Github user weinan003 commented on a diff in the pull request:
https://github.com/apache/incubator-hawq/pull/1349#discussion_r177944185
--- Diff: contrib/vexecutor/vexecutor.c ---
@@ -66,12 +75,47 @@ _PG_fini(void)
vmthd.ExecEndNode_Hook = NULL;
}
-static PlanState* VExecInitNode(PlanState *node,EState *eState,int eflags)
+static void backportTupleDescriptor(PlanState* ps,TupleDesc td)
--- End diff --
Due to Vectorized type unrecognizable in normal execution node, the
TupleDesc structure should backport metadata to normal type before we do V->N
result pop up. At present, we only support scan node vectorized execution, so
we force this backport function invoked. In the future, we will check if its
parent node is "N" type. I will comment the function
---
