Re: zip code search within x miles

[Hank]

> No, those indexes were intentional.  If you read the section of the manual
> on optimizing queries, you will encounter a page that mentions what are
> known as "covering indexes".  The advantage to a covering index is that if
> your data is numeric and in the index, 

Except that the zip code field is not (and should not be) numeric, so
the qualification test fails.