Hi!
>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';
It does not return any data.
Andrus.