Return-Path: X-Original-To: apmail-hive-issues-archive@minotaur.apache.org Delivered-To: apmail-hive-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id BFC9319C40 for ; Thu, 7 Apr 2016 23:30:26 +0000 (UTC) Received: (qmail 44648 invoked by uid 500); 7 Apr 2016 23:30:26 -0000 Delivered-To: apmail-hive-issues-archive@hive.apache.org Received: (qmail 44455 invoked by uid 500); 7 Apr 2016 23:30:26 -0000 Mailing-List: contact issues-help@hive.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hive.apache.org Delivered-To: mailing list issues@hive.apache.org Received: (qmail 44440 invoked by uid 99); 7 Apr 2016 23:30:26 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 07 Apr 2016 23:30:26 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id E0E5D2C1F6B for ; Thu, 7 Apr 2016 23:30:25 +0000 (UTC) Date: Thu, 7 Apr 2016 23:30:25 +0000 (UTC) From: "Sergey Shelukhin (JIRA)" To: issues@hive.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HIVE-9660) store end offset of compressed data for RG in RowIndex in ORC MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/HIVE-9660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Sergey Shelukhin updated HIVE-9660: ----------------------------------- Attachment: HIVE-9660.07.patch Addressing review comments. The biggest change is the index to kind change for lengths tracking > store end offset of compressed data for RG in RowIndex in ORC > ------------------------------------------------------------- > > Key: HIVE-9660 > URL: https://issues.apache.org/jira/browse/HIVE-9660 > Project: Hive > Issue Type: Bug > Reporter: Sergey Shelukhin > Assignee: Sergey Shelukhin > Attachments: HIVE-9660.01.patch, HIVE-9660.02.patch, HIVE-9660.03.patch, HIVE-9660.04.patch, HIVE-9660.05.patch, HIVE-9660.06.patch, HIVE-9660.07.patch, HIVE-9660.patch, HIVE-9660.patch > > > Right now the end offset is estimated, which in some cases results in tons of extra data being read. > We can add a separate array to RowIndex (positions_v2?) that stores number of compressed buffers for each RG, or end offset, or something, to remove this estimation magic -- This message was sent by Atlassian JIRA (v6.3.4#6332)