From: lists-pgsql@useunix.net
To: pgsql-sql@postgresql.org
Subject: Re: Usage of function retruning record in query
Date: Mon, 4 Jul 2011 15:28:01 -0400
Message-ID: <20110704192801.GK13621@slacker.ja10629.home> (raw)
In-Reply-To: <20110704183152.GJ13621@slacker.ja10629.home>
References: <1309762075448-4549140.post@n5.nabble.com>
<868vseduyv.fsf@mgm.protecting.net>
<1309787989162-4550092.post@n5.nabble.com>
<20110704183152.GJ13621@slacker.ja10629.home>
Never mind, turns out you can do it with the array subscript operator. I
stumbled on to this by chance. I don't know if this is in the
documentation somewhere and I perhaps missed it?
On Mon, Jul 04, 2011 at 02:31:52PM -0400, lists-pgsql@useunix.net wrote:
> Sorry, I don't have a useful answer but I have a similar question.
>
> Along these same lines how does one access the discreet x,y components
> of type 'point'?
>
>
> On Mon, Jul 04, 2011 at 06:59:49AM -0700, gmb wrote:
> >
> > Harald Fuchs-10 wrote:
> > > In article <1309762075448-4549140.post@n5.nabble.com>,gmb
> > > <gmbouwer@gmail.com> writes:
> > > SELECT itemid, (calcvalues(itemid)).* FROM itemlist
> > >
> >
> > Thanks for the feedback, Harald.
> >
> > How about specifying different aliases to the resulting values?
> > This will be handy when I use the same function multiple times in the same
> > query.
> > (the function will take another input parameters used in the calculations)
> >
> > E.g.:
> > SELECT itemid, (calcvalues(itemid, '2011-06-06')).*, (calcvalues(itemid,
> > '2011-06-07')).* FROM itemlist;
> >
> > itemid | calcval1 | calcval2 | calcval1 | calcval2
> > --------+----------+----------+----------+----------
> > 4 | 0.67 | 10.00 | 0.64 | 65.23
> > 5 | 1.55 | 45.00 | 1.23 | 23.25
> > 6 | 3.60 | 69.00 | 2.98 | 62.66
> > How will I manage unique column names for this output?
> >
> > --
> > View this message in context: http://postgresql.1045698.n5.nabble.com/Usage-of-function-retruning-record-in-query-tp4549140p455009...
> > Sent from the PostgreSQL - sql mailing list archive at Nabble.com.
> >
> > --
> > Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org)
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>
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To: pgsql-sql@postgresql.org
Cc: lists-pgsql@useunix.net
Subject: Re: Usage of function retruning record in query
In-Reply-To: <20110704192801.GK13621@slacker.ja10629.home>
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