mirror of
https://github.com/postgres/postgres.git
synced 2025-07-30 11:03:19 +03:00
From: Massimo Dal Zotto <dz@cs.unitn.it>
Here is a tar file the new directories, which substitute the old ones in contrib. Please remove the old directories array, datetime, miscutil, string and userlock before unpacking the tar file in contrib. Note that as the modules are now installed in lib/modules I install all my sql code in lib/sql. In my opinion also the other contributors should follow these rules.
This commit is contained in:
Marc G. Fournier
@ -1,7 +1,8 @@
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#-------------------------------------------------------------------------
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#
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# Makefile--
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# Makefile for array iterator functions.
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# Makefile --
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#
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# Makefile for the misc_util module.
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#
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#-------------------------------------------------------------------------
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@ -15,36 +16,35 @@ INCLUDE_OPT = -I ./ \
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-I $(SRCDIR)/include \
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-I $(SRCDIR)/port/$(PORTNAME)
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CFLAGS += $(INCLUDE_OPT)
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ifeq ($(PORTNAME), linux)
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ifdef LINUX_ELF
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ifeq ($(CC), gcc)
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CFLAGS += -fPIC
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endif
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endif
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endif
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ifeq ($(PORTNAME), i386_solaris)
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CFLAGS+= -fPIC
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endif
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CFLAGS += $(INCLUDE_OPT) $(CFLAGS_SL)
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MODNAME = misc_utils
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MODULE = $(MODNAME)$(DLSUFFIX)
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MODDIR = $(LIBDIR)/modules
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SQLDIR = $(LIBDIR)/sql
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all: module sql
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module: $(MODULE)
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sql: $(MODNAME).sql
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install: $(MODULE)
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cp -p $(MODULE) $(LIBDIR)/modules
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cd $(LIBDIR)/modules; strip $(MODULE)
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install: $(MODULE) $(MODDIR) $(SQLDIR)
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cp -p $(MODULE) $(MODDIR)/
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strip $(MODDIR)/$(MODULE)
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cp -p $(MODNAME).sql $(SQLDIR)/
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$(MODDIR):
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mkdir -p $@
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$(SQLDIR):
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mkdir -p $@
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%.sql: %.sql.in
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sed "s|MODULE_PATHNAME|$(LIBDIR)/modules/$(MODULE)|" < $< > $@
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sed "s|MODULE_PATHNAME|$(MODDIR)/$(MODULE)|" < $< > $@
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.SUFFIXES: $(DLSUFFIX)
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@ -55,7 +55,7 @@ depend dep:
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$(CC) -MM $(INCLUDE_OPT) *.c >depend
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clean:
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rm -f $(MODULE) $(MODNAME).sql assert_test.so
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rm -f *~ $(MODULE) $(MODNAME).sql
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ifeq (depend,$(wildcard depend))
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include depend
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@ -1,43 +0,0 @@
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/*
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* assert_test.c --
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*
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* This file tests Postgres assert checking.
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*
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* Copyright (c) 1996, Massimo Dal Zotto <dz@cs.unitn.it>
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*/
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#include "postgres.h"
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#include "assert_test.h"
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extern int assertTest(int val);
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extern int assertEnable(int val);
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int
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assert_enable(int val)
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{
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return assertEnable(val);
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}
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int
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assert_test(int val)
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{
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return assertTest(val);
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}
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/*
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-- Enable/disable Postgres assert checking.
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--
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create function assert_enable(int4) returns int4
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as '/usr/local/pgsql/lib/assert_test.so'
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language 'C';
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-- Test Postgres assert checking.
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--
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create function assert_test(int4) returns int4
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as '/usr/local/pgsql/lib/assert_test.so'
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language 'C';
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*/
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/* end of file */
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@ -1,7 +0,0 @@
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#ifndef ASSERT_TEST_H
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#define ASSERT_TEST_H
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int assert_enable(int val);
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int assert_test(int val);
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#endif
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@ -1,9 +1,12 @@
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/*
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* utils.c --
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* misc_utils.c --
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*
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* This file defines various Postgres utility functions.
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* This file defines miscellaneous PostgreSQL utility functions.
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*
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* Copyright (c) 1996, Massimo Dal Zotto <dz@cs.unitn.it>
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* Copyright (c) 1998, Massimo Dal Zotto <dz@cs.unitn.it>
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*
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* This file is distributed under the GNU General Public License
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* either version 2, or (at your option) any later version.
