On Fri, Aug 10, 2007 at 08:13:46PM -0500, Rodrigo De León wrote:
> On 8/10/07, hubert depesz lubaczewski <depesz@depesz.com> wrote:
> > unfortunatelly this query will be hard to optimize.
>
> Uh, how about
>
> SELECT MAX(t1)
> FROM t1
> WHERE '9849' LIKE t1 || '%';
it will not help much as the main burden is the where clause, which is
not indexable.
depesz
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