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 1jyQG2-0002ZR-2e for pgsql-hackers@arkaria.postgresql.org; Thu, 23 Jul 2020 01:42:50 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1jyQFy-0006M4-Sq for pgsql-hackers@arkaria.postgresql.org; Thu, 23 Jul 2020 01:42:46 +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 1jyQFy-0006Lx-Lg for pgsql-hackers@lists.postgresql.org; Thu, 23 Jul 2020 01:42:46 +0000 Received: from wout2-smtp.messagingengine.com ([64.147.123.25]) by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jyQFw-0006TV-9Z for pgsql-hackers@postgresql.org; Thu, 23 Jul 2020 01:42:45 +0000 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.west.internal (Postfix) with ESMTP id 20C43181E; Wed, 22 Jul 2020 21:42:42 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute3.internal (MEProxy); Wed, 22 Jul 2020 21:42:42 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=paquier.xyz; h= date:from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=fm2; bh=/Wj+355S9e4kphNU6ODfMLC/tTA OvRKHLECy2OxZvBA=; b=aN7UyKduYMoq0B3uQU7ggZ/Z1J10yh65xtz8KWe1DWQ KtWBH/SWzGYQ06VmurWi/OIq3SgBMuDx4P0ZZWmUrOn8mLqx0l/1hoREJGvtAztX xR6b2rqEs2q+dtfoUiWxPpKAVOlhnts2M/pygz1hc0VuLij9OxtcVJW5aNKhnKQC EIA/QmTS2gIO+x2T1/Yt1ifw/W57RtNg9xV+scbfye1XYWcwd78Wj48Y5rpBRFm2 Mlt72FJOk93JTkgyIpeyef3OP5o0ixnSdAB9t4sSuVeHJ0nemqQxUzYa6FvAnahq Hs5tyS3180R2CcGH1xL85HZ43JJcP0SmavSwEh3FUwA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc: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=fm3; bh=/Wj+35 5S9e4kphNU6ODfMLC/tTAOvRKHLECy2OxZvBA=; b=M9h0Hk+ffG7RMvFf7d5i07 BfP2cunCeRcnLKNEGzL+aBviDS86BCSgJEoOxpWoz11y6EboyqFe52AMZAFqsNwZ IzaMTzDsd2XWwhWZHLsbNimF4rTlOollmKsiSUoWXScPjBMiloy9VX+eIuN4rLED 06pVFjAhWnxVACbS9sofzI67yUK2HVm80jr3LGF9micC7iMr8gINPzqnuE/02jFU su9jICdLxJj0I+JB4DJfwc2lWdZ2d0gbWoz1R+ukVVgKyGEnWiHwBFkM97bsKgO6 PmPPc3pCBTKQT4drzbGR1EfbCllEfCtSEBA6v+86+PUfrvkks5gW+al78sdNj/yg == X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduiedrhedtgdehudcutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenfg hrlhcuvffnffculdejtddmnecujfgurhepfffhvffukfhfgggtuggjsehgtderredttddv necuhfhrohhmpefoihgthhgrvghlucfrrghquhhivghruceomhhitghhrggvlhesphgrqh huihgvrhdrgiihiieqnecuggftrfgrthhtvghrnhepvdegudeuhfdtueeltedtveejheeh ieevueeigeelteegleejleeiueeiheegvefhnecukfhppeduuddurddutddvrddukedtrd dukeehnecuufhprghmkfhppfgvthifohhrkhepudduuddruddtvddrudektddrudekheen ucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpehmihgthh grvghlsehprghquhhivghrrdighiii X-ME-Proxy: Received: from paquier.xyz (ee0822lan1.rev.em-net.ne.jp [111.102.180.185]) by mail.messagingengine.com (Postfix) with ESMTPA id 81574328005D; Wed, 22 Jul 2020 21:42:39 -0400 (EDT) Date: Thu, 23 Jul 2020 10:42:36 +0900 From: Michael Paquier To: Tom Lane Cc: Alvaro Herrera , Justin Pryzby , Julien Rouhaud , Tomas Vondra , pgsql-hackers@postgresql.org Subject: Re: expose parallel leader in CSV and log_line_prefix Message-ID: <20200723014236.GE26630@paquier.xyz> References: <20200721043325.GC17300@paquier.xyz> <20200722153605.GA961@alvherre.pgsql> <20200723005214.GD26630@paquier.xyz> <90146.1595465944@sss.pgh.pa.us> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="1Ow488MNN9B9o/ov" Content-Disposition: inline In-Reply-To: <90146.1595465944@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk --1Ow488MNN9B9o/ov Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Wed, Jul 22, 2020 at 08:59:04PM -0400, Tom Lane wrote: > Is "NULL" really le mot juste here? If we're talking about text strings, > as the thread title implies (I've not read the patch), then I think you > should say "empty string", because the SQL concept of null doesn't apply. Sorry for the confusion. This part of the thread applies to the open item for v13 related to pg_stat_activity's leader_pid. A different thread should have been spawned for this specific topic, but things are as they are.. -- Michael --1Ow488MNN9B9o/ov Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEG72nH6vTowiyblFKnvQgOdbyQH0FAl8Y6wwACgkQnvQgOdby QH1jNg/9Gd5MrQTM0uRnrp1t29vlESGYb7vqcxsFvGWZHFgW8NuFJyl697hVG5SM Lxyg04pgYcaWiOk5YgQQDB2f/5zESd759bXoQXfIdaxWEWdUYwHBx3LGtuLpDyVO 7MkLO3swmSvf8W8JkCE6xswIhVQZspXalMwmKEuQjp5e4Yt+yaL00mdxgKfNUDBe dttXJqw6QxIhmSAREueVP1F4dDJ/KmlwMBYqcgIJTwY0n1MtApXwb8G56HKfW3Yf 85AkfxTW2meELnp7ezOQqGbFpEQ5Xxbgs8AyNARurDP8xwxkfdT7ZUadNshZx3Fm NCWQbaOvZyeQtl0VNi9va0S4Tj4o9eS2paEZ1nQEc8PVHzum/AMKPvDbS2r5MUy1 5lJAI/scURQxeEpIbHx6UrXOH6UC6yCzJph5lWNO+/9KpPmCKgsdj0aVEGtKCw93 xxJqV6dWy7MGQMvrn1hcWr9kTwhLLp8rJKj7qkAH1Zs+QCHc5eFbrI1NwOhVMVvj 34x/46k5NXcfH2N7GAKZTXJuSoVbzr+JK9fzS2BI5tgLYqt5wFziWioIvzReLfup YrgQdF27q1K2y7X1TMDC4feZbg8gITcXnP5MlCBKdhPqjRbyUfA8TexLoiLKXpD0 qxJrWB1Jlmrtgu5Tl4djknaft71qRvAFsU/3zUE3IgJdcARihQQ= =L7Fb -----END PGP SIGNATURE----- --1Ow488MNN9B9o/ov--