planner: remove slicegrow in the planner.core/unfoldWildStar (pingcap…

…#59266) close pingcap#59103
terry1purcell · Feb 6, 2025 · 6673923 · 6673923
1 parent 430fa8f
commit 6673923
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/pkg/planner/core/logical_plan_builder.go b/pkg/planner/core/logical_plan_builder.go
@@ -3507,6 +3507,7 @@ func (b *PlanBuilder) resolveGbyExprs(ctx context.Context, p base.LogicalPlan, g
 
 func (*PlanBuilder) unfoldWildStar(p base.LogicalPlan, selectFields []*ast.SelectField) (resultList []*ast.SelectField, err error) {
 	join, isJoin := p.(*logicalop.LogicalJoin)
+	resultList = make([]*ast.SelectField, 0, max(2, len(selectFields)))
 	for i, field := range selectFields {
 		if field.WildCard == nil {
 			resultList = append(resultList, field)