install sql bugfix

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2555 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
install sql bugfix

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2556 1f8fe7d8-47f0-464c-8d0a-336f4953ab05