cherry pick #18415 to release-4.0

Signed-off-by: ti-srebot <[email protected]>

config/config.go

@@ -681,7 +681,7 @@ var defaultConf = Config{
 		AllowAutoRandom:       false,
 		AllowsExpressionIndex: false,
 	},
-	EnableCollectExecutionInfo: false,
+	EnableCollectExecutionInfo: true,
 	EnableTelemetry:            true,
 }
 

distsql/select_result.go

@@ -235,7 +235,7 @@ func (r *selectResult) readFromChunk(ctx context.Context, chk *chunk.Chunk) erro
 
 func (r *selectResult) updateCopRuntimeStats(detail *execdetails.ExecDetails, respTime time.Duration) {
 	callee := detail.CalleeAddress
-	if r.ctx.GetSessionVars().StmtCtx.RuntimeStatsColl == nil || callee == "" {
+	if r.rootPlanID == nil || r.ctx.GetSessionVars().StmtCtx.RuntimeStatsColl == nil || callee == "" {
 		return
 	}
 	if len(r.selectResp.GetExecutionSummaries()) != len(r.copPlanIDs) {

infoschema/tables_test.go

@@ -880,6 +880,7 @@ func (s *testTableSuite) TestSelectHiddenColumn(c *C) {
 func (s *testTableSuite) TestStmtSummaryTable(c *C) {
 	tk := s.newTestKitWithRoot(c)
 
+	tk.MustExec("set @@tidb_enable_collect_execution_info=0;")
 	tk.MustQuery("select column_comment from information_schema.columns " +
 		"where table_name='STATEMENTS_SUMMARY' and column_name='STMT_TYPE'",
 	).Check(testkit.Rows("Statement type"))

sessionctx/variable/sysvar.go

@@ -720,6 +720,12 @@ var defaultSysVars = []*SysVar{
 	{ScopeSession, TiDBQueryLogMaxLen, strconv.Itoa(logutil.DefaultQueryLogMaxLen)},
 	{ScopeSession, TiDBCheckMb4ValueInUTF8, BoolToIntStr(config.GetGlobalConfig().CheckMb4ValueInUTF8)},
 	{ScopeSession, TiDBFoundInPlanCache, BoolToIntStr(DefTiDBFoundInPlanCache)},
+<<<<<<< HEAD
+=======
+	{ScopeSession, TiDBEnableCollectExecutionInfo, BoolToIntStr(DefTiDBEnableCollectExecutionInfo)},
+	{ScopeSession, TiDBAllowAutoRandExplicitInsert, boolToOnOff(DefTiDBAllowAutoRandExplicitInsert)},
+	{ScopeGlobal | ScopeSession, TiDBEnableClusteredIndex, BoolToIntStr(DefTiDBEnableClusteredIndex)},
+>>>>>>> 5574e1a... config: enable collect execution information by default (#18415)
 	{ScopeGlobal, TiDBSlowLogMasking, BoolToIntStr(DefTiDBSlowLogMasking)},
 	{ScopeSession, TiDBEnableCollectExecutionInfo, BoolToIntStr(DefTiDBEnableCollectExecutionInfo)},
 	{ScopeGlobal, TiDBEnableTelemetry, BoolToIntStr(DefTiDBEnableTelemetry)},

sessionctx/variable/tidb_vars.go

@@ -492,6 +492,12 @@ const (
 	DefTiDBMetricSchemaStep            = 60 // 60s
 	DefTiDBMetricSchemaRangeDuration   = 60 // 60s
 	DefTiDBFoundInPlanCache            = false
+<<<<<<< HEAD
+=======
+	DefTiDBEnableCollectExecutionInfo  = true
+	DefTiDBAllowAutoRandExplicitInsert = false
+	DefTiDBEnableClusteredIndex        = false
+>>>>>>> 5574e1a... config: enable collect execution information by default (#18415)
 	DefTiDBSlowLogMasking              = false
 	DefTiDBEnableCollectExecutionInfo  = false
 	DefTiDBEnableTelemetry             = true