diff options
Diffstat (limited to 'src/backend/executor/nodeWorktablescan.c')
| -rw-r--r-- | src/backend/executor/nodeWorktablescan.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/backend/executor/nodeWorktablescan.c b/src/backend/executor/nodeWorktablescan.c index aaac9d19a8c..24fd2c5f736 100644 --- a/src/backend/executor/nodeWorktablescan.c +++ b/src/backend/executor/nodeWorktablescan.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/executor/nodeWorktablescan.c,v 1.5 2009/01/01 17:23:42 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/executor/nodeWorktablescan.c,v 1.6 2009/03/27 18:30:21 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -43,6 +43,10 @@ WorkTableScanNext(WorkTableScanState *node) * worktable plan node, since it cannot appear high enough in the plan * tree of a scrollable cursor to be exposed to a backward-scan * requirement. So it's not worth expending effort to support it. + * + * Note: we are also assuming that this node is the only reader of the + * worktable. Therefore, we don't need a private read pointer for the + * tuplestore, nor do we need to tell tuplestore_gettupleslot to copy. */ estate = node->ss.ps.state; Assert(ScanDirectionIsForward(estate->es_direction)); @@ -53,7 +57,7 @@ WorkTableScanNext(WorkTableScanState *node) * Get the next tuple from tuplestore. Return NULL if no more tuples. */ slot = node->ss.ss_ScanTupleSlot; - (void) tuplestore_gettupleslot(tuplestorestate, true, slot); + (void) tuplestore_gettupleslot(tuplestorestate, true, false, slot); return slot; } |