Clone the originalSchema

Signed-off-by: hi-rustin <rustin.liu@gmail.com>
pingcap · Nov 22, 2023 · 1168a6e · 1168a6e
1 parent 0fd354c
commit 1168a6e
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/pkg/planner/core/rule_join_reorder.go b/pkg/planner/core/rule_join_reorder.go
@@ -316,7 +316,8 @@ func (s *joinReOrderSolver) optimizeRecursive(ctx sessionctx.Context, p LogicalP
  proj := LogicalProjection{
  Exprs: expression.Column2Exprs(originalSchema.Columns),
  }.Init(p.SCtx(), p.SelectBlockOffset())
- proj.SetSchema(originalSchema)
+ // Clone the schema here, because the schema may be changed by the projection optimization later.
+ proj.SetSchema(originalSchema.Clone())
  proj.SetChildren(p)
  p = proj
  }