I am trying to resize a column on a large-ish database (with 5 million rows).
The column was 20 characters before, now I want to make it 35 characters. Challenge is: this is the main indexed column in a busy database. I tried looking at the ALTER TABLE commands available and there seems nothing that allows me to simply change column size from varchar(20) to varchar(35)? So I have this in mind: BEGIN; ALTER TABLE users ADD COLUMN name_new varchar(35); UPDATE users SET name_new = name; ALTER TABLE users DROP COLUMN name; ALTER TABLE users RENAME COLUMN name_new TO name; COMMIT; I guess this would work, but I am wondering if there is a nicer way to do this that doesn't involve a new column, copying, then dropping old column? Thanks! -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
