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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2006-06-27 02:51:40 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2006-06-27 02:51:40 +0000 |
| commit | 3f50ba27cf417eb57fd310c2a88f76a6ea6b966e (patch) | |
| tree | e9dec4aaac793ed8efab65488e62532057f91704 /src/backend/executor/nodeFunctionscan.c | |
| parent | fe491fb9afd07f3cc9b8aabb17f43049b79258a9 (diff) | |
| download | postgresql-3f50ba27cf417eb57fd310c2a88f76a6ea6b966e.tar.gz postgresql-3f50ba27cf417eb57fd310c2a88f76a6ea6b966e.zip | |
Create infrastructure for 'MinimalTuple' representation of in-memory
tuples with less header overhead than a regular HeapTuple, per my
recent proposal. Teach TupleTableSlot code how to deal with these.
As proof of concept, change tuplestore.c to store MinimalTuples instead
of HeapTuples. Future patches will expand the concept to other places
where it is useful.
Diffstat (limited to 'src/backend/executor/nodeFunctionscan.c')
| -rw-r--r-- | src/backend/executor/nodeFunctionscan.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/src/backend/executor/nodeFunctionscan.c b/src/backend/executor/nodeFunctionscan.c index 0c77e821690..90ab0188743 100644 --- a/src/backend/executor/nodeFunctionscan.c +++ b/src/backend/executor/nodeFunctionscan.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/executor/nodeFunctionscan.c,v 1.39 2006/06/16 18:42:22 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/executor/nodeFunctionscan.c,v 1.40 2006/06/27 02:51:39 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -48,8 +48,6 @@ FunctionNext(FunctionScanState *node) EState *estate; ScanDirection direction; Tuplestorestate *tuplestorestate; - bool should_free; - HeapTuple heapTuple; /* * get information from the estate and scan state @@ -86,14 +84,11 @@ FunctionNext(FunctionScanState *node) /* * Get the next tuple from tuplestore. Return NULL if no more tuples. */ - heapTuple = tuplestore_getheaptuple(tuplestorestate, - ScanDirectionIsForward(direction), - &should_free); slot = node->ss.ss_ScanTupleSlot; - if (heapTuple) - return ExecStoreTuple(heapTuple, slot, InvalidBuffer, should_free); - else - return ExecClearTuple(slot); + (void) tuplestore_gettupleslot(tuplestorestate, + ScanDirectionIsForward(direction), + slot); + return slot; } /* ---------------------------------------------------------------- |