Restored from http://sysmagazine.com/posts/181666/
Greetings all.
So developing that in the project over whom I now works, it were required to use function of GROUP_CONCAT (). Unfortunately, Doctrine2 «from a box» did not support this function. The available extension from Doctrine2 (Benjamin Eberlei) one of developers appeared as «limited support for GROUP_CONCAT». I understands that usage of the g function by the automatic machine put the project in dependence on MySQL, but to change a DBMS as gloves are not plan. So we will leave this question behind frames of a post.
As pogugliv I doing not find the ready decision, deciding to write him (ha t for a basis development of Benjamin'á). There are nothing to make comments there, therefore simply I represents it on court of the public: