planner: cp refactor planner module's warning and note generation log…

…ic (get rid of unnecessary stack info) (pingcap#49390) (pingcap#49708)

close pingcap#49291

DEPS.bzl

@@ -3392,8 +3392,8 @@ def go_deps():
         name = "com_github_pingcap_errors",
         build_file_proto_mode = "disable_global",
         importpath = "github.com/pingcap/errors",
-        sum = "h1:m5ZsBa5o/0CkzZXfXLaThzKuR85SnHHetqBCpzQ30h8=",
-        version = "v0.11.5-0.20221009092201-b66cddb77c32",
+        sum = "h1:yqyP+k0mgRPpXJQDOCrtaG2YZym0ZDD+vt5JzlBUkrw=",
+        version = "v0.11.5-0.20231212100244-799fae176cfb",
     )
     go_repository(
         name = "com_github_pingcap_failpoint",

go.mod

@@ -70,7 +70,7 @@ require (
 	github.com/opentracing/opentracing-go v1.2.0
 	github.com/phayes/freeport v0.0.0-20180830031419-95f893ade6f2
 	github.com/pingcap/badger v1.5.1-0.20230103063557-828f39b09b6d
-	github.com/pingcap/errors v0.11.5-0.20221009092201-b66cddb77c32
+	github.com/pingcap/errors v0.11.5-0.20231212100244-799fae176cfb
 	github.com/pingcap/failpoint v0.0.0-20220801062533-2eaa32854a6c
 	github.com/pingcap/fn v0.0.0-20200306044125-d5540d389059
 	github.com/pingcap/kvproto v0.0.0-20231011074246-fa00d2b03372

go.sum

@@ -780,8 +780,8 @@ github.com/pingcap/check v0.0.0-20200212061837-5e12011dc712/go.mod h1:PYMCGwN0JH
 github.com/pingcap/errors v0.11.0/go.mod h1:Oi8TUi2kEtXXLMJk9l1cGmz20kV3TaQ0usTwv5KuLY8=
 github.com/pingcap/errors v0.11.4/go.mod h1:Oi8TUi2kEtXXLMJk9l1cGmz20kV3TaQ0usTwv5KuLY8=
 github.com/pingcap/errors v0.11.5-0.20190809092503-95897b64e011/go.mod h1:Oi8TUi2kEtXXLMJk9l1cGmz20kV3TaQ0usTwv5KuLY8=
-github.com/pingcap/errors v0.11.5-0.20221009092201-b66cddb77c32 h1:m5ZsBa5o/0CkzZXfXLaThzKuR85SnHHetqBCpzQ30h8=
-github.com/pingcap/errors v0.11.5-0.20221009092201-b66cddb77c32/go.mod h1:X2r9ueLEUZgtx2cIogM0v4Zj5uvvzhuuiu7Pn8HzMPg=
+github.com/pingcap/errors v0.11.5-0.20231212100244-799fae176cfb h1:yqyP+k0mgRPpXJQDOCrtaG2YZym0ZDD+vt5JzlBUkrw=
+github.com/pingcap/errors v0.11.5-0.20231212100244-799fae176cfb/go.mod h1:X2r9ueLEUZgtx2cIogM0v4Zj5uvvzhuuiu7Pn8HzMPg=
 github.com/pingcap/failpoint v0.0.0-20220801062533-2eaa32854a6c h1:CgbKAHto5CQgWM9fSBIvaxsJHuGP0uM74HXtv3MyyGQ=
 github.com/pingcap/failpoint v0.0.0-20220801062533-2eaa32854a6c/go.mod h1:4qGtCB0QK0wBzKtFEGDhxXnSnbQApw1gc9siScUl8ew=
 github.com/pingcap/fn v0.0.0-20200306044125-d5540d389059 h1:Pe2LbxRmbTfAoKJ65bZLmhahmvHm7n9DUxGRQT00208=

