Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id 25FA3200BEF for ; Wed, 21 Dec 2016 06:01:20 +0100 (CET) Received: by cust-asf.ponee.io (Postfix) id 2480F160B33; Wed, 21 Dec 2016 05:01:20 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id 6C7AD160B29 for ; Wed, 21 Dec 2016 06:01:19 +0100 (CET) Received: (qmail 95514 invoked by uid 500); 21 Dec 2016 05:01:13 -0000 Mailing-List: contact user-help@hive.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hive.apache.org Delivered-To: mailing list user@hive.apache.org Received: (qmail 95504 invoked by uid 99); 21 Dec 2016 05:01:13 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd1-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 21 Dec 2016 05:01:13 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd1-us-west.apache.org (ASF Mail Server at spamd1-us-west.apache.org) with ESMTP id 8F9DDCD373 for ; Wed, 21 Dec 2016 05:01:12 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd1-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -1.82 X-Spam-Level: X-Spam-Status: No, score=-1.82 tagged_above=-999 required=6.31 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=2, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RP_MATCHES_RCVD=-2.999, SPF_PASS=-0.001] autolearn=disabled Authentication-Results: spamd1-us-west.apache.org (amavisd-new); dkim=pass (2048-bit key) header.d=yahoo.com Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd1-us-west.apache.org [10.40.0.7]) (amavisd-new, port 10024) with ESMTP id K2tdQd4buPsv for ; Wed, 21 Dec 2016 05:01:10 +0000 (UTC) Received: from nm44-vm3.bullet.mail.bf1.yahoo.com (nm44-vm3.bullet.mail.bf1.yahoo.com [216.109.114.254]) by mx1-lw-eu.apache.org (ASF Mail Server at mx1-lw-eu.apache.org) with ESMTPS id BCDF75F39F for ; Wed, 21 Dec 2016 05:01:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1482296463; bh=NoxlIdyqEndHKwiaw10EGyfaouagjj+Nj2BixGfd1os=; h=Date:From:Reply-To:To:Subject:References:From:Subject; b=kEiDodKl/JgBY5VsrkeXrZeiBIXSpmpxa7oAECdo1JSI/6ytbLfzHr04wKDzMy2RS8DqqDZBi5OC7Ym6P3cR0564/jvXHl9IJYff5uPElpHKWGlvU0iHa5F0Z60XDJPg7K2tZw5JV8zpkZ4Yb/VztAujz+sCZ1goX00L4Lq1J2+ATo3UDaivBNHg5kBgk1XWvOOmdCy8IuJeVYiJ5rtJX19vc3m3IoLTxgxxarLaDlwrPuFomkiCQjDr6MJE7ieSkBdHHGZmq793+T8c1cyA1Zi63DpGceVXFz69OdNL7Aw8MKfNNSA3HwumwejMWVwwkSGt15Ni9gNxuW9fpxJfQg== Received: from [66.196.81.170] by nm44.bullet.mail.bf1.yahoo.com with NNFMP; 21 Dec 2016 05:01:03 -0000 Received: from [98.139.212.245] by tm16.bullet.mail.bf1.yahoo.com with NNFMP; 21 Dec 2016 05:01:03 -0000 Received: from [127.0.0.1] by omp1054.mail.bf1.yahoo.com with NNFMP; 21 Dec 2016 05:01:03 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 303995.99118.bm@omp1054.mail.bf1.yahoo.com X-YMail-OSG: VUw5MQoVM1me0ZiiTcW.ljdghkLxWUHWKXe6Qje49jpjPr0iz2sTsn4Hfx8d1Yg cpCiEdJbSJo15_PMq4SA4bYNQTMbhYht7eb48Du.lRMu5nJl6PC7J7J.9I0rL5z8g._a.ZP6l_B5 7vfBH4NuosLvxf_lNXUW7XRlL2o.ANixSjwNJ78exV1r45otyy_pZ.K2N0IMQwpr1Qd9gCffWMSw LO5Ph8gjWuPxAV8HreETyHxQjR7OjlQ2gXPPaMT0CR87EVutvmNtNCMyF1_rI0OSAnpNe3He.BuB nrLBTlAMbv84eOjjJUPGwkgzas9a2pmJXucWZjoyU6Hk2QKSae9hXDygsR6EntOFFBSsMphj7.QN KwH.dq3mzyjS_vwGdrEccx30rPx7nzs2kwPpRxe0TETl7nzNhLSgGpslRdo_C.it0vZBu214iQNu 5uBzdpYs5ccQH_bQNzbE.SpQgt.L9HUVPIMR3HJw2dRzAj3tX1a.CYS6e0LdkaR4B1YoH.godz4B .2e7t8uza8_H464U_iE0- Received: from jws400041.mail.bf2.yahoo.com by sendmailws140.mail.bf1.yahoo.com; Wed, 21 Dec 2016 05:01:02 +0000; 1482296462.877 Date: Wed, 21 Dec 2016 05:01:02 +0000 (UTC) From: Robert Grandl Reply-To: Robert Grandl To: User , Dev Message-ID: <1710227644.69847.1482296462698@mail.yahoo.com> Subject: Hive statistics MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_69846_1766916686.1482296462697" References: <1710227644.69847.1482296462698.ref@mail.yahoo.com> archived-at: Wed, 21 Dec 2016 05:01:20 -0000 ------=_Part_69846_1766916686.1482296462697 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi guys, I am wondering if it's possible to estimate the number of distinct keys and= their distribution in a way or another.=20 More concretely, for every stage, it is possible to determine the number of= distinct keys and for each key the number of values=C2=A0 before the data = is actually processed? Thanks,Robert ------=_Part_69846_1766916686.1482296462697 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit
Hi guys,

I am wondering if it's possible to estimate the number of distinct keys and their distribution in a way or another.

More concretely, for every stage, it is possible to determine the number of distinct keys and for each key the number of values  before the data is actually processed?

Thanks,
Robert

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