Sender: hannu@hu.tm.ee
Message-ID: <381C3C08.DF980E4@tm.ee>
Date: Sun, 31 Oct 1999 12:54:32 +0000
From: Hannu Krosing <hannu@tm.ee>
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MIME-Version: 1.0
To: Constantin Teodorescu <teo@flex.ro>
Cc: PostgreSQL Interfaces <pgsql-interfaces@postgresql.org>
Subject: Re: [INTERFACES] Case insensitive LIKE ?
References: <381C31A8.34A17B8E@flex.ro> <381C37A3.EC9D5D4D@tm.ee>
	<381C3665.572E14EF@flex.ro>
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Constantin Teodorescu wrote:
> 
> Hannu Krosing wrote:
> >
> > Constantin Teodorescu wrote:
> > >
> > > Is there for PostgreSQL a modifier(parameter) that will make the LIKE
> > > clause case insensitive ?
> >
> > Maybe
> >
> >  select * from t where lower(name) like 'john%';
> 
> Yes, it may work, but probably lower(name) won't work on ODBC->MS Access
> ...

It is much more likely to work than ~* , the case-insensitive regex op.

But to make it use indexes (for the exact case above) you should also create 
index on lower(name).

> I would like to preserve also the SQL commands betwen versions and not
> to fill my program with IF's ..

I doubt that case-insensitive like is in any standard.

Could someone look it up in SQL92 spec ?

------------
Hannu