Hi all,
Not sure if this is useful, but it might be good to file and reference
somewhere.
Regards and best wishes,
Justin Clift
Original Message
Subject: Re: [GENERAL] Unisersal B-Tree
Date: Mon, 30 Apr 2001 17:59:49 +0200
From: Jörg Schulz [EMAIL PROTECTED]
Organization:
... Think of a query like this:
select a,b,c from table where ( amin_a and amax_a ) and ( bmin_b and bmax_b )
In a conventional implementation you have two indexes on attributes a and b.
But to run this query the database engine profits only from one index. It has
to run through all the