Commebts & one check in EndEvalPlanQual().

diff --git a/src/backend/executor/execMain.c b/src/backend/executor/execMain.c
index d19baaa84dc93814f4ccff87398eaad3de6afdff..bbcba0fbc12c7db2f78001d2082856ab5db4e2aa 100644 (file)
--- a/src/backend/executor/execMain.c
+++ b/src/backend/executor/execMain.c
@@ -27,7 +27,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/executor/execMain.c,v 1.111 2000/04/07 00:59:17 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/executor/execMain.c,v 1.112 2000/04/07 07:24:47 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -2022,15 +2022,21 @@ EndEvalPlanQual(EState *estate)
        EState     *epqstate = &(epq->estate);
        evalPlanQual *oldepq;
 
-       if (epq->rti == 0)                      /* still live? */
+       if (epq->rti == 0)                      /* plans already shutdowned */
+       {
+               Assert(epq->estate.es_evalPlanQual == NULL);
                return;
+       }
 
        for (;;)
        {
                ExecEndNode(epq->plan, epq->plan);
            epqstate->es_tupleTable->next = 0;
-               heap_freetuple(epqstate->es_evTuple[epq->rti - 1]);
-               epqstate->es_evTuple[epq->rti - 1] = NULL;
+               if (epqstate->es_evTuple[epq->rti - 1] != NULL)
+               {
+                       heap_freetuple(epqstate->es_evTuple[epq->rti - 1]);
+                       epqstate->es_evTuple[epq->rti - 1] = NULL;
+               }
                /* pop old PQ from the stack */
                oldepq = (evalPlanQual *) epqstate->es_evalPlanQual;
                if (oldepq == (evalPlanQual *) NULL)