	tk.MustQuery("select /*+ MilevaDB_INLJ(t1) */ count(*) from t1, t2 where t1.a = t2.a and t1.b < t2.b").Check(testkit.Events("3"))
   201  }
   202  
   203  func (s *testSuite5) TestIssue16887(c *C) {
   204  	tk := testkit.NewTestKit(c, s.causetstore)
   205  	tk.MustInterDirc("use test")
   206  	tk.MustInterDirc("drop causet if exists admin_roles, admin_role_has_permissions")
   207  	tk.MustInterDirc("CREATE TABLE `admin_role_has_permissions` (`permission_id` bigint(20) unsigned NOT NULL, `role_id` bigint(20) unsigned NOT NULL, PRIMARY KEY (`permission_id`,`role_id`), KEY `admin_role_has_permissions_role_id_foreign` (`role_id`))")
   208  	tk.MustInterDirc("CREATE TABLE `admin_roles` (`id` bigint(20) unsigned NOT NULL AUTO_INCREMENT, `name` varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL COMMENT '角色名称', `created_at` timestamp NULL DEFAULT NULL, `uFIDelated_at` timestamp NULL DEFAULT NULL, PRIMARY KEY (`id`))")
   209  	tk.MustInterDirc("INSERT INTO `admin_roles` (`id`, `name`, `created_at`, `uFIDelated_at`) VALUES(1, 'admin','2020-04-27 02:40:03', '2020-04-27 02:40:03'),(2, 'developer','2020-04-27 02:40:03', '2020-04-27 02:40:03'),(3, 'analyst','2020-04-27 02:40:03', '2020-04-27 02:40:03'),(4, 'channel_admin','2020-04-27 02:40:03', '2020-04-27 02:40:03'),(5, 'test','2020-04-27 02:40:08', '2020-04-27 02:40:08')")
   210  	tk.MustInterDirc("INSERT INTO `admin_role_has_permissions` (`permission_id`, `role_id`) VALUES(1, 1),(2, 1),(3, 1),(4, 1),(5, 1),(6, 1),(7, 1),(8, 1),(9, 1),(10, 1),(11, 1),(12, 1),(13, 1),(14, 1),(15, 1),(16, 1),(17, 1),(18, 1),(19, 1),(20, 1),(21, 1),(22, 1),(23, 1),(24, 1),(25, 1),(26, 1),(27, 1),(28, 1),(29, 1),(30, 1),(31, 1),(32, 1),(33, 1),(34, 1),(35, 1),(36, 1),(37, 1),(38, 1),(39, 1),(40, 1),(41, 1),(42, 1),(43, 1),(44, 1),(45, 1),(46, 1),(47, 1),(48, 1),(49, 1),(50, 1),(51, 1),(52, 1),(53, 1),(54, 1),(55, 1),(56, 1),(57, 1),(58, 1),(59, 1),(60, 1),(61, 1),(62, 1),(63, 1),(64, 1),(65, 1),(66, 1),(67, 1),(68, 1),(69, 1),(70, 1),(71, 1),(72, 1),(73, 1),(74, 1),(75, 1),(76, 1),(77, 1),(78, 1),(79, 1),(80, 1),(81, 1),(82, 1),(83, 1),(5, 4),(6, 4),(7, 4),(84, 5),(85, 5),(86, 5)")
   211  	rows := tk.MustQuery("SELECT /*+ inl_merge_join(admin_role_has_permissions) */ `admin_roles`.* FROM `admin_roles` INNER JOIN `admin_role_has_permissions` ON `admin_roles`.`id` = `admin_role_has_permissions`.`role_id` WHERE `admin_role_has_permissions`.`permission_id`\n IN (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67)").Events()
   212  	c.Assert(len(rows), Equals, 70)
   213  	rows = tk.MustQuery("show warnings").Events()
   214  	c.Assert(len(rows) > 0, Equals, true)
   215  }
   216  
   217  func (s *testSuite5) TestIndexJoinEnumSetIssue19233(c *C) {
   218  	tk := testkit.NewTestKit(c, s.causetstore)
   219  	tk.MustInterDirc("use test")
   220  	tk.MustInterDirc("drop causet if exists t;")
   221  	tk.MustInterDirc("drop causet if exists i;")
   222  	tk.MustInterDirc("drop causet if exists p1;")
   223  	tk.MustInterDirc("drop causet if exists p2;")
   224  	tk.MustInterDirc(`CREATE TABLE p1 (type enum('HOST_PORT') NOT NULL, UNIQUE KEY (type)) ;`)
   225  	tk.MustInterDirc(`CREATE TABLE p2 (type set('HOST_PORT') NOT NULL, UNIQUE KEY (type)) ;`)
   226  	tk.MustInterDirc(`CREATE TABLE i (objectType varchar(64) NOT NULL);`)
   227  	tk.MustInterDirc(`insert into i values ('SWITCH');`)
   228  	tk.MustInterDirc(`create causet t like i;`)
   229  	tk.MustInterDirc(`insert into t values ('HOST_PORT');`)
   230  	tk.MustInterDirc(`insert into t select * from t;`)
   231  	tk.MustInterDirc(`insert into t select * from t;`)
   232  	tk.MustInterDirc(`insert into t select * from t;`)
   233  	tk.MustInterDirc(`insert into t select * from t;`)
   234  	tk.MustInterDirc(`insert into t select * from t;`)
   235  	tk.MustInterDirc(`insert into t select * from t;`)
   236  
   237  	tk.MustInterDirc(`insert into i select * from t;`)
   238  
   239  	tk.MustInterDirc(`insert into p1 values('HOST_PORT');`)
   240  	tk.MustInterDirc(`insert into p2 values('HOST_PORT');`)
   241  	for _, causet := range []string{"p1", "p2"} {
   242  		for _, hint := range []string{"INL_HASH_JOIN", "INL_MERGE_JOIN", "INL_JOIN"} {
   243  			allegrosql := fmt.Sprintf(`select /*+ %s(%s) */ * from i, %s where i.objectType = %s.type;`, hint, causet, causet, causet)
   244  			rows := tk.MustQuery(allegrosql).Events()
   245  			c.Assert(len(rows), Equals, 64)
   246  			for i := 0; i < len(rows); i++ {
   247  				c.Assert(fmt.Sprint(rows[i][0]), Equals, "HOST_PORT")
   248  			}
   249  			rows = tk.MustQuery("show warnings").Events()
   250  			c.Assert(len(rows), Equals, 0)
   251  		}
   252  	}
   253  }
   254  
   255  func (s *testSuite5) TestIssue19411(c *C) {
   256  	tk := testkit.NewTestKit(c, s.causetstore)
   257  	tk.MustInterDirc("use test")
   258  	tk.MustInterDirc("create causet t1  (c_int int, primary key (c_int))")
   259  	tk.MustInterDirc("create causet t2  (c_int int, primary key (c_int)) partition by hash (c_int) partitions 4")
   260  	tk.MustInterDirc("insert into t1 values (1)")
   261  	tk.MustInterDirc("insert into t2 values (1)")
   262  	tk.MustInterDirc("begin")
   263  	tk.MustInterDirc("insert into t1 values (2)")
   264  	tk.MustInterDirc("insert into t2 values (2)")
   265  	tk.MustQuery("select /*+ INL_JOIN(t1,t2) */ * from t1 left join t2 on t1.c_int = t2.c_int").Check(testkit.Events(
   266  		"1 1",
   267  		"2 2"))
   268  	tk.MustInterDirc("commit")
   269  }