Re: [GENERAL] Selecting from arrays

From: Simon Drabble <simond(at)foxlink(dot)net>
To: Postgres Group <pgsql-general(at)postgreSQL(dot)org>
Subject: Re: [GENERAL] Selecting from arrays
Date: 1999-05-09 13:48:21
Message-ID: Pine.LNX.3.96.990509094354.22324C-100000@dragon
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On Sat, 8 May 1999, Chris Bitmead wrote:

>
> There are some functions in contrib/ that handle some of these cases.

Thanks for the pointer.

I was kinda hoping to do it without resort to (external) functions,
since I cannot guarantee that Postgres will be the target DBMS and I also
cannot get array_iterator to compile :(

On the subject of contribs, what sort of licence are these distributed
under? I can't find any documentation for them except for the main
COPYRIGHT file in the top-level postgres directory. Does this mean the
contribs are covered by the same terms, so I can distribute the
array_iterator code with my app provided I include the copyright notice?

Simon.

>
> > > > date loc temperature (int4[])
> > > > 12/01/98 4th & Main {12, 14, 14, 15, 17, 19, 25, ...}
> > > > 12/04/98 Station 4 {12, 13, 14, 666, 18, 20, 24, ...}
> > > >
> > > > I want to select only those rows where one of the recorded temps is equal to ,
> > > > say, 17 , and also to select a range (rows where temp > 20, or where temp <
> > > > 10). I might also want to select rows where the temp could not be measured
> > > > (indicated by 666) at a certain period.
> > > >
> > >
> > > How you can do it ????
> > > You create a function or ..????
> > > You can send me some example, please ????
> > > I try to make a function, for manegement the arrays , Me right ?
> > >
> > > >
> >
> > I'd rather not have to code a function for something which, it seems to
> > me, should be part of the installation. The application is eventually
> > intended for several platforms all of which might be running different
> > DBMS's, so I'd like to know if there's a common SQL way to do this and if
> > so if Postgres supports it.
> >
> > Simon.
> >
> > --
> > "When a German dwarf dances with the butcher's son.." -- Tom Waits
> >
> > Simon Drabble Somewhere in cyberspace
> > simond(at)foxlink(dot)net
>
> --
> Chris Bitmead
> http://www.bigfoot.com/~chris.bitmead
> mailto:chris(dot)bitmead(at)bigfoot(dot)com
>
>

--
"When a German dwarf dances with the butcher's son.." -- Tom Waits

Simon Drabble Somewhere in cyberspace
simond(at)foxlink(dot)net

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