util, schematracker: mock sctx turn on EnableListTablePartition (#54761…

…) (#56908)

close #54760

ddl/schematracker/BUILD.bazel

@@ -44,7 +44,7 @@ go_test(
     ],
     embed = [":schematracker"],
     flaky = True,
-    shard_count = 14,
+    shard_count = 15,
     deps = [
         "//executor",
         "//infoschema",

ddl/schematracker/dm_tracker_test.go

@@ -506,3 +506,25 @@ func TestModifyFromNullToNotNull(t *testing.T) {
 	tblInfo := mustTableByName(t, tracker, "test", "t")
 	require.Len(t, tblInfo.Columns, 2)
 }
+
+func TestDropListPartition(t *testing.T) {
+	sql := `
+CREATE TABLE test.employees11 (
+id INT NOT NULL,
+hired DATE NOT NULL DEFAULT '1970-01-01',
+store_id INT,
+PRIMARY KEY (id,store_id)
+)
+PARTITION BY LIST (store_id) (
+PARTITION pNorth VALUES IN (1, 2, 3, 4, 5),
+PARTITION pEast VALUES IN (6, 7, 8, 9, 10),
+PARTITION pWest VALUES IN (11, 12, 13, 14, 15),
+PARTITION pCentral VALUES IN (16, 17, 18, 19, 20)
+);`
+	tracker := schematracker.NewSchemaTracker(2)
+	tracker.CreateTestDB()
+	execCreate(t, tracker, sql)
+
+	sql = "ALTER TABLE test.employees11 DROP PARTITION pEast;"
+	execAlter(t, tracker, sql)
+}

util/mock/context.go

@@ -484,6 +484,7 @@ func NewContext() *Context {
 	vars.MinPagingSize = variable.DefMinPagingSize
 	vars.CostModelVersion = variable.DefTiDBCostModelVer
 	vars.EnableChunkRPC = true
+	vars.EnableListTablePartition = true
 	if err := sctx.GetSessionVars().SetSystemVar(variable.MaxAllowedPacket, "67108864"); err != nil {
 		panic(err)
 	}