diff options
Diffstat (limited to 'src/backend/executor/nodeLimit.c')
| -rw-r--r-- | src/backend/executor/nodeLimit.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/src/backend/executor/nodeLimit.c b/src/backend/executor/nodeLimit.c index da0e6697763..1ce376418d5 100644 --- a/src/backend/executor/nodeLimit.c +++ b/src/backend/executor/nodeLimit.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/executor/nodeLimit.c,v 1.7 2001/08/06 18:05:07 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/executor/nodeLimit.c,v 1.8 2001/10/25 05:49:29 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -66,7 +66,6 @@ ExecLimit(Limit *node) */ for (;;) { - /* * If we have reached the subplan EOF or the limit, just quit. * @@ -76,11 +75,11 @@ ExecLimit(Limit *node) * here is for position > netlimit not position >= netlimit. * * Similarly, when scanning backwards, we must re-fetch the last - * tuple in the offset region before we can return NULL. - * Otherwise we won't be correctly aligned to start going forward - * again. So, although you might think we can quit when position - * equals offset + 1, we have to fetch a subplan tuple first, and - * then exit when position = offset. + * tuple in the offset region before we can return NULL. Otherwise + * we won't be correctly aligned to start going forward again. + * So, although you might think we can quit when position equals + * offset + 1, we have to fetch a subplan tuple first, and then + * exit when position = offset. */ if (ScanDirectionIsForward(direction)) { @@ -101,7 +100,6 @@ ExecLimit(Limit *node) slot = ExecProcNode(outerPlan, (Plan *) node); if (TupIsNull(slot)) { - /* * We are at start or end of the subplan. Update local state * appropriately, but always return NULL. @@ -269,8 +267,8 @@ int ExecCountSlotsLimit(Limit *node) { return ExecCountSlotsNode(outerPlan(node)) + - ExecCountSlotsNode(innerPlan(node)) + - LIMIT_NSLOTS; + ExecCountSlotsNode(innerPlan(node)) + + LIMIT_NSLOTS; } /* ---------------------------------------------------------------- |