From issues-return-179386-archive-asf-public=cust-asf.ponee.io@hive.apache.org Tue Feb 18 12:00:04 2020 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [207.244.88.153]) by mx-eu-01.ponee.io (Postfix) with SMTP id 9F94818060E for ; Tue, 18 Feb 2020 13:00:03 +0100 (CET) Received: (qmail 93855 invoked by uid 500); 18 Feb 2020 12:00:02 -0000 Mailing-List: contact issues-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 issues@hive.apache.org Received: (qmail 93845 invoked by uid 99); 18 Feb 2020 12:00:02 -0000 Received: from mailrelay1-us-west.apache.org (HELO mailrelay1-us-west.apache.org) (209.188.14.139) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 18 Feb 2020 12:00:02 +0000 Received: from jira-he-de.apache.org (static.172.67.40.188.clients.your-server.de [188.40.67.172]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id 2CE11E3177 for ; Tue, 18 Feb 2020 12:00:01 +0000 (UTC) Received: from jira-he-de.apache.org (localhost.localdomain [127.0.0.1]) by jira-he-de.apache.org (ASF Mail Server at jira-he-de.apache.org) with ESMTP id 3C14A78033A for ; Tue, 18 Feb 2020 12:00:00 +0000 (UTC) Date: Tue, 18 Feb 2020 12:00:00 +0000 (UTC) From: "Hive QA (Jira)" To: issues@hive.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HIVE-22893) Enhance data size estimation for fields computed by UDFs 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-22893?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17039021#comment-17039021 ] Hive QA commented on HIVE-22893: -------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || || || || || {color:brown} Prechecks {color} || | {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 1s{color} | {color:green} The patch does not contain any @author tags. {color} | || || || || {color:brown} master Compile Tests {color} || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 1m 47s{color} | {color:blue} Maven dependency ordering for branch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m 59s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 35s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m 9s{color} | {color:green} master passed {color} | | {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m 35s{color} | {color:blue} common in master has 63 extant Findbugs warnings. {color} | | {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 3m 56s{color} | {color:blue} ql in master has 1534 extant Findbugs warnings. {color} | | {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m 27s{color} | {color:blue} contrib in master has 11 extant Findbugs warnings. {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 25s{color} | {color:green} master passed {color} | || || || || {color:brown} Patch Compile Tests {color} || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 29s{color} | {color:blue} Maven dependency ordering for patch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 2m 0s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 39s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 39s{color} | {color:green} the patch passed {color} | | {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 44s{color} | {color:red} ql: The patch generated 6 new + 127 unchanged - 0 fixed = 133 total (was 127) {color} | | {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m 0s{color} | {color:red} The patch has 1 line(s) that end in whitespace. Use git apply --whitespace=fix <>. Refer https://git-scm.com/docs/git-apply {color} | | {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 4m 2s{color} | {color:red} ql generated 1 new + 1534 unchanged - 0 fixed = 1535 total (was 1534) {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 25s{color} | {color:green} the patch passed {color} | || || || || {color:brown} Other Tests {color} || | {color:red}-1{color} | {color:red} asflicense {color} | {color:red} 0m 16s{color} | {color:red} The patch generated 1 ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black} 32m 23s{color} | {color:black} {color} | \\ \\ || Reason || Tests || | FindBugs | module:ql | | | Dead store to start in org.apache.hadoop.hive.ql.udf.UDFSubstr$SubStrStatEstimator.estimate(List) At UDFSubstr.java:org.apache.hadoop.hive.ql.udf.UDFSubstr$SubStrStatEstimator.estimate(List) At UDFSubstr.java:[line 157] | \\ \\ || Subsystem || Report/Notes || | Optional Tests | asflicense javac javadoc findbugs checkstyle compile | | uname | Linux hiveptest-server-upstream 3.16.0-4-amd64 #1 SMP Debian 3.16.43-2+deb8u5 (2017-09-19) x86_64 GNU/Linux | | Build tool | maven | | Personality | /data/hiveptest/working/yetus_PreCommit-HIVE-Build-20711/dev-support/hive-personality.sh | | git revision | master / 249e9b6 | | Default Java | 1.8.0_111 | | findbugs | v3.0.1 | | checkstyle | http://104.198.109.242/logs//PreCommit-HIVE-Build-20711/yetus/diff-checkstyle-ql.txt | | whitespace | http://104.198.109.242/logs//PreCommit-HIVE-Build-20711/yetus/whitespace-eol.txt | | findbugs | http://104.198.109.242/logs//PreCommit-HIVE-Build-20711/yetus/new-findbugs-ql.html | | asflicense | http://104.198.109.242/logs//PreCommit-HIVE-Build-20711/yetus/patch-asflicense-problems.txt | | modules | C: common ql contrib U: . | | Console output | http://104.198.109.242/logs//PreCommit-HIVE-Build-20711/yetus.txt | | Powered by | Apache Yetus http://yetus.apache.org | This message was automatically generated. > Enhance data size estimation for fields computed by UDFs > -------------------------------------------------------- > > Key: HIVE-22893 > URL: https://issues.apache.org/jira/browse/HIVE-22893 > Project: Hive > Issue Type: Improvement > Components: Statistics > Reporter: Zoltan Haindrich > Assignee: Zoltan Haindrich > Priority: Major > Labels: pull-request-available > Attachments: HIVE-22893.01.patch, HIVE-22893.02.patch, HIVE-22893.03.patch, HIVE-22893.04.patch > > Time Spent: 10m > Remaining Estimate: 0h > > Right now if we have columnstat on a column ; we use that to estimate things about the column; - however if an UDF is executed on a column ; the resulting column is treated as unknown thing and defaults are assumed. > An improvement could be to give wide estimation(s) in case of frequently used udf. > For example; consider {{substr(c,1,1)}} ; no matter what the input; the output is at most a 1 long string -- This message was sent by Atlassian Jira (v8.3.4#803005)