planner/core/common_plans.go

@@ -860,12 +860,12 @@ func (e *Explain) RenderResult() error {
 				// output cost formula and factor costs through warning under model ver2 and true_card_cost mode for cost calibration.
 				cost, _ := pp.getPlanCostVer2(property.RootTaskType, NewDefaultPlanCostOption())
 				trace := cost.trace
-				pp.SCtx().GetSessionVars().StmtCtx.AppendWarning(errors.Errorf("cost formula: %v", trace.formula))
+				pp.SCtx().GetSessionVars().StmtCtx.AppendWarning(errors.NewNoStackErrorf("cost formula: %v", trace.formula))
 				data, err := json.Marshal(trace.factorCosts)
 				if err != nil {
-					pp.SCtx().GetSessionVars().StmtCtx.AppendWarning(errors.Errorf("marshal factor costs error %v", err))
+					pp.SCtx().GetSessionVars().StmtCtx.AppendWarning(errors.NewNoStackErrorf("marshal factor costs error %v", err))
 				}
-				pp.SCtx().GetSessionVars().StmtCtx.AppendWarning(errors.Errorf("factor costs: %v", string(data)))
+				pp.SCtx().GetSessionVars().StmtCtx.AppendWarning(errors.NewNoStackErrorf("factor costs: %v", string(data)))
 
 				// output cost factor weights for cost calibration
 				factors := defaultVer2Factors.tolist()
@@ -876,13 +876,13 @@ func (e *Explain) RenderResult() error {
 					}
 				}
 				if wstr, err := json.Marshal(weights); err != nil {
-					pp.SCtx().GetSessionVars().StmtCtx.AppendWarning(errors.Errorf("marshal weights error %v", err))
+					pp.SCtx().GetSessionVars().StmtCtx.AppendWarning(errors.NewNoStackErrorf("marshal weights error %v", err))
 				} else {
-					pp.SCtx().GetSessionVars().StmtCtx.AppendWarning(errors.Errorf("factor weights: %v", string(wstr)))
+					pp.SCtx().GetSessionVars().StmtCtx.AppendWarning(errors.NewNoStackErrorf("factor weights: %v", string(wstr)))
 				}
 			}
 		} else {
-			e.SCtx().GetSessionVars().StmtCtx.AppendWarning(errors.Errorf("'explain format=true_card_cost' cannot support this plan"))
+			e.SCtx().GetSessionVars().StmtCtx.AppendWarning(errors.NewNoStackError("'explain format=true_card_cost' cannot support this plan"))
 		}
 	}
 

planner/core/exhaust_physical_plans.go

@@ -234,7 +234,7 @@ func (p *LogicalJoin) GetMergeJoin(prop *property.PhysicalProperty, schema *expr
 		if p.preferJoinType&preferMergeJoin == 0 {
 			return nil
 		}
-		p.SCtx().GetSessionVars().StmtCtx.AppendWarning(ErrInternal.GenWithStack(
+		p.SCtx().GetSessionVars().StmtCtx.AppendWarning(ErrInternal.FastGen(
 			"Some MERGE_JOIN and NO_MERGE_JOIN hints conflict, NO_MERGE_JOIN is ignored"))
 	}
 
