On Wed, May 02, 2007 at 05:59:49PM -0400, Tom Lane wrote:
> Stephen Harris <lists@spuddy.org> writes:
> > "select stuff from table where index_key in (" .
> > join(",",keys %hash) . ") AND non_index_row in ('xyz','abc','def')
> In what, a seq scan?
Yeah, if the number of comparisons exceeds 156 then it switched from
index scan to sequential scan.
> time, I can see where the time might get eaten up. Where is the
> index_key column in the tuples, exactly?
First column.
--
rgds
Stephen
