On 10/6/14, 12:41 PM, hari.fu...@gmail.com wrote:
Melvin Davidson <melvin6...@gmail.com> writes:This query might work for you, but double check all result statements first. SELECT 'ALTER TABLE ' || quote_ident(n.nspname) || '.' || quote_ident(c.relname) || ' ALTER COLUMN ' || quote_ident(a.attname) || ' TYPE varchar;' FROM pg_class c JOIN pg_namespace n ON n.oid = c.relnamespace JOIN pg_attribute a ON a.attrelid = c.oid JOIN pg_type t ON t.oid = a.atttypid WHERE t.typname = 'char' AND n.nspname <> 'pg_catalog';Make that "t.typname = 'bpchar'".
Just a heads-up: each of those ALTER's will rewrite the table, so unless your database is tiny this will be a slow process. There's ways to work around that, but they're significantly more complicated. -- Jim Nasby, Data Architect, Blue Treble Data in Trouble? Get it in Treble! http://BlueTreble.com -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
