dockyard/postgres_ext — pull request #70 by omcnet (2013-03-14 14:39:30+00:00)
Title: Replaced .symbolize with .to_sym in arel nodes.

Without this patch the arel node classes ContainedWithinEquals and
ContainsEquals used .symbolize instead of .to_sym to crate the
operators. This causes a NoMethodError with: undefined method
`symbolize' for "<<=":String.
This patch addresses this issue by using to_sym instead of
symbolize.