Return-Path: X-Original-To: apmail-drill-dev-archive@www.apache.org Delivered-To: apmail-drill-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 5FE8010F4A for ; Wed, 11 Feb 2015 07:14:12 +0000 (UTC) Received: (qmail 32473 invoked by uid 500); 11 Feb 2015 07:14:12 -0000 Delivered-To: apmail-drill-dev-archive@drill.apache.org Received: (qmail 32400 invoked by uid 500); 11 Feb 2015 07:14:12 -0000 Mailing-List: contact dev-help@drill.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@drill.apache.org Delivered-To: mailing list dev@drill.apache.org Received: (qmail 32349 invoked by uid 99); 11 Feb 2015 07:14:12 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 11 Feb 2015 07:14:12 +0000 Date: Wed, 11 Feb 2015 07:14:12 +0000 (UTC) From: "Yuliya Feldman (JIRA)" To: dev@drill.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (DRILL-2209) Save on CPU cycles by adding Project with column that has hash calculated MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Yuliya Feldman created DRILL-2209: ------------------------------------- Summary: Save on CPU cycles by adding Project with column that has hash calculated Key: DRILL-2209 URL: https://issues.apache.org/jira/browse/DRILL-2209 Project: Apache Drill Issue Type: Improvement Components: Execution - Flow, Query Planning & Optimization Reporter: Yuliya Feldman Assignee: Yuliya Feldman Related to DRILL-133. Wrapping HashToRandomExhcnage and/or LocalExchange with Project operator with additional column that represents hash function of column(s) we are hashing on. This is to save CPU cycles and not recalculate hash every time -- This message was sent by Atlassian JIRA (v6.3.4#6332)