I see - thanks very much. I created an index for column 'oid' which I was using in a WHERE. So rule of thumb- create an index for column(s) which I use in WHERE queries.
Thanks, Chis On Wed, 30 Jun 2004 15:30:52 +0800, Christopher Kings-Lynne <[EMAIL PROTECTED]> wrote: > > > > Why would I or would I not create multiple indexes in a table? I > > created another index in the same table an it's improved performance > > even more. > > You create indexes when you need indexes. Indexes are most helpful when > they match the WHERE clause of your selects. > > So, if you commonly do one query that selects on one column, and another > query that selects on two other columns - then create one index on the > first column and another index over the second two columns. > > Chris > ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
