* retrieve SearchableText from catalog, not calling SearchableText method.
* Use InnoDB with non-deferred connection for full_text table, because we don't need fulltext search function of transactionless MyISAM engine.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@41954 20353a03-c40f-0410-a6d1-a30d3c3de9de