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This started happening after updating to 0.2. When we run a migration that looks like
change_column(:users, :login, :citext)
the migration fails, and we get the stack trace seen at https://gist.github.com/xxx/42b8f7b76393bdd2f17b
This fails up to and including the HEAD of master, currently at 0e955eb as of this writing.
Version 0.1 handles the migration correctly.
Thanks for pointing this out, I'll chase it down soon
Fixes definition of citext in PostgreSQLAdapter
Fixes issue #62
Just pushed 0.2.1 which fixes this issue