Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kNqRg-0003vs-0d for pgsql-hackers@arkaria.postgresql.org; Thu, 01 Oct 2020 04:43:56 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1kNqRe-0007bd-UK for pgsql-hackers@arkaria.postgresql.org; Thu, 01 Oct 2020 04:43:54 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kNqRe-0007bS-Nh for pgsql-hackers@lists.postgresql.org; Thu, 01 Oct 2020 04:43:54 +0000 Received: from oss.nttdata.com ([49.212.34.109]) by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kNqRc-0001Vx-Kc for pgsql-hackers@postgresql.org; Thu, 01 Oct 2020 04:43:53 +0000 Received: from hnk.local (p1295030-ipngn4902funabasi.chiba.ocn.ne.jp [153.166.85.30]) by oss.nttdata.com (Postfix) with ESMTPSA id 38AFC6237F; Thu, 1 Oct 2020 13:43:50 +0900 (JST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.102.3 at oss.nttdata.com Subject: Re: Implementing Incremental View Maintenance To: Tatsuo Ishii , michael@paquier.xyz Cc: thomas.munro@gmail.com, nagata@sraoss.co.jp, pgsql-hackers@postgresql.org, takuma.hoshiai@gmail.com, amitlangote09@gmail.com, alvherre@2ndquadrant.com, kgrittn@gmail.com References: <20200917.094245.433560970731138050.t-ishii@sraoss.co.jp> <20201001033426.GB8130@paquier.xyz> <20201001.130351.116296702183559169.t-ishii@sraoss.co.jp> From: Fujii Masao Message-ID: <497aa257-ecad-e439-39b3-944ab08d6fb9@oss.nttdata.com> Date: Thu, 1 Oct 2020 13:43:49 +0900 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: <20201001.130351.116296702183559169.t-ishii@sraoss.co.jp> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk On 2020/10/01 13:03, Tatsuo Ishii wrote: >> On Thu, Sep 17, 2020 at 09:42:45AM +0900, Tatsuo Ishii wrote: >>> I am asking because these patch sets are now getting closer to >>> committable state in my opinion, and if there's someting wrong, it >>> should be fixed soon so that these patches are getting into the master >>> branch. >>> >>> I think this feature has been long awaited by users and merging the >>> patches should be a benefit for them. >> >> I don't have much thoughts to offer about that, but this patch is >> failing to apply, so a rebase is at least necessary. > > Yes. I think he is going to post a new patch (possibly with > enhancements) soon. When I glanced the doc patch (i.e., 0012), I found some typos. + CRATE INCREMENTAL MATERIALIZED VIEW, for example: Typo: CRATE should be CREATE ? + with __ivm_ and they contains information required Typo: contains should be contain ? + For exmaple, here are two materialized views based on the same view Typo: exmaple should be example ? + maintenance can be lager than REFRESH MATERIALIZED VIEW Typo: lager should be larger ? +postgres=# SELECt * FROM m; -- automatically updated Typo: SELECt should be SELECT ? Regards, -- Fujii Masao Advanced Computing Technology Center Research and Development Headquarters NTT DATA CORPORATION