I have the same table as yours with potential to grow over 50 billion of records once operational. But our hardware is currently very limited (8GB RAM). I concur with Tom Lane about the fact that partial indexes aren't really an option, but what about partitioning? I read from the Postgres docs that "The exact point at which a table will benefit from partitioning depends on the application, although a rule of thumb is that the size of the table should exceed the physical memory of the database server." http://www.postgresql.org/docs/current/static/ddl-partitioning.html Now, a table with 500M records would exceed our RAM, so I wonder what impact a table of 50G would have on simple lookup performance (i.e. source = fixed, timestamp = range), taking into account that a global index would exceed our RAM on some 1G records. Did anyone do some testing? Is partitioning a viable option in such scenario? "Adrian von Bidder" <avbidder@xxxxxxxxxxx> wrote in message news:201003020849.19133@xxxxxxxxxxxxxx -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
