SocalNick/ScnSocialAuth — pull request #1 by EvanDotPro (2012-07-12 06:56:43+00:00)
Title: Change provider_id field to varchar(25)

Google's ID's are very long integers such as:

113574631361210648490

This is too large for an int, unsigned int, or even an unsigned bigint
field. Due to this, varchar seems like the next logical choice.