@@ -399,7 +399,7 @@ func (p *LogicalJoin) getHashJoins(prop *property.PhysicalProperty) (joins []Phy
 	forceLeftToBuild := ((p.preferJoinType & preferLeftAsHJBuild) > 0) || ((p.preferJoinType & preferRightAsHJProbe) > 0)
 	forceRightToBuild := ((p.preferJoinType & preferRightAsHJBuild) > 0) || ((p.preferJoinType & preferLeftAsHJProbe) > 0)
 	if forceLeftToBuild && forceRightToBuild {
-		p.ctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.GenWithStack("Some HASH_JOIN_BUILD and HASH_JOIN_PROBE hints are conflicts, please check the hints"))
+		p.ctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.FastGen("Some HASH_JOIN_BUILD and HASH_JOIN_PROBE hints are conflicts, please check the hints"))
 		forceLeftToBuild = false
 		forceRightToBuild = false
 	}
@@ -410,7 +410,7 @@ func (p *LogicalJoin) getHashJoins(prop *property.PhysicalProperty) (joins []Phy
 		joins = append(joins, p.getHashJoin(prop, 1, false))
 		if forceLeftToBuild || forceRightToBuild {
 			// Do not support specifying the build side.
-			p.ctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.GenWithStack(fmt.Sprintf("We can't use the HASH_JOIN_BUILD or HASH_JOIN_PROBE hint for %s, please check the hint", p.JoinType)))
+			p.ctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.FastGen(fmt.Sprintf("We can't use the HASH_JOIN_BUILD or HASH_JOIN_PROBE hint for %s, please check the hint", p.JoinType)))
 			forceLeftToBuild = false
 			forceRightToBuild = false
 		}
@@ -455,7 +455,7 @@ func (p *LogicalJoin) getHashJoins(prop *property.PhysicalProperty) (joins []Phy
 	if !forced && p.shouldSkipHashJoin() {
 		return nil, false
 	} else if forced && p.shouldSkipHashJoin() {
-		p.SCtx().GetSessionVars().StmtCtx.AppendWarning(ErrInternal.GenWithStack(
+		p.SCtx().GetSessionVars().StmtCtx.AppendWarning(ErrInternal.FastGen(
 			"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."))
 	}
@@ -2037,13 +2037,13 @@ func (p *LogicalJoin) tryToGetIndexJoin(prop *property.PhysicalProperty) (indexJ
 	// Handle hints conflict first.
 	stmtCtx := p.SCtx().GetSessionVars().StmtCtx
 	if p.preferAny(preferLeftAsINLJInner, preferRightAsINLJInner) && p.preferAny(preferNoIndexJoin) {
-		stmtCtx.AppendWarning(ErrInternal.GenWithStack("Some INL_JOIN and NO_INDEX_JOIN hints conflict, NO_INDEX_JOIN may be ignored"))
+		stmtCtx.AppendWarning(ErrInternal.FastGen("Some INL_JOIN and NO_INDEX_JOIN hints conflict, NO_INDEX_JOIN may be ignored"))
 	}
 	if p.preferAny(preferLeftAsINLHJInner, preferRightAsINLHJInner) && p.preferAny(preferNoIndexHashJoin) {
-		stmtCtx.AppendWarning(ErrInternal.GenWithStack("Some INL_HASH_JOIN and NO_INDEX_HASH_JOIN hints conflict, NO_INDEX_HASH_JOIN may be ignored"))
+		stmtCtx.AppendWarning(ErrInternal.FastGen("Some INL_HASH_JOIN and NO_INDEX_HASH_JOIN hints conflict, NO_INDEX_HASH_JOIN may be ignored"))
 	}
 	if p.preferAny(preferLeftAsINLMJInner, preferRightAsINLMJInner) && p.preferAny(preferNoIndexMergeJoin) {
-		stmtCtx.AppendWarning(ErrInternal.GenWithStack("Some INL_MERGE_JOIN and NO_INDEX_MERGE_JOIN hints conflict, NO_INDEX_MERGE_JOIN may be ignored"))
+		stmtCtx.AppendWarning(ErrInternal.FastGen("Some INL_MERGE_JOIN and NO_INDEX_MERGE_JOIN hints conflict, NO_INDEX_MERGE_JOIN may be ignored"))
 	}
 
