I have two identical tables. But the with of the fields are different. Need to know whether changing from varchar(100) to varchar(30) will increase the performance, or its just the memory access. -- View this message in context: http://postgresql.1045698.n5.nabble.com/Field-wise-checking-the-performance-tp3384348p3384348.html Sent from the PostgreSQL - performance mailing list archive at Nabble.com. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance