doctrine/doctrine2 — pull request #667 by juzna (2013-05-13 19:55:20+00:00)
Title: DQL: Allow parameter name to start with any allowed character

Especially, do not require it to start with a letter. A **number** is good enough as well. Why is was it not enabled anyway?

It's most useful when parameter names are auto generated, e.g. using sha1 or md5.