Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hRdiz-0002cg-Jo for pgsql-advocacy@arkaria.postgresql.org; Fri, 17 May 2019 14:20:41 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1hRdiy-0005FQ-Ci for pgsql-advocacy@arkaria.postgresql.org; Fri, 17 May 2019 14:20:40 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hRdiy-0005CJ-38 for pgsql-advocacy@lists.postgresql.org; Fri, 17 May 2019 14:20:40 +0000 Received: from meldrar.postgresql.org ([2a02:c0:301:0:ffff::31]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hRdiv-0002f2-MC for pgsql-advocacy@lists.postgresql.org; Fri, 17 May 2019 14:20:39 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=postgresql.org; s=20171124; h=Content-Type:In-Reply-To:MIME-Version:Date: Message-ID:From:References:To:Subject:Sender:Reply-To:Cc: Content-Transfer-Encoding:Content-ID:Content-Description; bh=zMxXud/syuTEEB+RRhaE1oC0tjOkoutQz0Q6QiT4s3E=; b=u9TJDq1ZblBPM9FrXKHjp44FCF PGDNpFoDrP7T8LyPkMsHR3ISnT+yMsbappDnlwOWxtuBdK5kJeqT5ovJ4vVpVcPm2fsUvxnOHn/DF 0H2RBYfcpoXkJDlgAmjpEFSE7eVbTBwJda2GaFgM7xq9+0IdbcQguL1i+rvByR757AlsXWHz7N0zI 6LJp4AFqHBoUfnge9jPmX4BBIRWMJ0pxvaUWgldZF035dxqf9ou1n29xDOE6U3OatwuLwgRTjIzZL gqEEAhlBEhbn1AuDUqxGOU1ydz5ecrTSbaPc5ix/FkJq9RPagCOl92p4C8XOp4yxaNxucj3GWnrbo 9KvtAGIQ==; Received: from [2600:8807:c240:dd00:152c:4c9b:4453:86bf] (helo=Ph33r-Retina.local) by meldrar.postgresql.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hRdir-0008M2-Vx; Fri, 17 May 2019 14:20:36 +0000 Subject: Re: PostgreSQL 12: Feature Highlights To: Amit Langote , pgsql-advocacy@lists.postgresql.org References: <830415f7-78ec-ef7b-0f73-0e810ef87f91@postgresql.org> From: "Jonathan S. Katz" Openpgp: preference=signencrypt Autocrypt: addr=jkatz@postgresql.org; keydata= mQINBFtShwABEAC7PNHDUOTYuifpUCk23KqfxdQQkn4nkoxOXRK0+rAj36FiwqGB4TJFuOVZ sDFAEiSlC8Jt4y5Cs7B5tetT8JNd2cs6zp/udMJJDz9d65O9PDpdlMgAmIiTzpLlSdx8FG56 DTksaDv1d8j3cTJPSE4/fWSxqzA7o3Y9UuL7atZPrzfImgpRKs0of7elIHwOa8GucjyhYqcR h60wFBJc2KXqQdDYRTZy43DSnY/0VNc0omiH355fustvpm+m5HjD3w7qZyfN3fpKJpnX1LCF f3MnPHaDGITIYGRCBXvf0UqUtD6OEVWPv2C2gyqWMIpWmZTOgDufltKyIByKBoS9x0PlFkij 04X3KODCngt+N8Ssc9OICc6QSxhjoP48PYPdmiTmkrGuf0LX084wj1xeo1NX7XxZK39F6dTJ DhsIiW0sNS0xMxQHLHG9VLbPjx3SANQBh6BuryPz5ZupW9/TIDmkvprtU/oXfKgtfYm3fxmk EctxbWrEPsFTFPyuMqQu6l+xyQv0s1VLZfjNWaua6H1/gGoIt6kRnn5qMXDVVpijuWkHbv7G ngaQMd258UrrOEHnnjzhQ7jxMWV9D+emxbAtlIxnYvCWlV4IwAQhEHfvudqYaIY3hNWrvQ6H GB2KXoTZYN9g5djm14/5nj1IU5zOcovkjJnKhoo9iStnpFF2cwARAQABtCdKb25hdGhhbiBT LiBLYXR6IDxqa2F0ekBwb3N0Z3Jlc3FsLm9yZz6JAlQEEwEIAD4CGwMFCQeGH4AFCwkIBwIG FQoJCAsCBBYCAwECHgECF4AWIQT6hLaVryv3miBkP/HxBJxynxxlJwUCW1KJJQAKCRDxBJxy nxxlJwjrD/kBgqsW4QpNpTFw7ifRokZV08CCX4huPBJQ91rrv+UEWlEcotFBHVkYyHnpzARl tcZxhJ9CbFxjniH9cOTty5T/O1yolbOHtZSW8Z8aWV6BVEbjMb+BFxSSLm7RnvJdzQbGCZq2 