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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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28
src/backend/access/heap/heapam.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/heap/heapam.c,v 1.30 1998/07/20 16:56:53 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/access/heap/heapam.c,v 1.31 1998/07/27 19:37:36 vadim Exp $
*
*
* INTERFACE ROUTINES
@ -209,7 +209,7 @@ heapgettup(Relation relation,
ItemPointer tid,
int dir,
Buffer *b,
bool seeself,
Snapshot snapshot,
int nkeys,
ScanKey key)
{
@ -250,9 +250,9 @@ heapgettup(Relation relation,
}
elog(DEBUG, "heapgettup(..., b=0x%x, nkeys=%d, key=0x%x", b, nkeys, key);
elog(DEBUG, "heapgettup: relation(%c)=`%s', %s",
elog(DEBUG, "heapgettup: relation(%c)=`%s', %p",
relation->rd_rel->relkind, &relation->rd_rel->relname,
(seeself == true) ? "SeeSelf" : "NoSeeSelf");
snapshot);
#endif /* !defined(HEAPDEBUGALL) */
if (!ItemPointerIsValid(tid))
@ -402,7 +402,7 @@ heapgettup(Relation relation,
* ----------------
*/
HeapTupleSatisfies(lpp, relation, *b, (PageHeader) dp,
seeself, nkeys, key, rtup);
snapshot, nkeys, key, rtup);
if (rtup != NULL)
{
ItemPointer iptr = &(rtup->t_ctid);
@ -580,7 +580,7 @@ heap_close(Relation relation)
HeapScanDesc
heap_beginscan(Relation relation,
int atend,
bool seeself,
Snapshot snapshot,
unsigned nkeys,
ScanKey key)
{
@ -608,7 +608,7 @@ heap_beginscan(Relation relation,
/* XXX someday assert SelfTimeQual if relkind == RELKIND_UNCATALOGED */
if (relation->rd_rel->relkind == RELKIND_UNCATALOGED)
seeself = true;
snapshot = SnapshotSelf;
/* ----------------
* increment relation ref count while scanning relation
@ -639,7 +639,7 @@ heap_beginscan(Relation relation,
initsdesc(sdesc, relation, atend, nkeys, key);
sdesc->rs_atend = atend;
sdesc->rs_seeself = seeself;
sdesc->rs_snapshot = snapshot;
sdesc->rs_nkeys = (short) nkeys;
return (sdesc);
@ -856,7 +856,7 @@ heap_getnext(HeapScanDesc scandesc,
iptr,
-1,
&(sdesc->rs_cbuf),
sdesc->rs_seeself,
sdesc->rs_snapshot,
sdesc->rs_nkeys,
sdesc->rs_key);
}
@ -943,7 +943,7 @@ heap_getnext(HeapScanDesc scandesc,
iptr,
1,
&sdesc->rs_cbuf,
sdesc->rs_seeself,
sdesc->rs_snapshot,
sdesc->rs_nkeys,
sdesc->rs_key);
}
@ -988,7 +988,7 @@ heap_getnext(HeapScanDesc scandesc,
*/
HeapTuple
heap_fetch(Relation relation,
bool seeself,
Snapshot snapshot,
ItemPointer tid,
Buffer *b)
{
@ -1050,7 +1050,7 @@ heap_fetch(Relation relation,
*/
HeapTupleSatisfies(lp, relation, buffer, dp,
seeself, 0, (ScanKey) NULL, tuple);
snapshot, 0, (ScanKey) NULL, tuple);
if (tuple == NULL)
{
@ -1447,7 +1447,7 @@ heap_markpos(HeapScanDesc sdesc)
(ItemPointer) NULL : &sdesc->rs_ctup->t_ctid,
-1,
&sdesc->rs_pbuf,
sdesc->rs_seeself,
sdesc->rs_snapshot,
sdesc->rs_nkeys,
sdesc->rs_key);
@ -1461,7 +1461,7 @@ heap_markpos(HeapScanDesc sdesc)
(ItemPointer) NULL : &sdesc->rs_ctup->t_ctid,
1,
&sdesc->rs_nbuf,
sdesc->rs_seeself,
sdesc->rs_snapshot,
sdesc->rs_nkeys,
sdesc->rs_key);
}