Well, I think it´ll not as easy as you said. That tables has dependencies. So, if I try to alter type it gives me ERROR: cannot alter type of a column used in a trigger definition. I dropped all Triggers of that table and it gives me ERROR: cannot alter type of a column used by a view or rule. Then, if I need to drop everything to change that thing I think is better just have an empty structure and copy entire database data to it. And why do we used domains, because we were Firebird and on that database a integer or a domain based on an integer is the same, so we converted to Postgres using that way. Thanks -- Sent from: http://www.postgresql-archive.org/PostgreSQL-general-f1843780.html