From: Robert Haas <rhaas@postgresql.org>
Date: Tue, 22 Jun 2010 11:36:44 +0000 (+0000)
Subject: Deprecate the use of => as an operator name.
X-Git-Tag: REL8_2_18~47
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b12ca1d56136db61d141ad160236b9f745bb354f;p=thirdparty%2Fpostgresql.git

Deprecate the use of => as an operator name.

In HEAD, emit a warning when an operator named => is defined.
In both HEAD and the backbranches (except in 8.2, where contrib
modules do not have documentation), document that hstore's text =>
text operator may be removed in a future release, and encourage the
use of the hstore(text, text) function instead.  This function only
exists in HEAD (previously, it was called tconvert), so backpatch
it back to 8.2, when hstore was added.  Per discussion.
---

diff --git a/contrib/hstore/hstore.sql.in b/contrib/hstore/hstore.sql.in
index 95cecf15d29..4e7c494694b 100644
--- a/contrib/hstore/hstore.sql.in
+++ b/contrib/hstore/hstore.sql.in
@@ -118,6 +118,12 @@ RETURNS hstore
 AS 'MODULE_PATHNAME'
 LANGUAGE 'C' with (isstrict,iscachable);
 
+-- For forward compatibility with PostgreSQL >= 9.0
+CREATE OR REPLACE FUNCTION hstore(text,text)
+RETURNS hstore
+AS 'MODULE_PATHNAME', 'tconvert'
+LANGUAGE C IMMUTABLE; -- not STRICT
+
 CREATE OPERATOR => (
 	LEFTARG = text,
 	RIGHTARG = text,
diff --git a/contrib/hstore/uninstall_hstore.sql b/contrib/hstore/uninstall_hstore.sql
index bfa2e738dce..f0b9fa5e7be 100644
--- a/contrib/hstore/uninstall_hstore.sql
+++ b/contrib/hstore/uninstall_hstore.sql
@@ -21,6 +21,7 @@ DROP FUNCTION hs_concat(hstore,hstore);
 DROP FUNCTION hs_contains(hstore,hstore);
 DROP FUNCTION hs_contained(hstore,hstore);
 DROP FUNCTION tconvert(text,text);
+DROP FUNCTION hstore(text,text);
 DROP FUNCTION akeys(hstore);
 DROP FUNCTION avals(hstore);
 DROP FUNCTION skeys(hstore);