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*/
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#include <unistd.h>
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@ -12,9 +15,15 @@
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#include "utils/palloc.h"
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#include "misc_utils.h"
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#include "assert_test.h"
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extern int ExecutorLimit(int limit);
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extern void Async_Unlisten(char *relname, int pid);
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extern int assertTest(int val);
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#ifdef ASSERT_CHECKING_TEST
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extern int assertEnable(int val);
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#endif
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int
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query_limit(int limit)
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@ -47,4 +56,26 @@ min(int x, int y)
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return ((x < y) ? x : y);
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}
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int
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assert_enable(int val)
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{
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return assertEnable(val);
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}
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#ifdef ASSERT_CHECKING_TEST
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int
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assert_test(int val)
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{
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return assertTest(val);
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}
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#endif
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/* end of file */
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/*
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* Local variables:
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* tab-width: 4
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* c-indent-level: 4
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* c-basic-offset: 4
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* End:
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*/
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39
contrib/miscutil/misc_utils.doc
Normal file
39
contrib/miscutil/misc_utils.doc
Normal file
@ -0,0 +1,39 @@
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Miscellaneous utility functions for PostgreSQL.
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query_limit(n)
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sets a limit on the maximum numbers of query returned from
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a backend. It can be used to limit the result size retrieved
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by the application for poor input data or to avoid accidental
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table product while playying with sql.
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backend_pid()
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return the pid of our corresponding backend.
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unlisten(relname)
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unlisten from a relation or from all relations if the argument
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is null, empty or '*'.
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It is now obsoleted by the new unlisten command but still useful
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if you want unlisten a name computed by the query.
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Note that a listen/notify relname can be any ascii string, not
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just valid relation names.
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min(x,y)
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max(x,y)
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return the min or max bteween two integers.
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assert_enable(bool)
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enable/disable assert checkings in the backend, if it has been
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compiled with USE_ASSERT_CHECKING.
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assert_test(bool)
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test the assert enable/disable code, if the backend has been
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compiled with ASSERT_CHECKING_TEST.
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--
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Massimo Dal Zotto <dz@cs.unitn.it>
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@ -6,5 +6,17 @@ int backend_pid(void);
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int unlisten(char *relname);
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int max(int x, int y);
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int min(int x, int y);
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int assert_enable(int val);
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#ifdef ASSERT_CHECKING_TEST
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int assert_test(int val);
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#endif
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#endif
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/*
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* Local variables:
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* tab-width: 4
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* c-indent-level: 4
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* c-basic-offset: 4
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* End:
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*/
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@ -1,4 +1,35 @@
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-- SQL code to define the new array iterator functions and operators
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-- misc_utils.sql --
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--
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-- SQL code to define misc functions.
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--
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-- Copyright (c) 1998, Massimo Dal Zotto <dz@cs.unitn.it>
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--
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-- This file is distributed under the GNU General Public License
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-- either version 2, or (at your option) any later version.
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-- Set the maximum number of tuples returned by a single query.
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--
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create function query_limit(int4) returns int4
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as 'MODULE_PATHNAME'
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language 'C';
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-- Return the pid of the backend.
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--
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create function backend_pid() returns int4
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as 'MODULE_PATHNAME'
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language 'C';
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-- Unlisten from a relation.
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--
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create function "unlisten"(name) returns int4
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as 'MODULE_PATHNAME'
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language 'C';
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-- Unlisten from all relations for this backend.
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--
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create function "unlisten"() returns int4
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as 'select "unlisten"(''*'')'
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language 'sql';
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-- min(x,y)
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--
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@ -12,29 +43,16 @@ create function max(int4,int4) returns int4
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as 'MODULE_PATHNAME'
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language 'C';
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-- Set the maximum number of tuples returned by a single query
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-- Enable/disable Postgres assert checking.
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--
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create function query_limit(int4) returns int4
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as 'MODULE_PATHNAME'
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language 'C';
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create function assert_enable(int4) returns int4
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as 'MODULE_PATHNAME'
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language 'C';
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-- Return the pid of the backend
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-- Test Postgres assert checking.
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--
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create function backend_pid() returns int4
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as 'MODULE_PATHNAME'
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language 'C';
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-- Unlisten from a relation
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--
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create function unlisten(name) returns int4
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as 'MODULE_PATHNAME'
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language 'C';
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-- Unlisten from all relations for this backend
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--
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create function unlisten() returns int4
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as 'delete from pg_listener where listenerpid = backend_pid();
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select 0'
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language 'sql';
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-- create function assert_test(int4) returns int4
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-- as 'MODULE_PATHNAME'
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-- language 'C';
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-- end of file
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