Return-Path: owner-postman Received: from localhost.Berkeley.EDU (localhost.Berkeley.EDU [127.0.0.1]) by nobozo.CS.Berkeley.EDU (8.6.9/8.6.3) with SMTP id IAA20398 for postgres-redist; Thu, 1 Sep 1994 08:53:30 -0700 Resent-From: POSTGRES mailing list Resent-Message-Id: <199409011553.IAA20398@nobozo.CS.Berkeley.EDU> Sender: owner-postman@postgres.Berkeley.EDU X-Return-Path: owner-postman Received: from faerie.CS.Berkeley.EDU (faerie.CS.Berkeley.EDU [128.32.37.53]) by nobozo.CS.Berkeley.EDU (8.6.9/8.6.3) with ESMTP id IAA20388 for ; Thu, 1 Sep 1994 08:53:29 -0700 Received: from localhost.Berkeley.EDU (localhost.Berkeley.EDU [127.0.0.1]) by faerie.CS.Berkeley.EDU (8.6.9/8.1B) with SMTP id IAA04507; Thu, 1 Sep 1994 08:53:06 -0700 Message-Id: <199409011553.IAA04507@faerie.CS.Berkeley.EDU> X-Authentication-Warning: faerie.CS.Berkeley.EDU: Host localhost.Berkeley.EDU didn't use HELO protocol From: aoki@cs.berkeley.edu (Paul M. Aoki) To: "David Alan Nelson" Cc: postgres@postgres.Berkeley.EDU Subject: Re: Time Queries Reply-To: aoki@cs.berkeley.edu (Paul M. Aoki) In-reply-to: Your message of Thu, 1 Sep 1994 14:03:39 +0100 (BST) Date: Thu, 01 Sep 94 08:53:00 -0700 X-Sender: aoki@postgres.Berkeley.EDU Resent-To: postgres-redist@postgres.Berkeley.EDU X-Mts: smtp Resent-Date: Thu, 01 Sep 94 08:53:30 -0700 Resent-XMts: smtp "David Alan Nelson" writes: > I have a table with a column in it storing time information, i.e. the > column has type abstime. In Postgres 4.1, I need to be able to add > a relative time amount on to this, i.e. using the syntax @ '7' "days", > as stated in the reference manual. > I can not get this to work for either fields of type reltime or type > abstime. Can anybody tell me how to do this. the only operator like this that's built in is timepl, which is abstime + reltime. if you want others, you must write/register them yourself. faerie:aoki (112)> monitor foo Welcome to the POSTGRES terminal monitor Go * create x (abst = abstime)\g Query sent to backend is "create x (abst = abstime)" CREATE Go * append x (abst="now")\g Query sent to backend is "append x (abst="now")" APPEND 334138 Go * retrieve (x.all)\g Query sent to backend is "retrieve (x.all)" --------------- | abst | --------------- | Thu Sep 01 15:50:04 1994 GMT| --------------- Go * retrieve (t = x.abst + "@ 7 days"::reltime)\g Query sent to backend is "retrieve (t = x.abst + "@ 7 days"::reltime)" --------------- | t | --------------- | Thu Sep 08 15:50:04 1994 GMT| --------------- Go * -- Paul M. Aoki | University of California at Berkeley aoki@CS.Berkeley.EDU | Dept. of EECS, Computer Science Division (#1776) | Berkeley, CA 94720-1776 ============================================================================== To add/remove yourself to/from the POSTGRES mailing list: send mail with the subject line ADD or DEL to "postgres-request@postgres.Berkeley.EDU" If this fails, send mail to "post_questions@postgres.Berkeley.EDU" and a human will deal with it. DO NOT post to the "postgres" mailing list. ==============================================================================