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Rearrange fmgr.c and relcache so that it's possible to keep FmgrInfo

lookup info in the relcache for index access method support functions.
This makes a huge difference for dynamically loaded support functions,
and should save a few cycles even for built-in ones.  Also tweak dfmgr.c
so that load_external_function is called only once, not twice, when
doing fmgr_info for a dynamically loaded function.  All per performance
gripe from Teodor Sigaev, 5-Oct-01.
This commit is contained in:
Tom Lane
2001-10-06 23:21:45 +00:00
parent a965750abf
commit 85801a4dbd
31 changed files with 424 additions and 390 deletions

View File

@ -9,7 +9,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/varbit.c,v 1.18 2001/05/22 16:37:16 petere Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/varbit.c,v 1.19 2001/10/06 23:21:44 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -19,6 +19,7 @@
#include "catalog/pg_type.h"
#include "utils/array.h"
#include "utils/fmgroids.h"
#include "utils/memutils.h"
#include "utils/varbit.h"
#define HEXDIG(z) ((z)<10 ? ((z)+'0') : ((z)-10+'A'))
@ -238,7 +239,7 @@ _bit(PG_FUNCTION_ARGS)
static FmgrInfo bit_finfo;
if (bit_finfo.fn_oid == InvalidOid)
fmgr_info(F_BIT, &bit_finfo);
fmgr_info_cxt(F_BIT, &bit_finfo, TopMemoryContext);
MemSet(&locfcinfo, 0, sizeof(locfcinfo));
locfcinfo.flinfo = &bit_finfo;
@ -452,7 +453,7 @@ _varbit(PG_FUNCTION_ARGS)
static FmgrInfo varbit_finfo;
if (varbit_finfo.fn_oid == InvalidOid)
fmgr_info(F_VARBIT, &varbit_finfo);
fmgr_info_cxt(F_VARBIT, &varbit_finfo, TopMemoryContext);
MemSet(&locfcinfo, 0, sizeof(locfcinfo));
locfcinfo.flinfo = &varbit_finfo;