X-Git-Url: http://wagnertech.de/gitweb/gitweb.cgi/mfinanz.git/blobdiff_plain/3ac9bdcaf2633da20fc12464eddc946417689b48..0bb6aed531f07d348ac70b7d6a47526e957485ed:/sql/Pg-upgrade2/PgCommaAggregateFunction.sql

diff --git a/sql/Pg-upgrade2/PgCommaAggregateFunction.sql b/sql/Pg-upgrade2/PgCommaAggregateFunction.sql
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+-- @tag: PgCommaAggregateFunction
+-- @description: Neue Postgres Funktion zur Abfrage mehrdeutiger Ergebniszeilen als kommagetrennte Liste
+-- @depends: release_2_4_1
+-- Taken from: http://www.zigo.dhs.org/postgresql/#comma_aggregate
+-- Copyright © 2005 Dennis Björklund
+-- License: Free
+-- Thx. to A. Kretschmer, http://archives.postgresql.org/pgsql-de-allgemein/2007-02/msg00006.php
+CREATE FUNCTION comma_aggregate(text,text) RETURNS text AS '
+  SELECT CASE WHEN $1 <> '''' THEN $1 || '', '' || $2 
+                              ELSE $2 
+         END; 
+' LANGUAGE sql IMMUTABLE STRICT; 
+
+CREATE AGGREGATE comma (basetype=text, sfunc=comma_aggregate, stype=text, initcond='' );
+