From: | "Greg Sabino Mullane" <greg(at)turnstep(dot)com> |
---|---|
To: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: [PATCHES] Intervals within information_schema |
Date: | 2006-08-25 10:17:55 |
Message-ID: | 4f44b7a867749dfbc8420f032143c6cc@biglumber.com |
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Lists: | pgsql-hackers pgsql-patches |
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>> Does anyone know what is supposed to go into the interval_type field?
> INTERVAL_TYPE IN
> ( 'YEAR', 'MONTH', 'DAY', 'HOUR', 'MINUTE', 'SECOND',
> 'YEAR TO MONTH', 'DAY TO HOUR', 'DAY TO MINUTE',
> 'DAY TO SECOND', 'HOUR TO MINUTE',
> 'HOUR TO SECOND', 'MINUTE TO SECOND' )
>
> Also, depending on which one of these is specified, the precision field
> varies in meaning. I haven't done a complete analysis, but it might
> not be as simple as your patch suggests.
Yes, I saw some docs that hinted as much. I'm still not clear on exactly
what interval_type is supposed to represent, or at least how it would ever
apply to a Postgres attribute. It almost seems as though the spec is calling
for interval_type of 'HOURS' and interval_precision of '2' for an example
interval of '2 hours'? I'd normally say that we should leave it as NULL in
such a case, but someone added a "FIXME" at some point, which led me to
ask exactly what should go in there. Not a big deal, I suppose - it looks
as though few, if any, other products are using those fields either.
Thanks for the reply.
- --
Greg Sabino Mullane greg(at)turnstep(dot)com
End Point Corporation
PGP Key: 0x14964AC8 200608250614
http://biglumber.com/x/web?pk=2529DF6AB8F79407E94445B4BC9B906714964AC8
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