| From: | Raymond O'Donnell <rod(at)iol(dot)ie> |
|---|---|
| To: | Jasen Betts <jasen(at)xnet(dot)co(dot)nz> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: date ranges in where |
| Date: | 2009-05-07 12:12:50 |
| Message-ID: | 4A02D042.9090907@iol.ie |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
On 07/05/2009 12:59, Jasen Betts wrote:
> where lastlogin::date between '2009-05-01'::date and '2009-05-02'::date
>
> If you leave it uncast postgres will probably convert the lastlogin to
> a string and produce results other than that desired and proabaly
> take longer to do it too.
The OP was basing the query on a timestamp column, so I'd say Postgres
was casting everything to timestamp, with the results he reported.
Ray.
------------------------------------------------------------------
Raymond O'Donnell, Director of Music, Galway Cathedral, Ireland
rod(at)iol(dot)ie
Galway Cathedral Recitals: http://www.galwaycathedral.org/recitals
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