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Reply-To: "Kumar" <sgnerd@yahoo.com.sg>
From: "Kumar" <sgnerd@yahoo.com.sg>
To: "psql" <pgsql-sql@postgresql.org>
Subject: Getting the week of a date
Date: Mon, 16 Feb 2004 17:40:08 +0530
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Dear Friends,

Postgres 7.3.4 on RH Linux7.2.

While this works for month and why not for week

test=3D# select date_trunc('month',current_date + ('5 month')::INTERVAL);
     date_trunc
---------------------
 2004-07-01 00:00:00
(1 row)

test=3D# select date_trunc('week',current_date + ('5 month')::INTERVAL);
ERROR:  TIMESTAMP units 'week' not supported
test=3D#

Any idea on how to find the 3 rd Wednesday of any given month.=20

Thanks
Kumar


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<BODY style=3D"COLOR: #0000ff; FONT-FAMILY: Arial" bgColor=3D#ffffff>
<DIV><FONT size=3D2>Dear Friends,</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>Postgres 7.3.4 on RH Linux7.2.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>While this works for month and why not for=20
week</FONT></DIV><FONT size=3D2>
<DIV><BR>test=3D# select date_trunc('month',current_date + ('5=20
month')::INTERVAL);<BR>&nbsp;&nbsp;&nbsp;&nbsp;=20
date_trunc<BR>---------------------<BR>&nbsp;2004-07-01 00:00:00<BR>(1=20
row)</DIV>
<DIV>&nbsp;</DIV>
<DIV>test=3D# select date_trunc('week',current_date + ('5=20
month')::INTERVAL);<BR>ERROR:&nbsp; TIMESTAMP units 'week' not=20
supported<BR>test=3D#</DIV>
<DIV>&nbsp;</DIV>
<DIV>Any idea on how to find the 3 rd Wednesday of any given month. </DIV>
<DIV>&nbsp;</DIV>
<DIV>Thanks</DIV>
<DIV>Kumar</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
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