This patch should fix it ...
regards, tom lane
Index: postgres.c
===================================================================
RCS file: /cvsroot/pgsql/src/backend/tcop/postgres.c,v
retrieving revision 1.544
diff -c -r1.544 postgres.c
*** postgres.c 10 Mar 2008 12:55:13 -0000 1.544
--- postgres.c 12 Mar 2008 23:42:32 -0000
***************
*** 730,760 ****
pg_plan_queries(List *querytrees, int cursorOptions, ParamListInfo
boundParams,
bool needSnapshot)
{
! List *stmt_list = NIL;
! ListCell *query_list;
! foreach(query_list, querytrees)
{
! Query *query = (Query *) lfirst(query_list);
! Node *stmt;
! if (query->commandType == CMD_UTILITY)
{
! /* Utility commands have no plans. */
! stmt = query->utilityStmt;
! }
! else
! {
! if (needSnapshot)
{
! ActiveSnapshot =
CopySnapshot(GetTransactionSnapshot());
! needSnapshot = false;
}
! stmt = (Node *) pg_plan_query(query, cursorOptions,
boundParams);
}
! stmt_list = lappend(stmt_list, stmt);
}
return stmt_list;
}
--- 730,778 ----
pg_plan_queries(List *querytrees, int cursorOptions, ParamListInfo
boundParams,
bool needSnapshot)
{
! List * volatile stmt_list = NIL;
! Snapshot saveActiveSnapshot = ActiveSnapshot;
! /* PG_TRY to ensure previous ActiveSnapshot is restored on error */
! PG_TRY();
{
! Snapshot mySnapshot = NULL;
! ListCell *query_list;
! foreach(query_list, querytrees)
{
! Query *query = (Query *) lfirst(query_list);
! Node *stmt;
!
! if (query->commandType == CMD_UTILITY)
! {
! /* Utility commands have no plans. */
! stmt = query->utilityStmt;
! }
! else
{
! if (needSnapshot && mySnapshot == NULL)
! {
! mySnapshot =
CopySnapshot(GetTransactionSnapshot());
! ActiveSnapshot = mySnapshot;
! }
! stmt = (Node *) pg_plan_query(query,
cursorOptions,
!
boundParams);
}
!
! stmt_list = lappend(stmt_list, stmt);
}
! if (mySnapshot)
! FreeSnapshot(mySnapshot);
! }
! PG_CATCH();
! {
! ActiveSnapshot = saveActiveSnapshot;
! PG_RE_THROW();
}
+ PG_END_TRY();
+ ActiveSnapshot = saveActiveSnapshot;
return stmt_list;
}
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