diff --git a/pkg/executor/analyze.go b/pkg/executor/analyze.go
index 14d4296d370ba..b581c34d12dfa 100644
--- a/pkg/executor/analyze.go
+++ b/pkg/executor/analyze.go
@@ -469,10 +469,6 @@ func (e *AnalyzeExec) handleResultsErrorWithConcurrency(ctx context.Context, sta
 	panicCnt := 0
 	var err error
 	for panicCnt < statsConcurrency {
-		if err := e.Ctx().GetSessionVars().SQLKiller.HandleSignal(); err != nil {
-			close(saveResultsCh)
-			return err
-		}
 		results, ok := <-resultsCh
 		if !ok {
 			break
diff --git a/pkg/planner/core/exhaust_physical_plans.go b/pkg/planner/core/exhaust_physical_plans.go
index aae131ebfc9f0..9df94a7869b89 100644
--- a/pkg/planner/core/exhaust_physical_plans.go
+++ b/pkg/planner/core/exhaust_physical_plans.go
@@ -229,7 +229,9 @@ func GetMergeJoin(p *LogicalJoin, prop *property.PhysicalProperty, schema *expre
 		p.SCtx().GetSessionVars().StmtCtx.SetHintWarning(
 			"Some MERGE_JOIN and NO_MERGE_JOIN hints conflict, NO_MERGE_JOIN is ignored")
 	}
-
+	if !p.SCtx().GetSessionVars().InRestrictedSQL {
+		fmt.Println("check here")
+	}
 	// If TiDB_SMJ hint is existed, it should consider enforce merge join,
 	// because we can't trust lhsChildProperty completely.
 	if (p.PreferJoinType&h.PreferMergeJoin) > 0 ||
@@ -424,7 +426,9 @@ func getHashJoins(p *LogicalJoin, prop *property.PhysicalProperty) (joins []base
 			joins = append(joins, getHashJoin(p, prop, 0, false))
 		}
 	}
-
+	if !p.SCtx().GetSessionVars().InRestrictedSQL {
+		fmt.Println("fuck")
+	}
 	forced = (p.PreferJoinType&h.PreferHashJoin > 0) || forceLeftToBuild || forceRightToBuild
 	shouldSkipHashJoin := shouldSkipHashJoin(p)
 	if !forced && shouldSkipHashJoin {
@@ -434,6 +438,9 @@ func getHashJoins(p *LogicalJoin, prop *property.PhysicalProperty) (joins []base
 			"A conflict between the HASH_JOIN hint and the NO_HASH_JOIN hint, " +
 				"or the tidb_opt_enable_hash_join system variable, the HASH_JOIN hint will take precedence.")
 	}
+	if !p.SCtx().GetSessionVars().InRestrictedSQL {
+		logutil.BgLogger().Info("not bug", zap.Any("joins", joins))
+	}
 	return
 }
 
@@ -2432,6 +2439,10 @@ func (p *LogicalJoin) ExhaustPhysicalPlans(prop *property.PhysicalProperty) ([]b
 	}
 
 	if !p.isNAAJ() {
+		if !p.SCtx().GetSessionVars().InRestrictedSQL {
+			fmt.Println("wwz")
+		}
+		logutil.BgLogger().Info("fuckfuck")
 		// naaj refuse merge join and index join.
 		mergeJoins := GetMergeJoin(p, prop, p.Schema(), p.StatsInfo(), p.Children()[0].StatsInfo(), p.Children()[1].StatsInfo())
 		if (p.PreferJoinType&h.PreferMergeJoin) > 0 && len(mergeJoins) > 0 {
diff --git a/pkg/planner/core/find_best_task.go b/pkg/planner/core/find_best_task.go
index 932a05dbd0e03..b68c943867d84 100644
--- a/pkg/planner/core/find_best_task.go
+++ b/pkg/planner/core/find_best_task.go
@@ -162,6 +162,9 @@ func rebuildChildTasks(p *logicalop.BaseLogicalPlan, childTasks *[]base.Task, pp
 		}
 		*childTasks = append(*childTasks, childTask)
 	}
+	if len(*childTasks) == 0 {
+		fmt.Println("fuckyou")
+	}
 	return nil
 }
 
