Re: [HACKERS] Unexpected subselect result. - Mailing list pgsql-hackers

Sorry, I decided to copy subselect' tuple unconditionally...

Vadim
*** nodeSubplan.c.orig    Thu Feb 19 08:54:19 1998
--- nodeSubplan.c    Thu Feb 19 09:51:53 1998
***************
*** 193,198 ****
--- 193,207 ----
              break;
          }

+         /*
+          * If this is uncorrelated subquery then its plan will be closed
+          * (see below) and this tuple will be free-ed - bad for not byval
+          * types... But is free-ing possible in the next ExecProcNode in
+          * this loop ? Who knows... Someday we'll keep track of saved
+          * tuples...
+          */
+         tup = heap_copytuple (tup);
+
          foreach (lst, node->setParam)
          {
              ParamExecData   *prm = &(plan->state->es_param_exec_vals[lfirsti(lst)]);