Return-Path: X-Original-To: apmail-spark-issues-archive@minotaur.apache.org Delivered-To: apmail-spark-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 2DB4C1985A for ; Wed, 9 Mar 2016 23:48:46 +0000 (UTC) Received: (qmail 13679 invoked by uid 500); 9 Mar 2016 23:48:41 -0000 Delivered-To: apmail-spark-issues-archive@spark.apache.org Received: (qmail 13622 invoked by uid 500); 9 Mar 2016 23:48:41 -0000 Mailing-List: contact issues-help@spark.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list issues@spark.apache.org Received: (qmail 13527 invoked by uid 99); 9 Mar 2016 23:48:41 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 09 Mar 2016 23:48:41 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id D19192C1F55 for ; Wed, 9 Mar 2016 23:48:40 +0000 (UTC) Date: Wed, 9 Mar 2016 23:48:40 +0000 (UTC) From: "Apache Spark (JIRA)" To: issues@spark.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Assigned] (SPARK-13789) Infer additional constraints from attribute equality 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/SPARK-13789?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Apache Spark reassigned SPARK-13789: ------------------------------------ Assignee: Apache Spark > Infer additional constraints from attribute equality > ---------------------------------------------------- > > Key: SPARK-13789 > URL: https://issues.apache.org/jira/browse/SPARK-13789 > Project: Spark > Issue Type: Sub-task > Components: SQL > Reporter: Sameer Agarwal > Assignee: Apache Spark > > We should be able to infer additional set of data constraints based on attribute equality. For e.g., if an operator has constraints of the form (`a = 5`, `a = b`), we should be able to infer an additional constraint of the form `b = 5` > cc [~nongli] -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org For additional commands, e-mail: issues-help@spark.apache.org