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To: aoki@postgres.Berkeley.EDU (Paul M. Aoki)
Cc: Mark Metson <gpurdy@fox.nstn.ns.ca>, postgres@postgres.Berkeley.EDU
Subject: Re: Use by a Business 
In-Reply-To: Your message of "Mon, 30 May 94 12:40:03 PDT."
             <199405301940.MAA19840@faerie.CS.Berkeley.EDU> 
Date: Mon, 30 May 94 12:47:38 -0700
From: Michael Ubell <michael@montage.com>
Resent-To: postgres-redist@postgres.Berkeley.EDU
Resent-Date: Mon, 30 May 94 18:37:30 -0700
Resent-XMts: smtp

>  it does do page-level locking for b-trees 
>but not for r-trees and heaps.

Doing page locking on b-trees but not on the underlying heap does not really
buy you anything since if you do an update the whole heap table is locked so
things will be single threaded no matter what you do in the b-tree.

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