I may be missing something simple here, but I have an attribute in a table that was created as NOT NULL. I now need to remove this constraint. I don't see a proper way to do this. I think I can update the pg_attribute table and change attnotnull from true to false. Is this an acceptable solution or is there a good reason that I should not directly edit the system tables? Maybe I'm missing something but I didn't see another way to do it other then creating a new table, selecting into it and dropping the old table, which seems like a lot of work for something so simple. Thanks, Matt