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 1kQmsQ-0000Fc-8Q for pgsql-hackers@arkaria.postgresql.org; Fri, 09 Oct 2020 07:31:42 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1kQmsP-0008UB-79 for pgsql-hackers@arkaria.postgresql.org; Fri, 09 Oct 2020 07:31:41 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kQmsP-0008U4-0V for pgsql-hackers@lists.postgresql.org; Fri, 09 Oct 2020 07:31:41 +0000 Received: from wforward3-smtp.messagingengine.com ([64.147.123.22]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kQmsM-0006Sp-Rq for pgsql-hackers@postgresql.org; Fri, 09 Oct 2020 07:31:40 +0000 Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailforward.west.internal (Postfix) with ESMTP id A2728489; Fri, 9 Oct 2020 03:31:35 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute1.internal (MEProxy); Fri, 09 Oct 2020 03:31:35 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm1; bh=+CHng9xDjcnvpdasoS2nb+DhkriUN/4wS+OVzUFfz BM=; b=FJPsSoK91mSmwpjH+tppTXHSRlPLp5dy+2pWf7mJhm9tDowmCU3t1+cam 9hKxOZKewn2VRo0yKORp9pmyBvB9btzhn8nmFQZOKyYFntO1pjyL3ROQkhbmHh5C 8TgE338dVSL/G+wv2L8v38eZtrOT4DaFFySMNgYC0FclXnGpJvvPPa0S+MGVrVr0 YovFGpOrXiKInneEv1Afv7Dgyq+eqCpRnOgZznJqRjjGKCjX4muJnvnC3lmA94dS Elhp+qxfufKlJ9QI+FnpxH2p/AK0wAX0mGdg/yxnuzZQJN1altxMp/xsRk/vD3HA 1REpyT8g3o2rnAZIqqw/GVCT6nMnQ== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedujedrhedtgdduvddtucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhepuffvfhfhohfkffgfgggjtgfgsehtjeertddtfeejnecuhfhrohhmpefrvght vghrucfgihhsvghnthhrrghuthcuoehpvghtvghrrdgvihhsvghnthhrrghuthesvdhnug hquhgrughrrghnthdrtghomheqnecuggftrfgrthhtvghrnheptdevgeehtdejvdevvdel jeeuveejjedtleelgfekleefieekjeelgfektdduuedvnecuffhomhgrihhnpedvnhguqh hurggurhgrnhhtrdgtohhmnecukfhppeelfedrvddtvddrvdehvddrleejnecuvehluhhs thgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhepphgvthgvrhdrvghish gvnhhtrhgruhhtsedvnhguqhhurggurhgrnhhtrdgtohhm X-ME-Proxy: Received: from april.pezone.net (p5dcafc61.dip0.t-ipconnect.de [93.202.252.97]) by mail.messagingengine.com (Postfix) with ESMTPA id 38CC13280059; Fri, 9 Oct 2020 03:31:34 -0400 (EDT) Subject: Re: dynamic result sets support in extended query protocol To: Tatsuo Ishii References: <6e747f98-835f-2e05-cde5-86ee444a7140@2ndquadrant.com> <20201008.172354.2074080435553573128.t-ishii@sraoss.co.jp> Cc: pgsql-hackers@postgresql.org From: Peter Eisentraut Organization: 2ndQuadrant Message-ID: Date: Fri, 9 Oct 2020 09:31:33 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20201008.172354.2074080435553573128.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 2020-10-08 10:23, Tatsuo Ishii wrote: > Are you proposing to bump up the protocol version (either major or > minor)? I am asking because it seems you are going to introduce some > new message types. It wouldn't be a new major version. It could either be a new minor version, or it would be guarded by a _pq_ protocol message to enable this functionality from the client, as described. Or both? We haven't done this sort of thing a lot, so some discussion on the details might be necessary. -- Peter Eisentraut http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services