From dev-return-41919-archive-asf-public=cust-asf.ponee.io@ignite.apache.org Fri Nov 16 19:08:06 2018 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by mx-eu-01.ponee.io (Postfix) with SMTP id 8F879180679 for ; Fri, 16 Nov 2018 19:08:05 +0100 (CET) Received: (qmail 12873 invoked by uid 500); 16 Nov 2018 18:08:04 -0000 Mailing-List: contact dev-help@ignite.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@ignite.apache.org Delivered-To: mailing list dev@ignite.apache.org Received: (qmail 12858 invoked by uid 99); 16 Nov 2018 18:08:04 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd3-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 16 Nov 2018 18:08:04 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd3-us-west.apache.org (ASF Mail Server at spamd3-us-west.apache.org) with ESMTP id E190718244E for ; Fri, 16 Nov 2018 18:08:03 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd3-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -110.301 X-Spam-Level: X-Spam-Status: No, score=-110.301 tagged_above=-999 required=6.31 tests=[ENV_AND_HDR_SPF_MATCH=-0.5, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, USER_IN_DEF_SPF_WL=-7.5, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd3-us-west.apache.org [10.40.0.10]) (amavisd-new, port 10024) with ESMTP id NKCsquMz-1dk for ; Fri, 16 Nov 2018 18:08:02 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-us.apache.org (ASF Mail Server at mx1-lw-us.apache.org) with ESMTP id 3EA235F5DF for ; Fri, 16 Nov 2018 18:08:02 +0000 (UTC) Received: from jira-lw-us.apache.org (unknown [207.244.88.139]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id 4828CE2638 for ; Fri, 16 Nov 2018 18:08:01 +0000 (UTC) Received: from jira-lw-us.apache.org (localhost [127.0.0.1]) by jira-lw-us.apache.org (ASF Mail Server at jira-lw-us.apache.org) with ESMTP id 8BEE023FA7 for ; Fri, 16 Nov 2018 18:08:00 +0000 (UTC) Date: Fri, 16 Nov 2018 18:08:00 +0000 (UTC) From: "Vladimir Ozerov (JIRA)" To: dev@ignite.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (IGNITE-10311) SQL: Create system view with query co-location plans MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Vladimir Ozerov created IGNITE-10311: ---------------------------------------- Summary: SQL: Create system view with query co-location plans Key: IGNITE-10311 URL: https://issues.apache.org/jira/browse/IGNITE-10311 Project: Ignite Issue Type: Task Components: sql Reporter: Vladimir Ozerov Fix For: 2.8 It is very important to understand model of distributed execution for certain queries for performance tuning. Let's create a syhstem view which will iterate over cached two-step queries and print their plans in table form. Approximate structure (very raw): {code} CREATE VIEW sql_query_plan ( plan_id, // Unique plan ID (node ID + unique local ID) sql, // Plain text sql_hash. // May be more convenient that query_id flags // Same query with different flags may result in different plans ) CREATE VIEW sql_query_plan_fragments ( plan_id, // Same plan ID order, // Together with plan_id it forms PK action, // What is this - "reduce", "skip reduce", "map", etc. (may be we will need multiple columns) sql, // SQL of the fragment (if applicable) ) {code} Next user may list cached plans, select interesting, and query plan fragments view. We need to analyze other vendors to better understand what to show in views. -- This message was sent by Atlassian JIRA (v7.6.3#76005)