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Re: Bug 1500

From: Josh Berkus <josh(at)agliodbs(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Bug 1500
Date: 2005-03-26 22:04:14
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers

> > Yeah.  Karel Zak, who wrote that code, is convinced we should remove it,
> > but I don't think anyone else is ...
>  I think I was Peter and Josh Berkus who convinced me that the code is
> bed. "we should remove..." is opinion only...

I certainly didn't recommend removing it before we have a replacement ready.  

The complaint, btw, was that the current to_char formats intervals as if they 
were dates.   This results in some rather confusing output.   I wanted to 
improve to_char to support proper interval formatting, but apparently it's 
difficult to do that without breaking other aspects of to_char (at least, I 
was told that).   

What we need is a function or functions which do the following:

SELECT to_char( INTERVAL '43 hours 20 minutes', 'MI' ) || ' min';
2600 min

SELECT to_char( INTERVAL '43 hours 20 minutes', 'WK:DD:HR:MI' );

SELECT to_char( INTERVAL '3 years 5 months','MM' ) || ' mons';
41 mons

etc.  This would be more sophisticated than the logic employed for the current 
to_char, as the interval would be re-calculated in the units supplied, 
limited by the month/year|day/hour/minute boundary.   

Josh Berkus
Aglio Database Solutions
San Francisco


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Subject: Re: Bug 1500
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