From: | Dariyoosh Dariyoosh <d(dot)sunforums(at)gmail(dot)com> |
---|---|
To: | Luca Vernini <lucazeo(at)gmail(dot)com> |
Cc: | "pgsql-sql(at)postgresql(dot)org" <pgsql-sql(at)postgresql(dot)org> |
Subject: | Re: Question about Array data type in PostgreSQL and their link with hash table concept |
Date: | 2014-05-27 12:50:40 |
Message-ID: | CA+fe79paQSMMVuzwB+3Zc0aFySbKLKmQRdrFmFFWHc8AgiUFDg@mail.gmail.com |
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Lists: | pgsql-sql |
Hi,
Thanks a lot for your clarification and the link about hstore
Regards,
Dariyoosh
On Tue, May 27, 2014 at 2:44 PM, Luca Vernini <lucazeo(at)gmail(dot)com> wrote:
> 2014-05-27 14:39 GMT+02:00 Dariyoosh Dariyoosh <d(dot)sunforums(at)gmail(dot)com>:
>
> > Are arrays in PostgreSQL like associative arrays in Oracle PL/SQL hash
> > tables?, that is an
> > association between key & values? where the integer indexes stand in
> reality
> > for keys?
>
> No, arrays in PostgreSQL are just arrays.
> You can consider the position like a special case of key.. but it is
> not, because it is just a position and cannot be set.
> For key value you can consider hstore:
> http://www.postgresql.org/docs/9.3/static/hstore.html
> Or build your own multi dimension array.
>
> > Thanks in advance,
>
> Regards,
>
> Lucazeo.
>
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