Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id B42B8200B2F for ; Sun, 19 Jun 2016 01:04:09 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id B2A94160A63; Sat, 18 Jun 2016 23:04:09 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id 01BF1160A50 for ; Sun, 19 Jun 2016 01:04:08 +0200 (CEST) Received: (qmail 75341 invoked by uid 500); 18 Jun 2016 23:04:08 -0000 Mailing-List: contact dev-help@phoenix.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@phoenix.apache.org Delivered-To: mailing list dev@phoenix.apache.org Received: (qmail 75330 invoked by uid 99); 18 Jun 2016 23:04:08 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd1-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 18 Jun 2016 23:04:08 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd1-us-west.apache.org (ASF Mail Server at spamd1-us-west.apache.org) with ESMTP id BD564C0E67 for ; Sat, 18 Jun 2016 23:04:07 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd1-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -4.646 X-Spam-Level: X-Spam-Status: No, score=-4.646 tagged_above=-999 required=6.31 tests=[KAM_ASCII_DIVIDERS=0.8, KAM_LAZY_DOMAIN_SECURITY=1, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RP_MATCHES_RCVD=-1.426] autolearn=disabled Received: from mx2-lw-us.apache.org ([10.40.0.8]) by localhost (spamd1-us-west.apache.org [10.40.0.7]) (amavisd-new, port 10024) with ESMTP id THNRUvXnuVzH for ; Sat, 18 Jun 2016 23:04:07 +0000 (UTC) Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by mx2-lw-us.apache.org (ASF Mail Server at mx2-lw-us.apache.org) with SMTP id 9F20F5F4E5 for ; Sat, 18 Jun 2016 23:04:06 +0000 (UTC) Received: (qmail 74091 invoked by uid 99); 18 Jun 2016 23:04:05 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 18 Jun 2016 23:04:05 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 585072C033A for ; Sat, 18 Jun 2016 23:04:05 +0000 (UTC) Date: Sat, 18 Jun 2016 23:04:05 +0000 (UTC) From: "Lars Hofhansl (JIRA)" To: dev@phoenix.incubator.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (PHOENIX-3005) Use DistinctPrefixFilter for DISTINCT index scans MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Sat, 18 Jun 2016 23:04:09 -0000 [ https://issues.apache.org/jira/browse/PHOENIX-3005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15338248#comment-15338248 ] Lars Hofhansl commented on PHOENIX-3005: ---------------------------------------- Can this lead to other bugs? For example we may have a SELECT that would be order preserving, but we scanning along an index? I guess we're lucky that in this case we'd never use an index. (I think) > Use DistinctPrefixFilter for DISTINCT index scans > ------------------------------------------------- > > Key: PHOENIX-3005 > URL: https://issues.apache.org/jira/browse/PHOENIX-3005 > Project: Phoenix > Issue Type: Sub-task > Reporter: Lars Hofhansl > Fix For: 4.8.0 > > > Currently the optimization in PHOENIX-258 is not used for DISTINCT index scans. We should add that as well. -- This message was sent by Atlassian JIRA (v6.3.4#6332)