Hello,
I wanted to use a custom type as an auto-increment / primary key in
one of my
tables. The type is made like this:
class BoxId (sqlalchemy.types.TypeDecorator):
impl = sqlalchemy.types.Integer
Using it in a table like this:
box = Table ('box', metadata,
Column ('id', BoxId, primary_key=True),
Column ('catalog', Unicode(64)),
)
But having the table defined like that raises an exception when trying
to insert
values. I'm using postgres and it looks like
sqlalchemy.databases.postgres.PGDefaultRunner.get_column_default ()
deals
with auto-increments and is specifically looking for an
sqlalchemy.types.Integer.
I expected sqlalchemy would treat a type created the way I did above
more or less
like an integer, because of the impl attribute.
Is this a bug in either sqlalchemy or specifically the postgres part?
Or is this just
not supposed to work like this? (I'm fairly new to sqlalchemy :)
Thank you for any help you can give me.
-- Kuno.
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