schemas/_regproc.mysql.sql
author Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
Mon, 11 Jul 2011 12:39:05 +0200
changeset 7644 7a0914469618
parent 3928 2ced335a9b55
permissions -rw-r--r--
[twisted] add an option to configure twisted's threadpool size Twisted's threadpool size defaults to 10, which means we virtually try to serve up to 10 simulateneous requests but connection-pool size defaults to 4 on CW-server side. That means that under heavy load, chances are high that some HTTP queries end up with a 500 error code / connection-pool exhausted.

/* -*- sql -*- 

   mysql specific registered procedures, 

*/

/* XXX limit_size version dealing with format as postgres version does.
   XXX mysql doesn't support overloading, each function should have a different name
       
   NOTE: fulltext renamed since it cause a mysql name conflict
 */

CREATE FUNCTION text_limit_size(vfulltext TEXT, maxsize INT)
RETURNS TEXT
NO SQL
BEGIN
    IF LENGTH(vfulltext) < maxsize THEN
       RETURN vfulltext;
    ELSE
       RETURN SUBSTRING(vfulltext from 1 for maxsize) || '...';
    END IF;
END ;;