Hello all,
This is a copy from Admin explaining how to change variable lenght:
>If you're willing to do a little magic to the system tables (and you have
>a recent backup :) ). You can change the atttypmod of the column in
>question from 14 to 24. This really only works on variable length items
>and only to expand them, but...
>
>You pretty much need to do a sequence like:
>select oid, relname from pg_class where relname='<tablename>';
>update pg_attribute set atttypmod=24 where attrelid=<oid from previous>
> and attname='<attributename>'
>in a superuser account.
Best regards,
Jean-Michel POURE