From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Return-Path: Date: Thu, 4 Apr 2019 14:43:48 +0300 From: Konstantin Osipov Subject: Re: [PATCH 07/13] vinyl: propagate tuple comparison hints to read iterator Message-ID: <20190404114348.GD28969@chai> References: <92bf17d61f69c18f907fe9041027ab43df8910f9.1554225074.git.vdavydov.dev@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <92bf17d61f69c18f907fe9041027ab43df8910f9.1554225074.git.vdavydov.dev@gmail.com> To: Vladimir Davydov Cc: tarantool-patches@freelists.org List-ID: * Vladimir Davydov [19/04/02 20:35]: > This patch propagates hints from source iterators (mem, run, txw, cache) > to the read iterator code. Now, source iterators take and return > comparison hints along with statements. The read iterator uses the hints > to speed up tuple comparisons. > > Apart from speeding up lookups, this is also needed for multikey index > support, because multikey indexes will reuse hints to store offsets of > indexed array entries. This is a yet another technical patch, I have no comments about, OK to push. -- Konstantin Osipov, Moscow, Russia, +7 903 626 22 32 http://tarantool.io - www.twitter.com/kostja_osipov