Re: Proposed patch: make SQL interval-literal syntax work per spec

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Proposed patch: make SQL interval-literal syntax work per spec
Date: 2008-09-23 12:23:43
Message-ID: 200809231223.m8NCNhV12240@momjian.us
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Tom Lane wrote:
> Bruce Momjian <bruce(at)momjian(dot)us> writes:
> > Tom, which Interval TODO items did you complete with this patch?
> > http://wiki.postgresql.org/wiki/Todo#Dates_and_Times
>
> I think we've at least mostly fixed
>
> * Support ISO INTERVAL syntax if units cannot be determined from the string, and are supplied after the string
>
> * Add support for year-month syntax, INTERVAL '50-6' YEAR TO MONTH
>
> There might be a few glitches left but they are at much smaller grain
> than the TODO is talking about.

Thanks, marked as done.

> ... while I'm looking: I am not sure that I think either of these TODO
> items are sane or standards-compliant:
>
> * Interpret INTERVAL '1 year' MONTH as CAST (INTERVAL '1 year' AS INTERVAL MONTH), and this should return '12 months'
>
> * Support precision, CREATE TABLE foo (a INTERVAL MONTH(3))

OK, I have removed the items; we can always re-add them if they are
requested. Thanks for the review.

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

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