Tim McAuley wrote:
> Hi,
>
> I have a table which I have populated with over 5000 entries. There is a
> combined index placed on two of the columns (both bigint). I am trying
> a simple select (i.e. select id where col1 = 1 and col2 = 1) covering
> these two columns and it keeps using a seq scan. Is this correct? I
> would have thought that with this number of entries that an index scan
> should be used.
You must cast the 1 to a bigint:
SELECT id WHERE col1 = 1::bigint AND col1 = 2::bigint
This should probably be listed under FAQ 4.8, but it isn't.
Hope that helps,
Mike Mascari
[EMAIL PROTECTED]
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TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match
