[ https://issues.apache.org/jira/browse/HIVE-20210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16551193#comment-16551193 ]
Hive QA commented on HIVE-20210: -------------------------------- | (/) *{color:green}+1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || || || || || {color:brown} Prechecks {color} || | {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s{color} | {color:green} The patch does not contain any @author tags. {color} | || || || || {color:brown} master Compile Tests {color} || | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 8m 40s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 10s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 41s{color} | {color:green} master passed {color} | | {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 4m 21s{color} | {color:blue} ql in master has 2281 extant Findbugs warnings. {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 58s{color} | {color:green} master passed {color} | || || || || {color:brown} Patch Compile Tests {color} || | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 28s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 5s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 5s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 39s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 0s{color} | {color:green} The patch has no whitespace issues. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 4m 21s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 58s{color} | {color:green} the patch passed {color} | || || || || {color:brown} Other Tests {color} || | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 14s{color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black} 25m 14s{color} | {color:black} {color} | \\ \\ || Subsystem || Report/Notes || | Optional Tests | asflicense javac javadoc findbugs checkstyle compile | | uname | Linux hiveptest-server-upstream 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1+deb8u1 (2016-09-03) x86_64 GNU/Linux | | Build tool | maven | | Personality | /data/hiveptest/working/yetus_PreCommit-HIVE-Build-12741/dev-support/hive-personality.sh | | git revision | master / 06a4f98 | | Default Java | 1.8.0_111 | | findbugs | v3.0.0 | | modules | C: ql U: ql | | Console output | http://104.198.109.242/logs//PreCommit-HIVE-Build-12741/yetus.txt | | Powered by | Apache Yetus http://yetus.apache.org | This message was automatically generated. > Simple Fetch optimizer should lead to MapReduce when filter on non-partition > column and conversion is minimal > ------------------------------------------------------------------------------------------------------------- > > Key: HIVE-20210 > URL: https://issues.apache.org/jira/browse/HIVE-20210 > Project: Hive > Issue Type: Bug > Components: Query Planning > Affects Versions: 2.3.0, 2.3.1, 2.3.2 > Reporter: Jeffrey(Xilang) Yan > Assignee: Jeffrey(Xilang) Yan > Priority: Major > Attachments: HIVE-20210.2.patch, HIVE-20210.patch > > > When conversion is minimal, simple fetch can be used only when filter on > partition column or no filter at all. But it lead to simple fetch even if > filter on non-partition column. Unit test " select * from srcpart where key > > 100 limit 10 " in the nonmr_fetch.q demonstration this issue – the unit test > is not correct indeed(it should be Map Reduce but in test it is Simple > Fetch). > This issue lead to a serious problem when data size is huge. When conversion > is more and filter on both partition column and non-partition column, it will > not chech hive.fetch.task.conversion.threshold, which lead to the query to > takes hours to finish. This issue doesn't exist in 1.2.1, how it works should > be a magic... -- This message was sent by Atlassian JIRA (v7.6.3#76005)