From: | Jeff <threshar(at)torgo(dot)978(dot)org> |
---|---|
To: | Patrick Hatcher <PHatcher(at)macys(dot)com> |
Cc: | "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: Index on timestamp to date field |
Date: | 2003-10-14 12:53:36 |
Message-ID: | Pine.BSF.4.44.0310140851410.1994-100000@torgo.978.org |
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Thread: | |
Lists: | pgsql-general |
On Mon, 13 Oct 2003, Patrick Hatcher wrote:
> I have a timestamp field where I find I'm doing a lot of searching by date
> (YYYY-MM-DD) or using this field as a match to another table that has a
> date format. I wanted to create an index on the timestamp field using a
> date format. Is this possible? I tried:
> CREATE INDEX test_2 ON table1 USING btree to_char(field2, 'MM-DD-YYYY');
> but I get an error message error at or new to_char
>
> TIA
>
So you don't want a oh. lets call it a "real index" on the timestamp
field?
create index ts_index on mytable(mytimestamp);
Or can you not change the way the dates are input?
Or is the "mytimestamp" field a varchar containing a date string?
--
Jeff Trout <jeff(at)jefftrout(dot)com>
http://www.jefftrout.com/
http://www.stuarthamm.net/
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