Re: Converting char to varchar automatically

Melvin Davidson <melvin6925@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'".