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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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13
src/backend/catalog/index.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/catalog/index.c,v 1.154 2001/06/12 05:55:49 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/catalog/index.c,v 1.155 2001/06/27 23:31:38 tgl Exp $
*
*
* INTERFACE ROUTINES
@@ -1456,7 +1456,7 @@ UpdateStats(Oid relid, double reltuples)
Relation pg_class;
HeapTuple tuple;
HeapTuple newtup;
long relpages;
BlockNumber relpages;
int i;
Form_pg_class rd_rel;
Relation idescs[Num_pg_class_indices];
@@ -1558,7 +1558,7 @@ UpdateStats(Oid relid, double reltuples)
reltuples = 1000;
}
else
reltuples = relpages * NTUPLES_PER_PAGE(whichRel->rd_rel->relnatts);
reltuples = (double) relpages * NTUPLES_PER_PAGE(whichRel->rd_rel->relnatts);
}
/*
@@ -1566,7 +1566,7 @@ UpdateStats(Oid relid, double reltuples)
* place with the new values so that the cache contains the latest
* copy.
*/
whichRel->rd_rel->relpages = relpages;
whichRel->rd_rel->relpages = (int32) relpages;
whichRel->rd_rel->reltuples = reltuples;
/*
@@ -1581,7 +1581,7 @@ UpdateStats(Oid relid, double reltuples)
*/
rd_rel = (Form_pg_class) GETSTRUCT(tuple);
LockBuffer(pg_class_scan->rs_cbuf, BUFFER_LOCK_EXCLUSIVE);
rd_rel->relpages = relpages;
rd_rel->relpages = (int32) relpages;
rd_rel->reltuples = reltuples;
LockBuffer(pg_class_scan->rs_cbuf, BUFFER_LOCK_UNLOCK);
WriteNoReleaseBuffer(pg_class_scan->rs_cbuf);
@@ -1600,7 +1600,7 @@ UpdateStats(Oid relid, double reltuples)
}
replace[Anum_pg_class_relpages - 1] = 'r';
values[Anum_pg_class_relpages - 1] = Int32GetDatum(relpages);
values[Anum_pg_class_relpages - 1] = Int32GetDatum((int32) relpages);
replace[Anum_pg_class_reltuples - 1] = 'r';
values[Anum_pg_class_reltuples - 1] = Float4GetDatum((float4) reltuples);
newtup = heap_modifytuple(tuple, pg_class, values, nulls, replace);
@@ -1962,6 +1962,7 @@ reindex_index(Oid indexId, bool force, bool inplace)
/* Now truncate the actual data and set blocks to zero */
smgrtruncate(DEFAULT_SMGR, iRel, 0);
iRel->rd_nblocks = 0;
iRel->rd_targblock = InvalidBlockNumber;
}
/* Initialize the index and rebuild */