postgresql

History

Tom Lane fa5c8a055a Cross-data-type comparisons are now indexable by btrees, pursuant to my pghackers proposal of 8-Nov. All the existing cross-type comparison operators (int2/int4/int8 and float4/float8) have appropriate support. The original proposal of storing the right-hand-side datatype as part of the primary key for pg_amop and pg_amproc got modified a bit in the event; it is easier to store zero as the 'default' case and only store a nonzero when the operator is actually cross-type. Along the way, remove the long-since-defunct bigbox_ops operator class.		2003-11-12 21:15:59 +00:00
..
Makefile	To fix the perpetually broken makefiles in the contrib tree, I have	2001-09-06 10:49:30 +00:00
README.misc_utils	Remove old, broken code for query_limit(), assert_enable(),	2000-11-22 19:34:49 +00:00
misc_utils.c	Cross-data-type comparisons are now indexable by btrees, pursuant to my	2003-11-12 21:15:59 +00:00
misc_utils.h	Another pgindent run. Fixes enum indenting, and improves #endif	2001-10-28 06:26:15 +00:00
misc_utils.sql.in	Backend support for autocommit removed, per recent discussions. The	2003-05-14 03:26:03 +00:00

README.misc_utils

Miscellaneous utility functions for PostgreSQL.
Copyright (C) 1999, Massimo Dal Zotto <dz@cs.unitn.it>

This software is distributed under the GNU General Public License
either version 2, or (at your option) any later version.

backend_pid()

	return the pid of our corresponding backend.

unlisten(relname)

	unlisten from a relation or from all relations if the argument
	is null, empty or '*'.
	It is now obsoleted by the new unlisten command but still useful
	if you want unlisten a name computed by the query.
	Note that a listen/notify relname can be any ascii string, not
	just valid relation names.

min(x,y)
max(x,y)

	return the min or max of two integers.

-- 
Massimo Dal Zotto <dz@cs.unitn.it>