On 25 March 2015 at 22:45, Jeff Janes <jeff.janes@xxxxxxxxx> wrote: > How can the avg_width be 4 when the vast majority of entries are 7 > characters long? The datatype is an enum, as I understand it, an enum type always occupies 4 bytes -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance