Re: [BUGS] BUG #1993: Adding/subtracting negative time intervals

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
Cc: Klint Gore <kg(at)kgb(dot)une(dot)edu(dot)au>, Michael Fuhr <mike(at)fuhr(dot)org>, Michael Glaesemann <grzm(at)myrealbox(dot)com>, Russell Smith <mr-russ(at)pws(dot)com(dot)au>, Nicholas <hb(at)x256(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgreSQL(dot)org>
Subject: Re: [BUGS] BUG #1993: Adding/subtracting negative time intervals
Date: 2005-10-26 15:07:58
Message-ID: 6236.1130339278@sss.pgh.pa.us
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Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> Keep in mind that the addition of the interval_justify_hours() did
> generate some regression test changes, so removing
> interval_justify_hours() might just take the results back to what we had
> in 8.0.

Not hardly. I tried already. The existing timestamp_mi behavior is
probably as close to 8.0 as we can get given the change in underlying
representation.

> I guess my point is that we are changing 8.0.X behavior so we better be
> sure it is now the way we want it to remain.

[ shrug... ] We've changed datetime behavior in every past release,
we're changing it for 8.1, we'll probably change it some more for 8.2,
and again after that. All the datetime code is a work in progress.
Get used to it.

regards, tom lane

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