zendframework/zf2 — pull request #1849 by ralphschindler (2012-07-11 18:56:39+00:00)
Title: Zend\Db: Fix for ZF2-386, also added Expression support to Zend\Db\Sql\Select join() on clause

Fix for ZF2-386 - Proper handling of single character safe words in platforms, also, feature for expressions in join ON clause.