From: | Ron Johnson <ron(dot)l(dot)johnson(at)cox(dot)net> |
---|---|
To: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: Create index on the year of a date column |
Date: | 2003-06-06 10:34:01 |
Message-ID: | 1054895641.18124.46.camel@haggis |
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Thread: | |
Lists: | pgsql-general |
On Thu, 2003-06-05 at 11:38, Nick Barr wrote:
> Hi,
>
> I am trying to create an index on the year of a date field, to speed up
> some queries. Table structure is as follows
If, for example, you want all records where item_created_start_date
in calendar year 2001, why not create the index on i_c_s_d and say
WHERE item_created_start_date between '2001-01-01' and '2001-12-31'
--
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| Ron Johnson, Jr. Home: ron(dot)l(dot)johnson(at)cox(dot)net |
| Jefferson, LA USA http://members.cox.net/ron.l.johnson |
| |
| Regarding war zones: "There's nothing sacrosanct about a |
| hotel with a bunch of journalists in it." |
| Marine Lt. Gen. Bernard E. Trainor (Retired) |
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