postgres/src/backend/utils/adt/version.c

/*-------------------------------------------------------------------------
 *
 * version.c
 *	 Returns the PostgreSQL version string
 *
 * Copyright (c) 1998-2008, PostgreSQL Global Development Group
 *
 * IDENTIFICATION
 *
 * $PostgreSQL: pgsql/src/backend/utils/adt/version.c,v 1.17 2008/03/25 22:42:44 tgl Exp $
 *
 *-------------------------------------------------------------------------
 */

#include "postgres.h"

#include "utils/builtins.h"


Datum
pgsql_version(PG_FUNCTION_ARGS)
{
	PG_RETURN_TEXT_P(cstring_to_text(PG_VERSION_STR));
}
From: Jeroen van Vianen <jeroenv@design.nl> Attached patch will add a version() function to Postges, e.g. template1=> select version(); version ------------------------------------------------------------ PostgreSQL 6.3.2 on i586-pc-linux-gnu, compiled by gcc 2.8.1 (1 row) 1998-04-29 12:41:29 +00:00			`/*-------------------------------------------------------------------------`
			`*`
Change my-function-name-- to my_function_name, and optimizer renames. 1999-02-13 23:22:53 +00:00			`* version.c`
Functions on 'text' type updated to new fmgr style. 'text' is now TOAST-able. 2000-07-06 05:48:31 +00:00			`* Returns the PostgreSQL version string`
From: Jeroen van Vianen <jeroenv@design.nl> Attached patch will add a version() function to Postges, e.g. template1=> select version(); version ------------------------------------------------------------ PostgreSQL 6.3.2 on i586-pc-linux-gnu, compiled by gcc 2.8.1 (1 row) 1998-04-29 12:41:29 +00:00			`*`
Update copyrights in source tree to 2008. 2008-01-01 19:46:01 +00:00			`* Copyright (c) 1998-2008, PostgreSQL Global Development Group`
Add missing copyright blurb, make ruleutils.c use the standard layout for its header comment. 2007-01-20 01:08:42 +00:00			`*`
From: Jeroen van Vianen <jeroenv@design.nl> Attached patch will add a version() function to Postges, e.g. template1=> select version(); version ------------------------------------------------------------ PostgreSQL 6.3.2 on i586-pc-linux-gnu, compiled by gcc 2.8.1 (1 row) 1998-04-29 12:41:29 +00:00			`* IDENTIFICATION`
			`*`
Simplify and standardize conversions between TEXT datums and ordinary C strings. This patch introduces four support functions cstring_to_text, cstring_to_text_with_len, text_to_cstring, and text_to_cstring_buffer, and two macros CStringGetTextDatum and TextDatumGetCString. A number of existing macros that provided variants on these themes were removed. Most of the places that need to make such conversions now require just one function or macro call, in place of the multiple notational layers that used to be needed. There are no longer any direct calls of textout or textin, and we got most of the places that were using handmade conversions via memcpy (there may be a few still lurking, though). This commit doesn't make any serious effort to eliminate transient memory leaks caused by detoasting toasted text objects before they reach text_to_cstring. We changed PG_GETARG_TEXT_P to PG_GETARG_TEXT_PP in a few places where it was easy, but much more could be done. Brendan Jurd and Tom Lane 2008-03-25 22:42:46 +00:00			`* $PostgreSQL: pgsql/src/backend/utils/adt/version.c,v 1.17 2008/03/25 22:42:44 tgl Exp $`
From: Jeroen van Vianen <jeroenv@design.nl> Attached patch will add a version() function to Postges, e.g. template1=> select version(); version ------------------------------------------------------------ PostgreSQL 6.3.2 on i586-pc-linux-gnu, compiled by gcc 2.8.1 (1 row) 1998-04-29 12:41:29 +00:00			`*`
			`*-------------------------------------------------------------------------`
			`*/`

			`#include "postgres.h"`

Functions on 'text' type updated to new fmgr style. 'text' is now TOAST-able. 2000-07-06 05:48:31 +00:00			`#include "utils/builtins.h"`
From: Jeroen van Vianen <jeroenv@design.nl> Attached patch will add a version() function to Postges, e.g. template1=> select version(); version ------------------------------------------------------------ PostgreSQL 6.3.2 on i586-pc-linux-gnu, compiled by gcc 2.8.1 (1 row) 1998-04-29 12:41:29 +00:00

Functions on 'text' type updated to new fmgr style. 'text' is now TOAST-able. 2000-07-06 05:48:31 +00:00			`Datum`
			`pgsql_version(PG_FUNCTION_ARGS)`
From: Jeroen van Vianen <jeroenv@design.nl> Attached patch will add a version() function to Postges, e.g. template1=> select version(); version ------------------------------------------------------------ PostgreSQL 6.3.2 on i586-pc-linux-gnu, compiled by gcc 2.8.1 (1 row) 1998-04-29 12:41:29 +00:00			`{`
Simplify and standardize conversions between TEXT datums and ordinary C strings. This patch introduces four support functions cstring_to_text, cstring_to_text_with_len, text_to_cstring, and text_to_cstring_buffer, and two macros CStringGetTextDatum and TextDatumGetCString. A number of existing macros that provided variants on these themes were removed. Most of the places that need to make such conversions now require just one function or macro call, in place of the multiple notational layers that used to be needed. There are no longer any direct calls of textout or textin, and we got most of the places that were using handmade conversions via memcpy (there may be a few still lurking, though). This commit doesn't make any serious effort to eliminate transient memory leaks caused by detoasting toasted text objects before they reach text_to_cstring. We changed PG_GETARG_TEXT_P to PG_GETARG_TEXT_PP in a few places where it was easy, but much more could be done. Brendan Jurd and Tom Lane 2008-03-25 22:42:46 +00:00			`PG_RETURN_TEXT_P(cstring_to_text(PG_VERSION_STR));`
From: Jeroen van Vianen <jeroenv@design.nl> Attached patch will add a version() function to Postges, e.g. template1=> select version(); version ------------------------------------------------------------ PostgreSQL 6.3.2 on i586-pc-linux-gnu, compiled by gcc 2.8.1 (1 row) 1998-04-29 12:41:29 +00:00			`}`