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Phase 3 of read-only-plans project: ExecInitExpr now builds expression

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execution state trees, and ExecEvalExpr takes an expression state tree
not an expression plan tree.  The plan tree is now read-only as far as
the executor is concerned.  Next step is to begin actually exploiting
this property.
This commit is contained in:
Tom Lane
2002-12-13 19:46:01 +00:00
parent 77b7a740f9
commit 3a4f7dde16
49 changed files with 993 additions and 815 deletions
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5
src/backend/utils/cache/Makefile vendored
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@ -4,7 +4,7 @@
# Makefile for utils/cache
#
# IDENTIFICATION
# $Header: /cvsroot/pgsql/src/backend/utils/cache/Makefile,v 1.16 2002/03/31 06:26:31 tgl Exp $
# $Header: /cvsroot/pgsql/src/backend/utils/cache/Makefile,v 1.17 2002/12/13 19:45:56 tgl Exp $
#
#-------------------------------------------------------------------------
@ -12,8 +12,7 @@ subdir = src/backend/utils/cache
top_builddir = ../../../..
include $(top_builddir)/src/Makefile.global
OBJS = catcache.o inval.o relcache.o syscache.o lsyscache.o \
fcache.o
OBJS = catcache.o inval.o relcache.o syscache.o lsyscache.o
all: SUBSYS.o

53
src/backend/utils/cache/fcache.c vendored
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@ -1,53 +0,0 @@
/*-------------------------------------------------------------------------
*
* fcache.c
* Code for the 'function cache' used in Oper and Func nodes.
*
*
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/cache/Attic/fcache.c,v 1.45 2002/06/20 20:29:39 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "miscadmin.h"
#include "utils/acl.h"
#include "utils/fcache.h"
#include "utils/lsyscache.h"
/*
* Build a 'FunctionCache' struct given the PG_PROC oid.
*/
FunctionCachePtr
init_fcache(Oid foid, int nargs, MemoryContext fcacheCxt)
{
FunctionCachePtr retval;
AclResult aclresult;
/* Check permission to call function */
aclresult = pg_proc_aclcheck(foid, GetUserId(), ACL_EXECUTE);
if (aclresult != ACLCHECK_OK)
aclcheck_error(aclresult, get_func_name(foid));
/* Safety check (should never fail, as parser should check sooner) */
if (nargs > FUNC_MAX_ARGS)
elog(ERROR, "init_fcache: too many arguments");
/* Create fcache entry in the desired context */
retval = (FunctionCachePtr) MemoryContextAlloc(fcacheCxt,
sizeof(FunctionCache));
MemSet(retval, 0, sizeof(FunctionCache));
/* Set up the primary fmgr lookup information */
fmgr_info_cxt(foid, &(retval->func), fcacheCxt);
/* Initialize additional info */
retval->setArgsValid = false;
return retval;
}