@@ -183,13 +186,14 @@ func enumeratePhysicalPlans4Task(
 	if _, ok := p.Self().(*LogicalSequence); ok {
 		iteration = iterateChildPlan4LogicalSequence
 	}
-	if !p.SCtx().GetSessionVars().InRestrictedSQL {
-		fmt.Println("fuck")
-	}
 	for _, pp := range physicalPlans {
 		timeStampNow := p.GetLogicalTS4TaskMap()
 		savedPlanID := p.SCtx().GetSessionVars().PlanID.Load()
-
+		if !p.SCtx().GetSessionVars().InRestrictedSQL {
+			if len(childTasks) == 1 && childTasks[0] == nil {
+				logutil.BgLogger().Info("before fuck enumeratePhysicalPlans4Task", zap.Int("len child task", len(childTasks)))
+			}
+		}
 		childTasks, curCntPlan, childCnts, err = iteration(p, pp, childTasks, childCnts, prop, opt)
 		if err != nil {
 			return nil, 0, err
@@ -199,7 +203,11 @@ func enumeratePhysicalPlans4Task(
 		if len(childTasks) != p.ChildLen() {
 			continue
 		}
-
+		if !p.SCtx().GetSessionVars().InRestrictedSQL {
+			if len(childTasks) == 1 && childTasks[0] == nil {
+				logutil.BgLogger().Info("fuck enumeratePhysicalPlans4Task", zap.Int("len child task", len(childTasks)))
+			}
+		}
 		// If the target plan can be found in this physicalPlan(pp), rebuild childTasks to build the corresponding combination.
 		if planCounter.IsForce() && int64(*planCounter) <= curCntPlan {
 			p.SCtx().GetSessionVars().PlanID.Store(savedPlanID)
@@ -209,6 +217,11 @@ func enumeratePhysicalPlans4Task(
 				return nil, 0, err
 			}
 		}
+		if !p.SCtx().GetSessionVars().InRestrictedSQL {
+			if len(childTasks) == 1 && childTasks[0] == nil {
+				logutil.BgLogger().Info("fuck enumeratePhysicalPlans4Task after ", zap.Int("len child task", len(childTasks)))
+			}
+		}
 
 		// Combine the best child tasks with parent physical plan.
 		curTask := pp.Attach2Task(childTasks...)
@@ -261,22 +274,42 @@ func iteratePhysicalPlan4BaseLogical(
 ) ([]base.Task, int64, []int64, error) {
 	// Find best child tasks firstly.
 	childTasks = childTasks[:0]
+	if !p.SCtx().GetSessionVars().InRestrictedSQL {
+		fmt.Println("check")
+	}
 	// The curCntPlan records the number of possible plans for pp
 	curCntPlan := int64(1)
 	for j, child := range p.Children() {
+		//if child == nil {
+		//	logutil.BgLogger().Info("WTF")
+		//}
+		//if child.ExplainInfo() == "" {
+		//	logutil.BgLogger().Info("WTF")
+		//}
 		childProp := selfPhysicalPlan.GetChildReqProps(j)
+		//if !p.SCtx().GetSessionVars().InRestrictedSQL {
+		//logutil.BgLogger().Info("fuck child", zap.String("child.ExplainInfo()", child.ExplainInfo()))
+		//}
+		if _, ok := child.(*LogicalCTETable); ok {
+			fmt.Println("here")
+		}
 		childTask, cnt, err := child.FindBestTask(childProp, &PlanCounterDisabled, opt)
 		childCnts[j] = cnt
 		if err != nil {
 			return nil, 0, childCnts, err
 		}
+		if childTask == nil {
+			fmt.Println("???????")
+		}
 		curCntPlan = curCntPlan * cnt
 		if childTask != nil && childTask.Invalid() {
 			return nil, 0, childCnts, nil
 		}
 		childTasks = append(childTasks, childTask)
 	}
-
+	if len(childTasks) == 1 && childTasks[0] == nil {
+		logutil.BgLogger().Info("iteratePhysicalPlan4BaseLogical meet bug")
+	}
 	// This check makes sure that there is no invalid child task.
 	if len(childTasks) != p.ChildLen() {
 		return nil, 0, childCnts, nil
@@ -528,6 +561,9 @@ func findBestTask(lp base.LogicalPlan, prop *property.PhysicalProperty, planCoun
 	var hintWorksWithProp bool
 	// Maybe the plan can satisfy the required property,
 	// so we try to get the task without the enforced sort first.
+	if !lp.SCtx().GetSessionVars().InRestrictedSQL {
+		fmt.Println("here")
+	}
 	plansFitsProp, hintWorksWithProp, err = p.Self().ExhaustPhysicalPlans(newProp)
 	if err != nil {
 		return nil, 0, err
@@ -2917,7 +2953,7 @@ func findBestTask4LogicalCTE(p *LogicalCTE, prop *property.PhysicalProperty, cou
 
