| From: | Stephan Szabo <sszabo(at)megazone23(dot)bigpanda(dot)com> |
|---|---|
| To: | Rajesh Kumar Mallah <mallah(at)trade-india(dot)com> |
| Cc: | Thomas Swan <tswan(at)olemiss(dot)edu>, PostgResql SQL Mailing List <pgsql-sql(at)postgresql(dot)org> |
| Subject: | Re: how to get index scan at work? |
| Date: | 2002-04-19 17:12:04 |
| Message-ID: | 20020419100955.A15437-100000@megazone23.bigpanda.com |
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| Thread: | |
| Lists: | pgsql-sql |
On Fri, 19 Apr 2002, Rajesh Kumar Mallah wrote:
> btw i could not create the index the way you suggested
>
> regds
>
> tradein_clients=> CREATE UNIQUE INDEX email_bank_case_insen on
> LOWER(email_bank(email));
> ERROR: DefineIndex: relation "lower" not found
> tradein_clients=>
It actually should be:
create index email_bank_case_insen on email_bank(lower(email));
And that should allow
lower(email)='<string>'
to be indexable.
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