Increasing the size of character varying type in postgres without data loss

Question

I need to increase the size of a character varying(60) field in a postgres database table without data loss.

I have this command

alter table client_deta         


        

Answer 1

From PostgreSQL 9.2 Relase Notes E.15.3.4.2

Increasing the length limit for a varchar or varbit column, or removing the limit altogether, no longer requires a table rewrite.