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 1naSrq-0007uy-0o for pgsql-general@arkaria.postgresql.org; Sat, 02 Apr 2022 01:47:54 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1naSro-0002nN-JF for pgsql-general@arkaria.postgresql.org; Sat, 02 Apr 2022 01:47:52 +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 1naSrn-0002nE-7W for pgsql-general@lists.postgresql.org; Sat, 02 Apr 2022 01:47:52 +0000 Received: from out5-smtp.messagingengine.com ([66.111.4.29]) by makus.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1naSri-0004Yr-Tv for pgsql-general@lists.postgresql.org; Sat, 02 Apr 2022 01:47:50 +0000 Received: from compute2.internal (compute2.nyi.internal [10.202.2.46]) by mailout.nyi.internal (Postfix) with ESMTP id 1CDFE5C01D6; Fri, 1 Apr 2022 21:47:45 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute2.internal (MEProxy); Fri, 01 Apr 2022 21:47:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=aklaver.com; h= cc:content-transfer-encoding:content-type:date:date:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to; s=fm3; bh=89h7EujVPmLvoS R4sw458boumQnp7ZICVQ/XWhzbXqw=; b=QEU2JGSGWgc/dUS46OF12h5VE/IeeW pRxhcBHssHYmVA73SyXjFrDqYfNWTl2Xvgg1e3uyjLhQPjsnYSrRSpZpI4rXD1mA Nfr38t+qzkOLCV4rwyvq+isXDkQkbYXZ6zmf5PbFj32NIH0V2FGA2IlKnjvD4f2d WlAGTjj3rj9hClQVN+Fpl/0b14hKWwHQ1Y8peq+MypAlQLNF6UB9tlYnC1vniV7X akQRbD21q2qFRoAUBGaBd3EZn/G29gX0zCkyFsgy5bKORPkBpaFmGgGulYi8GgYl JQeTlDoc2sNszg9n1rdchogMDwm21BzaRhswyYFMd1hLZ8eIZ1bVRXcQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:date:from:from:in-reply-to:in-reply-to:message-id :mime-version:references:reply-to:sender:subject:subject:to:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm3; bh=89h7EujVPmLvoSR4sw458boumQnp7ZICVQ/XWhzbXqw=; b=ITYE1NlP 6UtwprXdU9gr+fvIUC6gYWq4/jgcECYWT2D0to92CS+rm+E6Aq1XuUsERfJqQzVo W67mZAMN1kjS5/zZdGJOkCmRSdrrSsRNwGbazDI6LV5FaTGCuhvQljqAm0rMyqtL RAGZHbaylPV032QchrkZEFYlptXx0yMG06GUtslUdYVOZqxnoHG3gMQaygPjIkCd hDJD6NPb4gM+/cUEZCkUN8a+5oDj5rYh/+D/nRmQQgEiMjxDwaE51nLxFcbjLJ/D wY0lFyNXthlDDfeFLnqw0T74T0V0l2IGlG9sQRZiC7042r+Vwee5Dt21tIlnuzu7 1rDlpSob67mUOw== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvvddrudeijedggeefucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhepkfffgggfuffvfhfhjggtgfesthekredttdefjeenucfhrhhomheptegurhhi rghnucfmlhgrvhgvrhcuoegrughrihgrnhdrkhhlrghvvghrsegrkhhlrghvvghrrdgtoh hmqeenucggtffrrghtthgvrhhnpedugfeuleegveffhfegleejhefhtedtgeeileeggfeh fefffeevgeejtdeutefftdenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmh grihhlfhhrohhmpegrughrihgrnhdrkhhlrghvvghrsegrkhhlrghvvghrrdgtohhm X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 1 Apr 2022 21:47:43 -0400 (EDT) Message-ID: <3ad78742-7ce3-f2cd-e7c4-84a6e8e30ae5@aklaver.com> Date: Fri, 1 Apr 2022 18:47:42 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Subject: Re: How long does iteration over 4-5 million rows usually take? Content-Language: en-US To: Shaozhong SHI , pgsql-general References: From: Adrian Klaver In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk On 4/1/22 18:34, Shaozhong SHI wrote: > > I have a script running to iterate over 4-5 million rows.  It keeps > showing up in red in PgAdmin.  It remains active. > > How long does iteration over 4-5 million rows usually take? Given that there is no real information provided in the problem description there is no chance for an answer more detailed then; as long as it takes. > > Regards, > > David -- Adrian Klaver adrian.klaver@aklaver.com