 	candidates, canForced = p.handleForceIndexJoinHints(prop, candidates)
@@ -2123,7 +2123,7 @@ func (p *LogicalJoin) handleForceIndexJoinHints(prop *property.PhysicalProperty,
 			errMsg += " without column equal ON condition"
 		}
 		// Generate warning message to client.
-		p.SCtx().GetSessionVars().StmtCtx.AppendWarning(ErrInternal.GenWithStack(errMsg))
+		p.SCtx().GetSessionVars().StmtCtx.AppendWarning(ErrInternal.FastGen(errMsg))
 	}
 	return candidates, false
 }
@@ -2268,7 +2268,7 @@ func (p *LogicalJoin) exhaustPhysicalPlans(prop *property.PhysicalProperty) ([]P
 	if !isJoinHintSupportedInMPPMode(p.preferJoinType) {
 		if hasMPPJoinHints(p.preferJoinType) {
 			// If there are MPP hints but has some conflicts join method hints, all the join hints are invalid.
-			p.SCtx().GetSessionVars().StmtCtx.AppendWarning(ErrInternal.GenWithStack("The MPP join hints are in conflict, and you can only specify join method hints that are currently supported by MPP mode now"))
+			p.SCtx().GetSessionVars().StmtCtx.AppendWarning(ErrInternal.FastGen("The MPP join hints are in conflict, and you can only specify join method hints that are currently supported by MPP mode now"))
 			p.preferJoinType = 0
 		} else {
 			// If there are no MPP hints but has some conflicts join method hints, the MPP mode will be blocked.
@@ -2313,7 +2313,7 @@ func (p *LogicalJoin) exhaustPhysicalPlans(prop *property.PhysicalProperty) ([]P
 			hasMppHints = true
 		}
 		if hasMppHints {
-			warning := ErrInternal.GenWithStack(errMsg)
+			warning := ErrInternal.FastGen(errMsg)
 			p.ctx.GetSessionVars().StmtCtx.AppendWarning(warning)
 		}
 	}
@@ -2435,7 +2435,7 @@ func (p *LogicalJoin) tryToGetMppHashJoin(prop *property.PhysicalProperty, useBC
 	forceLeftToBuild := ((p.preferJoinType & preferLeftAsHJBuild) > 0) || ((p.preferJoinType & preferRightAsHJProbe) > 0)
 	forceRightToBuild := ((p.preferJoinType & preferRightAsHJBuild) > 0) || ((p.preferJoinType & preferLeftAsHJProbe) > 0)
 	if forceLeftToBuild && forceRightToBuild {
-		p.ctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.GenWithStack("Some HASH_JOIN_BUILD and HASH_JOIN_PROBE hints are conflicts, please check the hints"))
+		p.ctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.FastGen("Some HASH_JOIN_BUILD and HASH_JOIN_PROBE hints are conflicts, please check the hints"))
 		forceLeftToBuild = false
 		forceRightToBuild = false
 	}
@@ -2482,7 +2482,7 @@ func (p *LogicalJoin) tryToGetMppHashJoin(prop *property.PhysicalProperty, useBC
 		if !match {
 			if fixedBuildSide {
 				// A warning will be generated if the build side is fixed, but we attempt to change it using the hint.
-				p.ctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.GenWithStack("Some HASH_JOIN_BUILD and HASH_JOIN_PROBE hints cannot be utilized for MPP joins, please check the hints"))
+				p.ctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.FastGen("Some HASH_JOIN_BUILD and HASH_JOIN_PROBE hints cannot be utilized for MPP joins, please check the hints"))
 			} else {
 				// The HASH_JOIN_BUILD OR HASH_JOIN_PROBE hints can take effective.
 				preferredBuildIndex = 1 - preferredBuildIndex
@@ -2636,8 +2636,7 @@ func pushLimitOrTopNForcibly(p LogicalPlan) bool {
 		}
 		if *preferPushDown {
 			errMsg := "Optimizer Hint LIMIT_TO_COP is inapplicable"
-			warning := ErrInternal.GenWithStack(errMsg)
-			p.SCtx().GetSessionVars().StmtCtx.AppendWarning(warning)
+			p.SCtx().GetSessionVars().StmtCtx.AppendWarning(ErrInternal.FastGen(errMsg))
 			*preferPushDown = false
 		}
 	}
@@ -2724,7 +2723,7 @@ func (la *LogicalApply) exhaustPhysicalPlans(prop *property.PhysicalProperty) ([
 		return nil, true, nil
 	}
 	if !prop.IsSortItemEmpty() && la.SCtx().GetSessionVars().EnableParallelApply {
-		la.ctx.GetSessionVars().StmtCtx.AppendWarning(errors.Errorf("Parallel Apply rejects the possible order properties of its outer child currently"))
+		la.ctx.GetSessionVars().StmtCtx.AppendWarning(errors.NewNoStackErrorf("Parallel Apply rejects the possible order properties of its outer child currently"))
 		return nil, true, nil
 	}
 	disableAggPushDownToCop(la.children[0])
@@ -3126,7 +3125,7 @@ func (la *LogicalAggregation) checkCanPushDownToMPP() bool {
 		}
 	}
 	if hasUnsupportedDistinct {
-		warnErr := errors.New("Aggregation can not be pushed to storage layer in mpp mode because it contains agg function with distinct")
+		warnErr := errors.NewNoStackError("Aggregation can not be pushed to storage layer in mpp mode because it contains agg function with distinct")
 		if la.ctx.GetSessionVars().StmtCtx.InExplainStmt {
 			la.ctx.GetSessionVars().StmtCtx.AppendWarning(warnErr)
 		} else {
@@ -3295,7 +3294,7 @@ func (la *LogicalAggregation) getHashAggs(prop *property.PhysicalProperty) []Phy
 			hasMppHints = true
 		}
 		if hasMppHints {
-			warning := ErrInternal.GenWithStack(errMsg)
+			warning := ErrInternal.FastGen(errMsg)
 			la.ctx.GetSessionVars().StmtCtx.AppendWarning(warning)
 		}
 	}
@@ -3325,7 +3324,7 @@ func (la *LogicalAggregation) ResetHintIfConflicted() (preferHash bool, preferSt
 	preferStream = (la.aggHints.preferAggType & preferStreamAgg) > 0
 	if preferHash && preferStream {
 		errMsg := "Optimizer aggregation hints are conflicted"
-		warning := ErrInternal.GenWithStack(errMsg)
+		warning := ErrInternal.FastGen(errMsg)
 		la.ctx.GetSessionVars().StmtCtx.AppendWarning(warning)
 		la.aggHints.preferAggType = 0
 		preferHash, preferStream = false, false
@@ -3337,7 +3336,7 @@ func (la *LogicalAggregation) exhaustPhysicalPlans(prop *property.PhysicalProper
 	if la.aggHints.preferAggToCop {
 		if !la.canPushToCop(kv.TiKV) {
 			errMsg := "Optimizer Hint AGG_TO_COP is inapplicable"
-			warning := ErrInternal.GenWithStack(errMsg)
+			warning := ErrInternal.FastGen(errMsg)
 			la.ctx.GetSessionVars().StmtCtx.AppendWarning(warning)
 			la.aggHints.preferAggToCop = false
 		}
@@ -3359,7 +3358,7 @@ func (la *LogicalAggregation) exhaustPhysicalPlans(prop *property.PhysicalProper
 
