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Use Snapshot in heap access methods.

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This commit is contained in:
Vadim B. Mikheev
1998-07-27 19:38:40 +00:00
parent f7f989c990
commit be8300b18f
54 changed files with 352 additions and 339 deletions
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7
src/include/access/heapam.h
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@@ -6,7 +6,7 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: heapam.h,v 1.33 1998/06/15 18:39:53 momjian Exp $
* $Id: heapam.h,v 1.34 1998/07/27 19:38:29 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@@ -18,6 +18,7 @@
#include <access/relscan.h>
#include <storage/block.h>
#include <utils/rel.h>
#include <utils/tqual.h>
/* ----------------------------------------------------------------
* heap access method statistics
@@ -247,11 +248,11 @@ extern Relation heap_openr(char *relationName);
extern void heap_close(Relation relation);
extern HeapScanDesc
heap_beginscan(Relation relation, int atend,
bool seeself, unsigned nkeys, ScanKey key);
Snapshot snapshot, unsigned nkeys, ScanKey key);
extern void heap_rescan(HeapScanDesc sdesc, bool scanFromEnd, ScanKey key);
extern void heap_endscan(HeapScanDesc sdesc);
extern HeapTuple heap_getnext(HeapScanDesc scandesc, int backw, Buffer *b);
extern HeapTuple heap_fetch(Relation relation, bool seeself, ItemPointer tid, Buffer *b);
extern HeapTuple heap_fetch(Relation relation, Snapshot snapshot, ItemPointer tid, Buffer *b);
extern Oid heap_insert(Relation relation, HeapTuple tup);
extern int heap_delete(Relation relation, ItemPointer tid);
extern int