Re: [HACKERS] OR clause status report

On 31-Jul-98 Vadim Mikheev wrote:
> Vince Vielhaber wrote:
>>
>> Now I've been wondering why my selects are so slow. Is this telling
>> me
>> that they're NOT using the index? And if not, any ideas why?
>>
>> The select returned 35 rows out of approx 170,000.
>>
>> -----
>> campsites=> explain select * from locations where
>> lower(city)='oxford';
> ^^^^^^^^^^^
> You should
>
> create index index_name on locations (lower(city))
> ^^^^^
> - this is known as functional index...
>

campsites=> create index lower_city on locations (lower(city));
ERROR: DefineIndex: (null) class not found
campsites=>

Hmmm..

Vince.
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