[GENERAL] CLUSTER on 2 indexes ?
Hello, Considering the CLUSTER operation on a frequently updated table, if I have 2 indexes on the table how do I choose one of them ? or is it possible to have CLUSTER take both into consideration... my table is read from based on two columns: a 'timestamp' integer column (actually a UTC integer timestamp) and a text columun called 'var' that separates raw data from each other... something like a 'product type' in a wharehouse example. All queries that read from the table specify a time range and also the 'product type'. I have indexes on both. Evidently no CLUSTERing should be worse than clustering on any of them, but is there a way to have the two or choose the most profitable ? thanks Joao -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
Re: [GENERAL] CLUSTER on 2 indexes ?
On Mon, Feb 15, 2010 at 9:47 AM, Joao Ferreira gmail joao.miguel.c.ferre...@gmail.com wrote: Hello, Considering the CLUSTER operation on a frequently updated table, if I have 2 indexes on the table how do I choose one of them ? or is it possible to have CLUSTER take both into consideration... You could have a multi-column index -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
