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 3783F18C92 for ; Mon, 7 Dec 2015 23:59:11 +0000 (UTC) Received: (qmail 85639 invoked by uid 500); 7 Dec 2015 23:59:11 -0000 Delivered-To: apmail-hive-issues-archive@hive.apache.org Received: (qmail 85607 invoked by uid 500); 7 Dec 2015 23:59:11 -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 85575 invoked by uid 99); 7 Dec 2015 23:59:11 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 07 Dec 2015 23:59:11 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 0112F2C14F6 for ; Mon, 7 Dec 2015 23:59:11 +0000 (UTC) Date: Mon, 7 Dec 2015 23:59:11 +0000 (UTC) From: "Alan Gates (JIRA)" To: issues@hive.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Assigned] (HIVE-10459) Add materialized views to Hive 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-10459?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Alan Gates reassigned HIVE-10459: --------------------------------- Assignee: Julian Hyde (was: Alan Gates) > Add materialized views to Hive > ------------------------------ > > Key: HIVE-10459 > URL: https://issues.apache.org/jira/browse/HIVE-10459 > Project: Hive > Issue Type: Improvement > Components: Views > Reporter: Alan Gates > Assignee: Julian Hyde > Attachments: HIVE-10459.2.patch, HIVE-10459.patch > > > Materialized views are useful as ways to store either alternate versions of data (e.g. same data, different sort order) or derivatives of data sets (e.g. commonly used aggregates). It is useful to store these as materialized views rather than as tables because it can give the optimizer the ability to understand how data sets are related. -- This message was sent by Atlassian JIRA (v6.3.4#6332)