ZZvfVpB6z3EHYph4KDdVKvMFjoLskxmdS1DE0tE3zTxvoQsi24Q+HOS07kUjs6fsu/WICMfz mgO++AWG9Y0CvN0mm4TkujESzyKM9E5irD+leEMIcddl51Aa2c/VMfBXQbRmpHIgUFTmuHQD CnQih+9i3OJAksDg66SP8a7yiXv5mwvyDi1EfTGVKYR2j+pwyjwnC3oIbvDMmB3uTn2JIjnT iZKPVtAcAylXjubFltihQgNyuShdP4W+kBwZizhUFqUVL8Anx+KoytYmJPfMRFLGuK4obXKq a2ZS3k9KB+H+isOx2nFJOsc7V360Zp1DVaNmuiK10TT6QndShSPaqkJqFtCb6r92rZ9sZM/L 3vtCI4Rrl3Pt1MgtENXupS8gZpJnAYS0j5A1PAZ09r6ANoaeMHspF+5J5fOHeEvqphXr36mm a83Vl1t4orPb0+QmmijmlpseDU63M88Aw5p3c4qj7t8Qr2EZ5zrn7/sFn5wOfbs8Nymxafif QCnlV2vg9p0m7vSk/yLJ4PFZvs52FgqAGRCdRn0s2EC99bkCDQRbUocAARAAv8ho/toQ9DG3 j4f9h9n1aRHr2FlviN2Utpy6L8+dfDggO0geilmkGQOolZ2E60gGfye/kUtF9W3NByO4hxDR 9u6qbOXcdqnuA+cc68EfqlWFJrVtYFxt0h4ElWYOYnIezKthriWch/FY70FGrxs3z8UHOHq5 0wBW433eTvZm90WixBiXEt2v1DgW4Vr3ymfO7Aap/IYyPuE4JzgudAuAl0HKPyNEHWHG1dAb jX1RiCw9gknIDWQOF0B4UAaJctWGVcnZ3A2ULwNGMa1P9ZJlBWf1vcj01aiHMU0yQ7JjJiSp vfm9eM0uSLwRdDrJjyl5ZZqVumjdv2SMNQ8GvYRbEMys3GGDSt9zXgfCSUnPnJfYxjzBHRI6 x44Wfsx8S6hWxepOogCJJ/g67Bk9mY8YV4klWIXDJVOL5jnBC09DbsZG81JaE2QxB8Y7W36Z Mroi9XMxg3s805hQAQUvdG/poU8hN8BWdrnTm/+4eQQp7gDY1ePDmGM6bJC+OHOSnFtR/f+7 0zpKJ10cc7cBygGnl1yR3KjhFyAWUFvP4ZGziKCcpMwXZfe9PGuyA/YOubMphxIn3YsK2wrd faKZYX2GMZCZhMMcvx9IpQrxIJgU+VlwXu/O+Lk10VIPcxPJJwmpdI6HzcS8ZgG6IMcC444X XTuLaP8j2mgcMvYak3ScCykAEQEAAYkCPAQYAQgAJhYhBPqEtpWvK/eaIGQ/8fEEnHKfHGUn BQJbUocAAhsMBQkHhh+AAAoJEPEEnHKfHGUnReMP/RA2UhGQj+G4uBshkRLjpRysabdPqgQB dEBk6wYbio88Wg/2/hgY7UzmDDEwX3sZfQDcrI6+vIobI8uqstZID+WgAAa1JLfChMyVQnSy 0zfWMOABXscc5tGuvFRZvJklTissMFjXUwaREEKp4ZikTvJ/62MCjSdtrUhnPLvoTsHTKRKD ichE+b5A54alwsubTijw12O6N22r5IjZiiSZV0u7dsShyKw+7wCSax9fuBoE43NMYf+dnjMK nerAQYUcZWYMnk+EC8RaqYAxv6XZ2tKx1AkGGktwkQIBwrz9IlDSvJ3LWJ2UIIuLRTdngNgg GIL4zzuUa2F56FqskQIuYMaNETk6LYfalBDQ6TVLAcgCPQxp4k4i/PRsZ3lZ2ZhRHRYciOvm kp+I6EfHwllQpYrWs1thluBGqlJSVJgKl0IOFvKLsQ6KKfqzAwh6FxrO5qajp4viNIgtWoFw O5Bp0jgFTbH2OrMWIRfUdUCH1Djbuo65svhNj7FNsQVYzHDI+Nd1I/LOBoPc3UorRMF2M4JV kUR7skOHWUbPTSNUr7qc14NSMY3PKjGeVGAsBVHBPvmRx/Ss2tW/TpJWpxg4pmquFQSXuaYh Yf4FN8Sxy320pcr+FqN8AhZkYJcNY82OTtR5VEKRC/mYcyq61qXIKqngydn79bJjGxHipxyF FmEC Message-ID: <0d9f5783-da9e-1a05-f5bc-4f42bdf742a9@postgresql.org> Date: Fri, 17 May 2019 10:20:29 -0400 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="dT6SBCQVpGmyErePGLn2qkyaIeCPBkW3p" X-Host-Lookup-Failed: Reverse DNS lookup failed for 2600:8807:c240:dd00:152c:4c9b:4453:86bf (failed) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --dT6SBCQVpGmyErePGLn2qkyaIeCPBkW3p Content-Type: multipart/mixed; boundary="CZPIiJ4Yc0VCtqsoDgy2MF1NzsxDZGq0k"; protected-headers="v1" From: "Jonathan S. Katz" To: Amit Langote , pgsql-advocacy@lists.postgresql.org Message-ID: <0d9f5783-da9e-1a05-f5bc-4f42bdf742a9@postgresql.org> Subject: Re: PostgreSQL 12: Feature Highlights References: <830415f7-78ec-ef7b-0f73-0e810ef87f91@postgresql.org> In-Reply-To: --CZPIiJ4Yc0VCtqsoDgy2MF1NzsxDZGq0k Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 5/14/19 10:31 PM, Amit Langote wrote: > Hi Jonathan, >=20 > Thanks for the updated draft. >=20 > On 2019/05/15 11:03, Jonathan S. Katz wrote: >> Without further ado: >> >> # Feature Highlights >> >> 1. Indexing >> >> - Improvements overall performance to standard (B-tree) indexes with >> writes as well as with bloat >> - REINDEX CONCURRENTLY >> - GiST indexes now support covering indexes (INCLUDE clause) >> - SP-GiST indexes now support K-NN queries >> - WAL overhead reduced on GiST, GIN, & SP-GiST index creation >> >> 2. Partitioning Improvements >> >> - Improved partition pruning, which improves performance on queries ov= er >> tables with thousands of partitions that only need to use a few partit= ions >> - Improvements to COPY performance and ATTACH PARTITION >> - Allow foreign keys to reference partitioned tables >=20 > About the 1st item in "Partitioning Improvements", it's not just partit= ion > pruning that's gotten better. How about writing as: >=20 > - Improved performance of processing tables with thousands of partitio= ns > for operations that only need to touch a small number of partitions Thanks, I will use some wording like this: - Improved performance of processing tables with thousands of partitions for operations that only need to use a small number of partitions >=20 > Per discussion upthread, that covers improvements to both partition > pruning and tuple routing. >=20 > Also, could the title "2. Partitioning Improvements" be trimmed down to= > "2. Partitioning", to look like "1. Indexing" for consistency? These are just my rough notes and do not reflect how it will read in the PR itself; however I will keep that in mind. Thanks, Jonathan --CZPIiJ4Yc0VCtqsoDgy2MF1NzsxDZGq0k-- --dT6SBCQVpGmyErePGLn2qkyaIeCPBkW3p Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEE+oS2la8r95ogZD/x8QSccp8cZScFAlzewy4ACgkQ8QSccp8c ZSdb7g/+J3inv5LEUfIidAGjg3HonjkZImjiTyldRPISsj8BAfhRD058eV2OaEUC UU8cYiayOVDVzg1Rfn66b90XDG/9Xz1f3rcEyG+eCZoUkMx+6ys7QrQlMQ2lmrFU 1NTxIZG2U1AHR8i7THNANeEp43nrbc331g+CDyD0thtUun7/RZ+AfT5/hi/mMk81 ThZ+vPDbBFq/hNsnjWRIPFaTFJG/RZiEhKCyrg+8chqwBOa2wRUXX59navLu1pKR 7I3iS/yjjjJkJcEfzRT42/oPCuDrxXoxU7/S6CtY9LxmdsjrYW1Ux9Wdq1ntZEb3 MTyK37KczHHTWz/NL/AvfHl0/ZJc09uXXRYKqu3f6fnrXKb5nqPrrnn8X2Fb/FH4 SsHRDjzkz+KOo0gY5bCGxG4aP6bovpdHuBWM/dxXUyPfW39n1xWCRBwaFu7ILMwj VFTaCZIE4OS1q6Z2edaQJiRT2aMJ9Gyvv3tcfftxYDd7cu/Hxz7ZJS4F7uwWIbeM NI/yl6n042Y77jXEWWdTjE79IRBfH+WuuxgBQRqLNEpYh3kc9exT1IjnuFo/BPcR +DLmQXsq5nJkbn0+M3QYzry0wBVSyWFZVe5awRdeM0SoACXKaAJzYiOq5ZPrPcdC KO8o0sZCeeeRIBkigYsIAkw0nvxj8GGtHI9FgQrnmk3c4PGI9ws= =dQOQ -----END PGP SIGNATURE----- --dT6SBCQVpGmyErePGLn2qkyaIeCPBkW3p--