Re: [GENERAL] Selecting from arrays

Simon Drabble wrote:

> I was kinda hoping to do it without resort to (external)
> functions, since I cannot guarantee that Postgres will be the
> target DBMS

Do other SQL databases even have arrays? I kinda assumed that they were
a Postgres thing in any case.

> 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?

Well, that is the assumption I would be working under.

>
> 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@foxlink.net
> >
> > --
> > Chris Bitmead
> > http://www.bigfoot.com/~chris.bitmead
> > mailto:chris.bitmead@bigfoot.com
> >
> >
>
> --
>   "When a German dwarf dances with the butcher's son.." -- Tom Waits
>
>    Simon Drabble                      Somewhere in cyberspace
>    simond@foxlink.net

--
Chris Bitmead
http://www.bigfoot.com/~chris.bitmead
mailto:chris.bitmead@bigfoot.com