On Fri, Oct 16, 2009 at 9:19 PM, Peter Hunsberger <peter.hunsberger@xxxxxxxxx> wrote: > The basic problem I have is that I have some tables that are > potentially very long (100,000's to millions of rows) and very skinny, > and I end up with maybe a total of 12 bits of data in each row. Are You aware that there are some 20-ish bytes of metadata for each row? saving 4 bytes buys You nothing. Give it up. Also, these are actually pretty small tables (i.e. they fit in memory of any non-toy server). Greetings Marcin -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general