Re: RE: pl/pgsql and returning rows

FYI, I am always looking for additional examples that I should add in
the next edition.

> Yes: good example! I keep a printed copy on my desk... :-)
>
> > -----Original Message-----
> > From: Bruce Momjian [SMTP:pgman(at)candle(dot)pha(dot)pa(dot)us]
> > Sent: Tuesday, March 27, 2001 3:52 PM
> > To: Jeff Eckermann
> > Cc: pgsql-sql(at)postgresql(dot)org; wade
> > Subject: Re: [SQL] RE: pl/pgsql and returning rows
> >
> > MY book in chapter 18 has a Pl/PgSQL function called change_statename
> > that does insert/update automatically.
> >
> > http://www.postgresql.org/docs/awbook.html
> >
> > > As a workaround, you can insert your row into an existing table, then
> > > retrieve it from there later. I think you need to enumerate all of the
> > > fields, as in 'INSERT INTO table VALUES (ret.field1,
> > > ret.field2,...ret.fieldn);'. At least, I haven't succeeded any other
> > way.
> > > Messy, but the best method available right now.
> > >
> > > > -----Original Message-----
> > > > From: Richard Huxton [SMTP:dev(at)archonet(dot)com]
> > > > Sent: Tuesday, March 27, 2001 2:27 AM
> > > > To: pgsql-sql(at)postgresql(dot)org; wade
> > > > Subject: Re: pl/pgsql and returning rows
> > > >
> > > > From: "wade" <wade(at)wavefire(dot)com>
> > > >
> > > > > create function get_details(int4) returns details as '
> > > > > declare
> > > > > ret details%ROWTYPE;
> > > > > site_rec record;
> > > > > cntct contacts%ROWTYPE;
> > > > > begin
> > > > > select into site_rec * sites_table where id = $1 limit 1;
> > > > > select into cntct * from contacts where id = site_rec.contact;
> > > > >
> > > > > -- and then i populate rows of ret.
> > > > > ret.name := cntct.name;
> > > > > ret.ip := site_rec.ip;
> > > > > .
> > > > > .
> > > > > .
> > > > > return ret;
> > > > > end;
> > > > > ' language 'plpgsql';
> > > > >
> > > > > now the problem is when is when I do a:
> > > > > SELECT get_details(55);
> > > > > all i get is a single oid-looking return value:
> > > > > get_details
> > > > > -------------
> > > > > 136295592
> > > > > (1 row)
> > > >
> > > > Sorry - you can't return a row from a function at the present time
> > (except
> > > > for trigger functions which are special) although I believe this is on
> > the
> > > > todo list for a later 7.x release.
> > > >
> > > > Just from the top of my head, you might try a view with a select rule,
> > > > although I'm not completely clear what your objectives are.
> > > >
> > > > - Richard Huxton
> > > >
> > > >
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> >
> > --
> > Bruce Momjian | http://candle.pha.pa.us
> > pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
> > + If your life is a hard drive, | 830 Blythe Avenue
> > + Christ can be your backup. | Drexel Hill, Pennsylvania 19026
>

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026