1 files changed, 2 insertions, 0 deletions
diff --git a/src/select.c b/src/select.c
index eabbcc8c9..efb6e4173 100644
--- a/src/select.c
+++ b/src/select.c
@@ -3213,6 +3213,8 @@ static Expr *substExpr(
         pExpr = pNew;
       }
     }
+  }else if( pExpr->op==TK_IF_NULL_ROW && pExpr->iTable==pSubst->iTable ){
+    pExpr->iTable = pSubst->iNewTable;
   }else{
     pExpr->pLeft = substExpr(pSubst, pExpr->pLeft);
     pExpr->pRight = substExpr(pSubst, pExpr->pRight);