joomla/joomla-cms — pull request #4842 by Bakual (2014-10-18 15:23:09+00:00)
Title: Regression: Fixing tags on PostgreSQL

### Issue
According to @wilsonge PR 4114 broke tags on PostgreSQL (see https://github.com/joomla/joomla-cms/pull/4114#issuecomment-59571233).

### Solution
This PR adds the column `a.lft` to the select as suggested by @alikon.