 	if streamAggs == nil && preferStream && !prop.IsSortItemEmpty() {
 		errMsg := "Optimizer Hint STREAM_AGG is inapplicable"
-		warning := ErrInternal.GenWithStack(errMsg)
+		warning := ErrInternal.FastGen(errMsg)
 		la.ctx.GetSessionVars().StmtCtx.AppendWarning(warning)
 	}
 

planner/core/expression_rewriter.go

@@ -538,7 +538,7 @@ func (er *expressionRewriter) handleCompareSubquery(ctx context.Context, v *ast.
 
 	noDecorrelate := hintFlags&HintFlagNoDecorrelate > 0
 	if noDecorrelate && len(extractCorColumnsBySchema4LogicalPlan(np, er.p.Schema())) == 0 {
-		er.sctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.GenWithStack(
+		er.sctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.FastGen(
 			"NO_DECORRELATE() is inapplicable because there are no correlated columns."))
 		noDecorrelate = false
 	}
@@ -841,13 +841,13 @@ func (er *expressionRewriter) handleExistSubquery(ctx context.Context, v *ast.Ex
 
 	noDecorrelate := hintFlags&HintFlagNoDecorrelate > 0
 	if noDecorrelate && len(extractCorColumnsBySchema4LogicalPlan(np, er.p.Schema())) == 0 {
-		er.sctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.GenWithStack(
+		er.sctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.FastGen(
 			"NO_DECORRELATE() is inapplicable because there are no correlated columns."))
 		noDecorrelate = false
 	}
 	semiJoinRewrite := hintFlags&HintFlagSemiJoinRewrite > 0
 	if semiJoinRewrite && noDecorrelate {
-		er.sctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.GenWithStack(
+		er.sctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.FastGen(
 			"NO_DECORRELATE() and SEMI_JOIN_REWRITE() are in conflict. Both will be ineffective."))
 		noDecorrelate = false
 		semiJoinRewrite = false
@@ -988,7 +988,7 @@ func (er *expressionRewriter) handleInSubquery(ctx context.Context, v *ast.Patte
 	noDecorrelate := hintFlags&HintFlagNoDecorrelate > 0
 	corCols := extractCorColumnsBySchema4LogicalPlan(np, er.p.Schema())
 	if len(corCols) == 0 && noDecorrelate {
-		er.sctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.GenWithStack(
+		er.sctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.FastGen(
 			"NO_DECORRELATE() is inapplicable because there are no correlated columns."))
 		noDecorrelate = false
 	}
@@ -1048,7 +1048,7 @@ func (er *expressionRewriter) handleScalarSubquery(ctx context.Context, v *ast.S
 
