[Postgresql] Boolean data type
Fixed in 31b213e4db37f39fe3374ad2ea4143350e126242 - tested against postgresql, mysql and sqlite

If I create manually my table with a boolean type I can't insert a record using a field like BooleanField because it try to insert an integer.
Postgresql handles correctly bool() and stores a proper boolean field not like MySQL or Oracle which are casting in integer.
