Re: query for records based on date

Brandon Metcalf wrote:
> If I have a table with an attribute of type "timestamp without time
> zone", what is the best way to query that table for records that are
> older than, say, one week.
> 
> I suppose I could get the current time in epoch seconds and the time of
> the attribute in the same, and select those records where the difference
> is greater than the number of seconds in a week.  Is there something
> easier like
> 
>   SELECT * FROM table WHERE attribute IS OLDER THAN one week;

Look up "intervals" in the manuals - you can just subtract timestamps/dates.

Probably also worth searching the mailing lists for "ago()" and 
"volatile" to learn about the issues with indexing.

--  Richard Huxton  Archonet Ltd