 	noDecorrelate := hintFlags&HintFlagNoDecorrelate > 0
 	if noDecorrelate && len(extractCorColumnsBySchema4LogicalPlan(np, er.p.Schema())) == 0 {
-		er.sctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.GenWithStack(
+		er.sctx.GetSessionVars().StmtCtx.AppendWarning(ErrInternal.FastGen(
 			"NO_DECORRELATE() is inapplicable because there are no correlated columns."))
 		noDecorrelate = false
 	}
@@ -1396,7 +1396,7 @@ func (er *expressionRewriter) rewriteVariable(v *ast.VariableExpr) {
 	}
 	if sysVar.IsNoop && !variable.EnableNoopVariables.Load() {
 		// The variable does nothing, append a warning to the statement output.
-		sessionVars.StmtCtx.AppendWarning(ErrGettingNoopVariable.GenWithStackByArgs(sysVar.Name))
+		sessionVars.StmtCtx.AppendWarning(ErrGettingNoopVariable.FastGenByArgs(sysVar.Name))
 	}
 	if sem.IsEnabled() && sem.IsInvisibleSysVar(sysVar.Name) {
 		err := ErrSpecificAccessDenied.GenWithStackByArgs("RESTRICTED_VARIABLES_ADMIN")
@@ -2180,7 +2180,7 @@ func decodeKeyFromString(ctx sessionctx.Context, s string) string {
 	sc := ctx.GetSessionVars().StmtCtx
 	key, err := hex.DecodeString(s)
 	if err != nil {
-		sc.AppendWarning(errors.Errorf("invalid key: %X", key))
+		sc.AppendWarning(errors.NewNoStackErrorf("invalid key: %X", key))
 		return s
 	}
 	// Auto decode byte if needed.
@@ -2190,17 +2190,17 @@ func decodeKeyFromString(ctx sessionctx.Context, s string) string {
 	}
 	tableID := tablecodec.DecodeTableID(key)
 	if tableID == 0 {
-		sc.AppendWarning(errors.Errorf("invalid key: %X", key))
+		sc.AppendWarning(errors.NewNoStackErrorf("invalid key: %X", key))
 		return s
 	}
 	dm := domain.GetDomain(ctx)
 	if dm == nil {
-		sc.AppendWarning(errors.Errorf("domain not found when decoding key: %X", key))
+		sc.AppendWarning(errors.NewNoStackErrorf("domain not found when decoding key: %X", key))
 		return s
 	}
 	is := dm.InfoSchema()
 	if is == nil {
-		sc.AppendWarning(errors.Errorf("infoschema not found when decoding key: %X", key))
+		sc.AppendWarning(errors.NewNoStackErrorf("infoschema not found when decoding key: %X", key))
 		return s
 	}
 	tbl, _ := is.TableByID(tableID)
@@ -2230,7 +2230,7 @@ func decodeKeyFromString(ctx sessionctx.Context, s string) string {
 		}
 		return ret
 	}
-	sc.AppendWarning(errors.Errorf("invalid key: %X", key))
+	sc.AppendWarning(errors.NewNoStackErrorf("invalid key: %X", key))
 	return s
 }
 

planner/core/find_best_task.go

@@ -950,7 +950,7 @@ func (ds *DataSource) findBestTask(prop *property.PhysicalProperty, planCounter
 	pruningInfo := ds.getPruningInfo(candidates, prop)
 	defer func() {
 		if err == nil && t != nil && !t.invalid() && pruningInfo != "" {
-			warnErr := errors.New(pruningInfo)
+			warnErr := errors.NewNoStackError(pruningInfo)
 			if ds.ctx.GetSessionVars().StmtCtx.InVerboseExplain {
 				ds.ctx.GetSessionVars().StmtCtx.AppendNote(warnErr)
 			} else {