Re: Indexing question

From: Andreas Kretschmer <akretschmer(at)spamfence(dot)net>
To: pgsql-general(at)postgresql(dot)org, pgsql-sql(at)postgresql(dot)org
Subject: Re: Indexing question
Date: 2012-08-14 17:33:38
Message-ID: 20120814173338.GA15693@tux
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general pgsql-sql

amit sehas <cun23(at)yahoo(dot)com> wrote:

> In SQL, given a table T, with two fields f1, f2,
>
> is it possible to create an index such that the same record is indexed
> in the index, once with field f1 and once with field f2. (I am not
> looking for a compound index in which the key would look like <f1,
> f2>, instead there should be two entries in the index <f1> and <f2>).
>
> we have a few use cases for the above, perhaps we need to alter the
> schema somehow to accommodate the above,

2 separate indexes? One on f1 and one on f2?

Andreas
--
Really, I'm not out to destroy Microsoft. That will just be a completely
unintentional side effect. (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly." (unknown)
Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889°

In response to

Browse pgsql-general by date

  From Date Subject
Next Message Scott Mead 2012-08-14 18:47:56 Re: Visualize database schema
Previous Message David Johnston 2012-08-14 17:19:47 Re: Indexing question

Browse pgsql-sql by date

  From Date Subject
Next Message Alex 2012-08-17 15:58:25 Error: Template Id should be teh identifier of a template - help
Previous Message David Johnston 2012-08-14 17:19:47 Re: Indexing question