Return-Path: 
 <dev-return-58993-apmail-hive-dev-archive=hive.apache.org@hive.apache.org>
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 2F6231091C
	for <apmail-hive-dev-archive@www.apache.org>;
 Sat, 10 Aug 2013 23:27:49 +0000 (UTC)
Received: (qmail 23551 invoked by uid 500); 10 Aug 2013 23:27:48 -0000
Delivered-To: apmail-hive-dev-archive@hive.apache.org
Received: (qmail 23504 invoked by uid 500); 10 Aug 2013 23:27:48 -0000
Mailing-List: contact dev-help@hive.apache.org; run by ezmlm
Precedence: bulk
List-Help: <mailto:dev-help@hive.apache.org>
List-Unsubscribe: <mailto:dev-unsubscribe@hive.apache.org>
List-Post: <mailto:dev@hive.apache.org>
List-Id: <dev.hive.apache.org>
Reply-To: dev@hive.apache.org
Delivered-To: mailing list dev@hive.apache.org
Received: (qmail 23495 invoked by uid 500); 10 Aug 2013 23:27:48 -0000
Delivered-To: apmail-hadoop-hive-dev@hadoop.apache.org
Received: (qmail 23492 invoked by uid 99); 10 Aug 2013 23:27:48 -0000
Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28)
    by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 10 Aug 2013 23:27:48 +0000
Date: Sat, 10 Aug 2013 23:27:48 +0000 (UTC)
From: "Edward Capriolo (JIRA)" <jira@apache.org>
To: hive-dev@hadoop.apache.org
Message-ID: <JIRA.12648530.1369093925515.41013.1376177268657@arcas>
In-Reply-To: <JIRA.12648530.1369093925515@arcas>
References: <JIRA.12648530.1369093925515@arcas>
Subject: [jira] [Commented] (HIVE-4579) Create a SARG interface for
 RecordReaders
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-4579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13736110#comment-13736110 ] 

Edward Capriolo commented on HIVE-4579:
---------------------------------------

{code}
+    private final Stack<ExpressionTree> currentTree =
+        new Stack<ExpressionTree>();
{code}
Can you use Deque and ArrayDeque here instead.
                
> Create a SARG interface for RecordReaders
> -----------------------------------------
>
>                 Key: HIVE-4579
>                 URL: https://issues.apache.org/jira/browse/HIVE-4579
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>         Attachments: h-4579.patch, HIVE-4579.D11409.1.patch, HIVE-4579.D11409.2.patch, pushdown.pdf
>
>
> I think we should create a SARG (http://en.wikipedia.org/wiki/Sargable) interface for RecordReaders. For a first pass, I'll create an API that uses the value stored in hive.io.filter.expr.serialized.
> The desire is to define an simpler interface that the direct AST expression that is provided by hive.io.filter.expr.serialized so that the code to evaluate expressions can be generalized instead of put inside a particular RecordReader.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira