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heap_fetch requires buffer pointer, must be released; heap_getnext

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no longer returns buffer pointer, can be gotten from scan;
	descriptor; bootstrap can create multi-key indexes;
pg_procname index now is multi-key index; oidint2, oidint4, oidname
are gone (must be removed from regression tests); use System Cache
rather than sequential scan in many places; heap_modifytuple no
longer takes buffer parameter; remove unused buffer parameter in
a few other functions; oid8 is not index-able; remove some use of
single-character variable names; cleanup Buffer variables usage
and scan descriptor looping; cleaned up allocation and freeing of
tuples; 18k lines of diff;
This commit is contained in:
Bruce Momjian
1998-08-19 02:04:17 +00:00
parent 31de2c9461
commit 7971539020
123 changed files with 2139 additions and 3134 deletions
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29
src/backend/utils/adt/selfuncs.c
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@ -12,7 +12,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/selfuncs.c,v 1.20 1998/07/27 19:38:20 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/selfuncs.c,v 1.21 1998/08/19 02:03:05 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -295,7 +295,8 @@ getattdisbursion(Oid relid, AttrNumber attnum)
if (nvals > 0)
return (nvals);
atp = SearchSysCacheTuple(RELOID, ObjectIdGetDatum(relid),
atp = SearchSysCacheTuple(RELOID,
ObjectIdGetDatum(relid),
0, 0, 0);
/*
@ -334,8 +335,8 @@ gethilokey(Oid relid,
char **high,
char **low)
{
Relation rdesc;
HeapScanDesc sdesc;
Relation rel;
HeapScanDesc scan;
static ScanKeyData key[3] = {
{0, Anum_pg_statistic_starelid, F_OIDEQ, {0, 0, F_OIDEQ}},
{0, Anum_pg_statistic_staattnum, F_INT2EQ, {0, 0, F_INT2EQ}},
@ -344,13 +345,13 @@ gethilokey(Oid relid,
bool isnull;
HeapTuple tuple;
rdesc = heap_openr(StatisticRelationName);
rel = heap_openr(StatisticRelationName);
key[0].sk_argument = ObjectIdGetDatum(relid);
key[1].sk_argument = Int16GetDatum((int16) attnum);
key[2].sk_argument = ObjectIdGetDatum(opid);
sdesc = heap_beginscan(rdesc, 0, SnapshotNow, 3, key);
tuple = heap_getnext(sdesc, 0, (Buffer *) NULL);
scan = heap_beginscan(rel, 0, SnapshotNow, 3, key);
tuple = heap_getnext(scan, 0);
if (!HeapTupleIsValid(tuple))
{
*high = "n";
@ -365,19 +366,19 @@ gethilokey(Oid relid,
*high = textout((struct varlena *)
heap_getattr(tuple,
Anum_pg_statistic_stahikey,
RelationGetTupleDescriptor(rdesc),
RelationGetTupleDescriptor(rel),
&isnull));
if (isnull)
elog(DEBUG, "gethilokey: high key is null");
*low = textout((struct varlena *)
heap_getattr(tuple,
Anum_pg_statistic_stalokey,
RelationGetTupleDescriptor(rdesc),
RelationGetTupleDescriptor(rel),
&isnull));
if (isnull)
elog(DEBUG, "gethilokey: low key is null");
heap_endscan(sdesc);
heap_close(rdesc);
heap_endscan(scan);
heap_close(rel);
}
float64
@ -497,7 +498,8 @@ hashsel(Oid operatorObjectId,
* have selectivity functions
*/
atp = SearchSysCacheTuple(RELOID, ObjectIdGetDatum(indexrelid),
atp = SearchSysCacheTuple(RELOID,
ObjectIdGetDatum(indexrelid),
0, 0, 0);
if (!HeapTupleIsValid(atp))
{
@ -549,7 +551,8 @@ hashnpage(Oid operatorObjectId,
int npage;
int ntuples;
atp = SearchSysCacheTuple(RELOID, ObjectIdGetDatum(indexrelid),
atp = SearchSysCacheTuple(RELOID,
ObjectIdGetDatum(indexrelid),
0, 0, 0);
if (!HeapTupleIsValid(atp))
{