planner: column pruning should use a shallow copy slice (#53237) (#53322

) close #52768
pingcap · Jun 9, 2024 · a03d354 · a03d354
1 parent b4f3a10
commit a03d354
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/planner/core/rule_column_pruning.go b/planner/core/rule_column_pruning.go
@@ -32,7 +32,7 @@ type columnPruner struct {
 }
 
 func (*columnPruner) optimize(_ context.Context, lp LogicalPlan, opt *logicalOptimizeOp) (LogicalPlan, error) {
-	err := lp.PruneColumns(lp.Schema().Columns, opt)
+	err := lp.PruneColumns(append([]*expression.Column{}, lp.Schema().Columns...), opt)
 	return lp, err
 }