diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index 42ab2f7a2f..4d212a1c3d 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -3318,10 +3318,11 @@ static int32_t checkProjectAlias(STranslateContext* pCxt, SNodeList* pProjection
 }
 
 static int32_t translateProjectionList(STranslateContext* pCxt, SSelectStmt* pSelect) {
-  if (pSelect->isSubquery) {
-    return checkProjectAlias(pCxt, pSelect->pProjectionList, NULL);
+  if (!pSelect->isSubquery) {
+    return rewriteProjectAlias(pSelect->pProjectionList);
+  } else {
+    return TSDB_CODE_SUCCESS;
   }
-  return rewriteProjectAlias(pSelect->pProjectionList);
 }
 
 static int32_t translateSelectList(STranslateContext* pCxt, SSelectStmt* pSelect) {
diff --git a/tests/script/tsim/query/unionall_as_table.sim b/tests/script/tsim/query/unionall_as_table.sim
index f8145d4e97..a03ecac34a 100644
--- a/tests/script/tsim/query/unionall_as_table.sim
+++ b/tests/script/tsim/query/unionall_as_table.sim
@@ -1,5 +1,6 @@
 system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
+system sh/cfg.sh -n dnode1 -c keepColumnName -v 1
 system sh/exec.sh -n dnode1 -s start
 sql connect
 
@@ -50,4 +51,15 @@ print $data00
 if $data00 != 2 then
   return -1
 endi
+sql select count(*) from (select f, f from ctcount)
+print $data00
+if $data00 != 2 then
+  return -1
+endi
+sql select count(*) from (select last(ts), first(ts) from ctcount);
+print $data00
+if $data00 != 1 then
+  return -1
+endi
+sql_error select f from (select f, f from ctcount);
 system sh/exec.sh -n dnode1 -s stop -x SIGINT