Fixed issue 03527: Due to SQL bad syntax, survey can not be activated at all under PostgreSQL (any version). Tested on PostgreSQL and MySQL.
Dev: Please test on MSSQL Server, it is a very very little thing, but makes limesurvey horribly fail when activating a survey.

git-svn-id: file:///Users/Shitiz/Downloads/lssvn/source/limesurvey@7375 b72ed6b6-b9f8-46b5-92b4-906544132732