Return-Path: X-Original-To: apmail-hive-dev-archive@www.apache.org Delivered-To: apmail-hive-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 263AB17DA0 for ; Mon, 23 Feb 2015 23:05:12 +0000 (UTC) Received: (qmail 86907 invoked by uid 500); 23 Feb 2015 23:05:11 -0000 Delivered-To: apmail-hive-dev-archive@hive.apache.org Received: (qmail 86832 invoked by uid 500); 23 Feb 2015 23:05:11 -0000 Mailing-List: contact dev-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 dev@hive.apache.org Received: (qmail 86733 invoked by uid 99); 23 Feb 2015 23:05:11 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 23 Feb 2015 23:05:11 +0000 Date: Mon, 23 Feb 2015 23:05:11 +0000 (UTC) From: "Prasanth Jayachandran (JIRA)" To: dev@hive.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (HIVE-9757) LLAP: Reuse string dictionaries per column per stripe when processing row groups MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Prasanth Jayachandran created HIVE-9757: ------------------------------------------- Summary: LLAP: Reuse string dictionaries per column per stripe when processing row groups Key: HIVE-9757 URL: https://issues.apache.org/jira/browse/HIVE-9757 Project: Hive Issue Type: Sub-task Affects Versions: llap Reporter: Prasanth Jayachandran Assignee: Prasanth Jayachandran Fix For: llap Dictionary streams are cached by low level cache. When creating column vectors from streams we create dictionary for every row group that we process. We should add per query cache to cache the deserialized representation of dictionary per stripe per column. -- This message was sent by Atlassian JIRA (v6.3.4#6332)