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From: Mike Rylander <miker@n2bb.com>
Reply-To: miker@n2bb.com
Organization: N2 Broadband
To: teknokrat@yahoo.com, pgsql-sql@postgresql.org
Subject: Re: converting interval to timestamp
Date: Fri, 1 Aug 2003 08:41:49 -0400
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If the number of seconds between timestamps is acceptable then this is the 
solution I use:

SELECT ABS(EXTRACT(EPOCH FROM t.field1) - EXTRACT(EPOCH FROM t.field2)) AS 
diff FROM table AS t;

Adjust to your column and WHERE needs.  One caveat:  this only works for dates 
within the UNIX epoch ( after 1969-12-31).

On Thursday 31 July 2003 12:05 pm, teknokrat wrote:
> The difference of two dates/timestamps always gives an interval. is
> there a way to convert this interval into  number such as number of
> milliseconds or number of days?
>
> Also does anyone know what field type an interval would map to in jdbc?
>
> thanks
>
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose an index scan if your
>       joining column's datatypes do not match

- -- 
Mike Rylander
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