Re: Arrays Question

From: Oleg Bartunov <oleg(at)sai(dot)msu(dot)su>
To: Achilleus Mantzios <rnd(at)gatewaynet(dot)com>
Cc: <pgsql-sql(at)postgresql(dot)org>, <pgsql-general(at)postgresql(dot)org>
Subject: Re: Arrays Question
Date: 2002-01-25 18:10:47
Message-ID: Pine.GSO.4.33.0201252110180.19023-100000@ra.sai.msu.su
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general pgsql-sql

Check contrib/intarray for indexed access methods to arrays of integers.

Oleg
On Fri, 25 Jan 2002, Achilleus Mantzios wrote:

> Hi
> Is it possible to have subarrays from an array constant??
> Is it possible to have indices on arrays??
>
> For the first here it is whats on 7.1.2:
>
> dynacom=# select '{1,2,3}'::_int4 ;
> ?column?
> ----------
> {1,2,3}
> (1 row)
>
> dynacom=#
>
> dynacom=# select '{1,2,3}[1:2]'::_int4 ;
> ?column?
> ----------
> {1,2,3}
> (1 row)
>
> dynacom=#
>
> What would someone expect is the select to return {1,2}.
>
> Any one has a clue???
>
> If postgresql had this feature along with the indexing on arrays, that would
> make it (not that it is not allready!) the perfect candidate for tree
> manipulation.
>
> Thanx in advance
>

Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
phone: +007(095)939-16-83, +007(095)939-23-83

In response to

Browse pgsql-general by date

  From Date Subject
Next Message Frank Joerdens 2002-01-25 18:17:58 Re: Problems with initdb on Cygwin
Previous Message Tom Lane 2002-01-25 17:55:03 Re: Problems with initdb on Cygwin

Browse pgsql-sql by date

  From Date Subject
Next Message alexandre paes :: aldeia digital 2002-01-25 18:32:07 Re: LIMIT Optimization
Previous Message Tom Lane 2002-01-25 17:58:16 Re: LIMIT Optimization