sessionctx: enable list partition by default

executor/partition_table_test.go

@@ -899,12 +899,12 @@ func TestGlobalStatsAndSQLBinding(t *testing.T) {
 		partition p2 values less than (600),
 		partition p3 values less than (800),
 		partition p4 values less than (1001))`)
-	tk.MustExec(`create table tlist(a int, b int, key(a)) partition by list (a) (
+	tk.MustExec(`create table tlist (a int, b int, key(a)) partition by list (a) (
 		partition p0 values in (0, 1, 2, 3, 4, 5, 6, 7, 8, 9),
-		partition p0 values in (10, 11, 12, 13, 14, 15, 16, 17, 18, 19),
-		partition p0 values in (20, 21, 22, 23, 24, 25, 26, 27, 28, 29),
-		partition p0 values in (30, 31, 32, 33, 34, 35, 36, 37, 38, 39),
-		partition p0 values in (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50))`)
+		partition p1 values in (10, 11, 12, 13, 14, 15, 16, 17, 18, 19),
+		partition p2 values in (20, 21, 22, 23, 24, 25, 26, 27, 28, 29),
+		partition p3 values in (30, 31, 32, 33, 34, 35, 36, 37, 38, 39),
+		partition p4 values in (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50))`)
 
 	// construct some special data distribution
 	vals := make([]string, 0, 1000)
@@ -3019,6 +3019,8 @@ func TestIssue21731(t *testing.T) {
 	tk := testkit.NewTestKit(t, store)
 	tk.MustExec("use test")
 	tk.MustExec("drop table if exists p, t")
+	tk.MustExec("set @@tidb_enable_list_partition = OFF")
+	// Notice that this does not really test the issue #21731
 	tk.MustExec("create table t (a int, b int, unique index idx(a)) partition by list columns(b) (partition p0 values in (1), partition p1 values in (2));")
 }
 

planner/core/integration_partition_test.go

@@ -1068,6 +1068,7 @@ func TestIssue27070(t *testing.T) {
 	tk := testkit.NewTestKit(t, store)
 	tk.MustExec("create database issue_27070")
 	tk.MustExec("use issue_27070")
+	tk.MustExec("set @@tidb_enable_list_partition = OFF")
 	tk.MustExec(`create table if not exists t (id int,   create_date date NOT NULL DEFAULT '2000-01-01',   PRIMARY KEY (id,create_date)  ) PARTITION BY list COLUMNS(create_date) (   PARTITION p20210506 VALUES IN ("20210507"),   PARTITION p20210507 VALUES IN ("20210508") )`)
 	tk.MustQuery("show warnings").Check(testkit.Rows("Warning 8200 Unsupported partition type LIST, treat as normal table"))
 }

planner/core/integration_test.go

@@ -1097,7 +1097,7 @@ func TestPartitionTableDynamicModeUnderNewCollation(t *testing.T) {
 	tk.MustQuery("select * from strrange where a in ('a', 'y')").Sort().Check(testkit.Rows("A 1", "Y 1", "a 1", "y 1"))
 
 	// list partition and partitioned by utf8mb4_general_ci
-	tk.MustExec(`create table strlist(a varchar(10) charset utf8mb4 collate utf8mb4_general_ci, b int) partition by list(a) (
+	tk.MustExec(`create table strlist(a varchar(10) charset utf8mb4 collate utf8mb4_general_ci, b int) partition by list columns (a) (
 						partition p0 values in ('a', 'b'),
 						partition p1 values in ('c', 'd'),
 						partition p2 values in ('e', 'f'))`)

sessionctx/variable/sysvar.go

@@ -1160,7 +1160,7 @@ var defaultSysVars = []*SysVar{
 		s.EnableTablePartition = val
 		return nil
 	}},
-	{Scope: ScopeGlobal | ScopeSession, Name: TiDBEnableListTablePartition, Value: Off, Type: TypeBool, SetSession: func(s *SessionVars, val string) error {
+	{Scope: ScopeGlobal | ScopeSession, Name: TiDBEnableListTablePartition, Value: On, Type: TypeBool, SetSession: func(s *SessionVars, val string) error {
 		s.EnableListTablePartition = TiDBOptOn(val)
 		return nil
 	}},