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Initial MVCC code.

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New code for locking buffer' context.
This commit is contained in:
Vadim B. Mikheev
1998-12-15 12:47:01 +00:00
parent c5a27161a1
commit 3f7fbf85dc
65 changed files with 1391 additions and 1282 deletions
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12
src/backend/commands/vacuum.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/vacuum.c,v 1.91 1998/11/27 19:51:58 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/vacuum.c,v 1.92 1998/12/15 12:46:01 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@@ -497,7 +497,7 @@ vc_vacone(Oid relid, bool analyze, List *va_cols)
}
/* we require the relation to be locked until the indices are cleaned */
RelationSetLockForWrite(onerel);
LockRelation(onerel, AccessExclusiveLock);
/* scan it */
vacuum_pages.vpl_num_pages = fraged_pages.vpl_num_pages = 0;
@@ -1918,7 +1918,7 @@ vc_delhilowstats(Oid relid, int attcnt, int *attnums)
if (i >= attcnt)
continue; /* don't delete it */
}
heap_delete(pgstatistic, &tuple->t_self);
heap_delete(pgstatistic, &tuple->t_self, NULL);
}
heap_endscan(scan);
@@ -1928,11 +1928,7 @@ vc_delhilowstats(Oid relid, int attcnt, int *attnums)
static void
vc_setpagelock(Relation rel, BlockNumber blkno)
{
ItemPointerData itm;
ItemPointerSet(&itm, blkno, 1);
RelationSetLockForWritePage(rel, &itm);
LockPage(rel, blkno, ExclusiveLock);
}
/*