Re: Usage of function retruning record in query

From: lists-pgsql(at)useunix(dot)net
To: pgsql-sql(at)postgresql(dot)org
Subject: Re: Usage of function retruning record in query
Date: 2011-07-04 19:28:01
Message-ID: 20110704192801.GK13621@slacker.ja10629.home
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-sql

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(at)useunix(dot)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(dot)post(at)n5(dot)nabble(dot)com>,gmb
> > > &lt;gmbouwer(at)gmail(dot)com&gt; 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-tp4549140p4550092.html
> > Sent from the PostgreSQL - sql mailing list archive at Nabble.com.
> >
> > --
> > Sent via pgsql-sql mailing list (pgsql-sql(at)postgresql(dot)org)
> > To make changes to your subscription:
> > http://www.postgresql.org/mailpref/pgsql-sql
>
> --
> Sent via pgsql-sql mailing list (pgsql-sql(at)postgresql(dot)org)
> To make changes to your subscription:
> http://www.postgresql.org/mailpref/pgsql-sql

In response to

Browse pgsql-sql by date

  From Date Subject
Next Message gmb 2011-07-05 08:21:13 Re: Usage of function retruning record in query
Previous Message lists-pgsql 2011-07-04 18:31:52 Re: Usage of function retruning record in query