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Re: [DOCS] Reference Manual

From: "Thomas G(dot) Lockhart" <lockhart(at)alumni(dot)caltech(dot)edu>
To: "Jose' Soares Da Silva" <sferac(at)proxy(dot)bazzanese(dot)com>
Cc: pgsql-hackers(at)postgresql(dot)org, pgsql-docs(at)postgresql(dot)org
Subject: Re: [DOCS] Reference Manual
Date: 1998-03-30 16:17:17
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
> I'm writing Reference Manual and I have two questions:
> 1 - Why PostgreSQL accept HOUR, MINUTE and SECOND to extract if from a
>     date ?
>    EXTRACT (field FROM date_expression)
>    There are no such fields on a date!

And it returns zeros for those fields. I think that is OK; it makes for
a symmetric implementation...

>            - TIMEZONE_HOUR
>            - TIMEZONE_MINUTE

Hmm. Don't do these yet. But:

tgl=> select date_part('timezone', 'now');
(1 row)

so the underlying implementation does know about timezones. It may only
need a parser adjustment. Will look at it...

                        - Tom

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