Re: Consistency problem with unlabeled intervals

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Thomas Lockhart <lockhart(at)fourpalms(dot)org>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Consistency problem with unlabeled intervals
Date: 2002-05-03 02:01:46
Message-ID: 2897.1020391306@sss.pgh.pa.us
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Thomas Lockhart <lockhart(at)fourpalms(dot)org> writes:
>> That is, '60' is read as so many hours, '1.5' is read as so many
>> seconds. This seems a tad inconsistent.

> They fulfill two separate use cases. Time zones can now be specified as
> intervals, and the default unit must be hours. A number with a decimal
> point is usually in units of seconds, and matches past behavior afaik.

Hm. Well, if this behavior is intentional, it'd be nice to document it.
The existing paragraphs about interval's I/O format don't mention
behavior for unitless numbers at all, much less explain that a decimal
point has semantic significance.

regards, tom lane

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