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 1lbkU5-0003m3-59 for pgsql-hackers@arkaria.postgresql.org; Wed, 28 Apr 2021 13:44:09 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1lbkU3-0005x4-6J for pgsql-hackers@arkaria.postgresql.org; Wed, 28 Apr 2021 13:44:07 +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 1lbkU2-0005wx-Vj for pgsql-hackers@lists.postgresql.org; Wed, 28 Apr 2021 13:44:06 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by magus.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lbkU0-0004cw-Mi for pgsql-hackers@postgresql.org; Wed, 28 Apr 2021 13:44:06 +0000 Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1]) by sss.pgh.pa.us (8.15.2/8.15.2) with ESMTP id 13SDhwOE2794510; Wed, 28 Apr 2021 09:43:58 -0400 From: Tom Lane To: Thomas Munro cc: Peter Eisentraut , David Steele , Pavel Stehule , Petr Fedorov , pgsql-hackers Subject: Re: Since '2001-09-09 01:46:40'::timestamp microseconds are lost when extracting epoch In-reply-to: References: <1551357.1599435992@sss.pgh.pa.us> <097a4242-0748-98e3-06ab-ded1d366cd76@2ndquadrant.com> <1893468.1599658711@sss.pgh.pa.us> <38fc499a-ae52-efb6-aad6-82f812d6782d@2ndquadrant.com> <20200917055327.GU2873@paquier.xyz> <20200930071543.GL1996@paquier.xyz> <2fb99632-9302-6509-78ce-3aaed3fd7f40@2ndquadrant.com> <3ff4be02-1e2b-564f-9b53-3dc561da8218@pgmasters.net> <3013402.1615829712@sss.pgh.pa.us> <8fae8673-0d5b-12d9-7342-daed0d590594@2ndquadrant.com> <901bcfb8-36c8-27b2-b148-042392992eeb@2ndquadrant.com> <4158031.1616184417@sss.pgh.pa.us> <75db3efe-8023-58ef-9ee4-8a6a3101c7ca@2ndquadrant.com> <226163.1618847845@sss.pgh.pa.us> <1197050.1619123213@sss.pgh.pa.us> <2658907.1! 619538982@sss.pgh.pa.us> Comments: In-reply-to Thomas Munro message dated "Wed, 28 Apr 2021 17:43:27 +1200" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <2794508.1619617438.1@sss.pgh.pa.us> Date: Wed, 28 Apr 2021 09:43:58 -0400 Message-ID: <2794509.1619617438@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk Thomas Munro writes: > On Wed, Apr 28, 2021 at 3:56 AM Tom Lane wrote: >> Of course Wikipedia has been known to contain errors, but now >> I'm inclined to think I blew this. Anyone want to check my work? > I tried a couple of examples not from Wikipedia. ... Thanks for checking! I'll go adjust the documentation. regards, tom lane