Postgresql Duplicate Key Error Fixture Autoincrement Ids

[jamielsharief]

The Post fixture has values for ID but does not set autoIncrement value, this will cause postgreSQL duplicate key errors when trying to save.

From adding postgreSQL, and then advanced schema generation these fixtures need to be updated, but seems to be an issue with adding new framework tests or writing incorrect fixtures (ie setting the record of a fixture and not setting the next autoincrement value)