 func findBestTask4LogicalCTETable(p *LogicalCTETable, prop *property.PhysicalProperty, _ *base.PlanCounterTp, _ *optimizetrace.PhysicalOptimizeOp) (t base.Task, cntPlan int64, err error) {
 	if !prop.IsSortItemEmpty() {
-		return nil, 1, nil
+		return base.InvalidTask, 0, nil
 	}
 
 	pcteTable := PhysicalCTETable{IDForStorage: p.IDForStorage}.Init(p.SCtx(), p.StatsInfo())
diff --git a/pkg/planner/core/issuetest/BUILD.bazel b/pkg/planner/core/issuetest/BUILD.bazel
index 41e03b9c6d4e3..f8b7ae77aeb3c 100644
--- a/pkg/planner/core/issuetest/BUILD.bazel
+++ b/pkg/planner/core/issuetest/BUILD.bazel
@@ -10,6 +10,7 @@ go_test(
     data = glob(["testdata/**"]),
     flaky = True,
     race = "on",
+    shard_count = 3,
     deps = [
         "//pkg/parser",
         "//pkg/planner",
diff --git a/pkg/planner/core/issuetest/planner_issue_test.go b/pkg/planner/core/issuetest/planner_issue_test.go
index a496b649e94ac..5792a77bf2a3f 100644
--- a/pkg/planner/core/issuetest/planner_issue_test.go
+++ b/pkg/planner/core/issuetest/planner_issue_test.go
@@ -117,4 +117,5 @@ WHERE
     FROM
       w
   );`)
+	tk.MustQuery(`show warnings`).Check(testkit.Rows())
 }
diff --git a/pkg/planner/core/optimizer.go b/pkg/planner/core/optimizer.go
index 2e42de856ee38..a292d65f98b4c 100644
--- a/pkg/planner/core/optimizer.go
+++ b/pkg/planner/core/optimizer.go
@@ -1073,9 +1073,6 @@ func physicalOptimize(logic base.LogicalPlan, planCounter *base.PlanCounterTp) (
 			}
 		}()
 	}
-	if !logic.SCtx().GetSessionVars().InRestrictedSQL {
-		fmt.Println("fuck")
-	}
 	logic.SCtx().GetSessionVars().StmtCtx.TaskMapBakTS = 0
 	t, _, err := logic.FindBestTask(prop, planCounter, opt)
 	if err != nil {
diff --git a/pkg/planner/core/task.go b/pkg/planner/core/task.go
index b24ac5abddcab..5779ad5d8759b 100644
--- a/pkg/planner/core/task.go
+++ b/pkg/planner/core/task.go
@@ -1089,14 +1089,14 @@ func (p *PhysicalUnionAll) Attach2Task(tasks ...base.Task) base.Task {
 
 // Attach2Task implements PhysicalPlan interface.
 func (sel *PhysicalSelection) Attach2Task(tasks ...base.Task) base.Task {
-	if tasks[0] == nil {
-		fmt.Println("fuck")
-	}
 	if mppTask, _ := tasks[0].(*MppTask); mppTask != nil { // always push to mpp task.
 		if expression.CanExprsPushDown(GetPushDownCtx(sel.SCtx()), sel.Conditions, kv.TiFlash) {
 			return attachPlan2Task(sel, mppTask.Copy())
 		}
 	}
+	if tasks[0] == nil {
+		fmt.Println("fuck")
+	}
 	t := tasks[0].ConvertToRootTask(sel.SCtx())
 	return attachPlan2Task(sel, t)
 }
diff --git a/pkg/server/main_test.go b/pkg/server/main_test.go
index 84840e2d7b0b5..806182bc61e8f 100644
--- a/pkg/server/main_test.go
+++ b/pkg/server/main_test.go
@@ -63,6 +63,7 @@ func TestMain(m *testing.M) {
 
 	opts := []goleak.Option{
 		goleak.IgnoreTopFunction("github.com/dgraph-io/ristretto.(*defaultPolicy).processItems"),
+		goleak.IgnoreTopFunction("github.com/dgraph-io/ristretto.(*Cache).processItems"),
 		goleak.IgnoreTopFunction("github.com/golang/glog.(*fileSink).flushDaemon"),
 		goleak.IgnoreTopFunction("github.com/bazelbuild/rules_go/go/tools/bzltestutil.RegisterTimeoutHandler.func1"),
 		goleak.IgnoreTopFunction("github.com/lestrrat-go/httprc.runFetchWorker"),