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Replace inefficient _bt_invokestrat calls with direct calls to the

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appropriate btree three-way comparison routine.  Not clear why the
three-way comparison routines were being used in some paths and not
others in btree --- incomplete changes by someone long ago, maybe?
Anyway, this makes for a nice speedup in CREATE INDEX.
This commit is contained in:
Tom Lane
2000-02-18 06:32:39 +00:00
parent 49353692d1
commit 8cb624262a
7 changed files with 272 additions and 294 deletions
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17
src/include/access/nbtree.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: nbtree.h,v 1.33 2000/01/26 05:57:50 momjian Exp $
* $Id: nbtree.h,v 1.34 2000/02/18 06:32:28 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -204,11 +204,11 @@ typedef struct BTPageState
* prototypes for functions in nbtinsert.c
*/
extern InsertIndexResult _bt_doinsert(Relation rel, BTItem btitem,
bool index_is_unique, Relation heapRel);
/* default is to allow duplicates */
extern bool _bt_itemcmp(Relation rel, Size keysz, BTItem item1, BTItem item2,
StrategyNumber strat);
bool index_is_unique, Relation heapRel);
extern int32 _bt_tuplecompare(Relation rel, Size keysz, ScanKey scankey,
IndexTuple tuple1, IndexTuple tuple2);
extern bool _bt_itemcmp(Relation rel, Size keysz, ScanKey scankey,
BTItem item1, BTItem item2, StrategyNumber strat);
/*
* prototypes for functions in nbtpage.c
@@ -272,14 +272,13 @@ extern bool _bt_step(IndexScanDesc scan, Buffer *bufP, ScanDirection dir);
* prototypes for functions in nbtstrat.c
*/
extern StrategyNumber _bt_getstrat(Relation rel, AttrNumber attno,
RegProcedure proc);
extern bool _bt_invokestrat(Relation rel, AttrNumber attno,
StrategyNumber strat, Datum left, Datum right);
RegProcedure proc);
/*
* prototypes for functions in nbtutils.c
*/
extern ScanKey _bt_mkscankey(Relation rel, IndexTuple itup);
extern ScanKey _bt_mkscankey_nodata(Relation rel);
extern void _bt_freeskey(ScanKey skey);
extern void _bt_freestack(BTStack stack);
extern void _bt_orderkeys(Relation relation, BTScanOpaque so);