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| author | Hiroshi Inoue <inoue@tpf.co.jp> | 2000-02-09 03:49:47 +0000 |
|---|---|---|
| committer | Hiroshi Inoue <inoue@tpf.co.jp> | 2000-02-09 03:49:47 +0000 |
| commit | 3dec14197bba4013e8688dfeea452388a9846587 (patch) | |
| tree | a449c45b7617ac22ef5b635188a0f0882056a2dc /src | |
| parent | 9e3488356559abb8efbfb57044a28a07ec728d5f (diff) | |
| download | postgresql-3dec14197bba4013e8688dfeea452388a9846587.tar.gz postgresql-3dec14197bba4013e8688dfeea452388a9846587.zip | |
Enable backward sequential scan even after reaching EOF.
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/access/heap/heapam.c | 22 |
1 files changed, 1 insertions, 21 deletions
diff --git a/src/backend/access/heap/heapam.c b/src/backend/access/heap/heapam.c index cc503c32511..d51705fa472 100644 --- a/src/backend/access/heap/heapam.c +++ b/src/backend/access/heap/heapam.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/access/heap/heapam.c,v 1.65 2000/01/26 05:55:56 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/access/heap/heapam.c,v 1.66 2000/02/09 03:49:47 inoue Exp $ * * * INTERFACE ROUTINES @@ -848,11 +848,6 @@ heap_getnext(HeapScanDesc scandesc, int backw) if (scan->rs_ptup.t_data == scan->rs_ctup.t_data && BufferIsInvalid(scan->rs_pbuf)) { - if (BufferIsValid(scan->rs_nbuf)) - ReleaseBuffer(scan->rs_nbuf); - scan->rs_ntup.t_datamcxt = NULL; - scan->rs_ntup.t_data = NULL; - scan->rs_nbuf = UnknownBuffer; return NULL; } @@ -910,11 +905,6 @@ heap_getnext(HeapScanDesc scandesc, int backw) scan->rs_ptup.t_datamcxt = NULL; scan->rs_ptup.t_data = NULL; scan->rs_pbuf = InvalidBuffer; - if (BufferIsValid(scan->rs_nbuf)) - ReleaseBuffer(scan->rs_nbuf); - scan->rs_ntup.t_datamcxt = NULL; - scan->rs_ntup.t_data = NULL; - scan->rs_nbuf = InvalidBuffer; return NULL; } @@ -934,11 +924,6 @@ heap_getnext(HeapScanDesc scandesc, int backw) if (scan->rs_ctup.t_data == scan->rs_ntup.t_data && BufferIsInvalid(scan->rs_nbuf)) { - if (BufferIsValid(scan->rs_pbuf)) - ReleaseBuffer(scan->rs_pbuf); - scan->rs_ptup.t_datamcxt = NULL; - scan->rs_ptup.t_data = NULL; - scan->rs_pbuf = UnknownBuffer; HEAPDEBUG_3; /* heap_getnext returns NULL at end */ return NULL; } @@ -998,11 +983,6 @@ heap_getnext(HeapScanDesc scandesc, int backw) scan->rs_ntup.t_datamcxt = NULL; scan->rs_ntup.t_data = NULL; scan->rs_nbuf = InvalidBuffer; - if (BufferIsValid(scan->rs_pbuf)) - ReleaseBuffer(scan->rs_pbuf); - scan->rs_ptup.t_datamcxt = NULL; - scan->rs_ptup.t_data = NULL; - scan->rs_pbuf = InvalidBuffer; HEAPDEBUG_6; /* heap_getnext returning EOS */ return NULL; } |