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Install infrastructure for shared-memory free space map. Doesn't actually

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do anything yet, but it has the necessary connections to initialization
and so forth.  Make some gestures towards allowing number of blocks in
a relation to be BlockNumber, ie, unsigned int, rather than signed int.
(I doubt I got all the places that are sloppy about it, yet.)  On the
way, replace the hardwired NLOCKS_PER_XACT fudge factor with a GUC
variable.
This commit is contained in:
Tom Lane
2001-06-27 23:31:40 +00:00
parent b559382134
commit e0c9301c87
26 changed files with 572 additions and 316 deletions
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4
src/backend/access/heap/hio.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Id: hio.c,v 1.39 2001/05/16 22:35:12 tgl Exp $
* $Id: hio.c,v 1.40 2001/06/27 23:31:38 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -147,7 +147,7 @@ RelationGetBufferForTuple(Relation relation, Size len,
*/
relation->rd_nblocks = RelationGetNumberOfBlocks(relation);
if ((BlockNumber) relation->rd_nblocks > oldnblocks)
if (relation->rd_nblocks > oldnblocks)
{
/*
* Someone else has indeed extended the relation recently.