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Hive QA commented on HIVE-21915: -------------------------------- | (/) *{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:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 1m 49s{color} | {color:blue} Maven dependency ordering for branch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m 9s{color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 2s{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 0s{color} | {color:blue} ql in master has 2253 extant Findbugs warnings. {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 56s{color} | {color:green} master passed {color} | || || || || {color:brown} Patch Compile Tests {color} || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 28s{color} | {color:blue} Maven dependency ordering for patch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 26s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 6s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 6s{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 11s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 59s{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 7s{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 3.16.43-2+deb8u5 (2017-09-19) x86_64 GNU/Linux | | Build tool | maven | | Personality | /data/hiveptest/working/yetus_PreCommit-HIVE-Build-17747/dev-support/hive-personality.sh | | git revision | master / 967a1cc | | Default Java | 1.8.0_111 | | findbugs | v3.0.0 | | modules | C: ql itests U: . | | Console output | http://104.198.109.242/logs//PreCommit-HIVE-Build-17747/yetus.txt | | Powered by | Apache Yetus http://yetus.apache.org | This message was automatically generated. > Hive with TEZ UNION ALL and UDTF results in data loss > ----------------------------------------------------- > > Key: HIVE-21915 > URL: https://issues.apache.org/jira/browse/HIVE-21915 > Project: Hive > Issue Type: Bug > Components: Query Processor > Affects Versions: 1.2.1 > Reporter: Wei Zhang > Assignee: Wei Zhang > Priority: Major > Attachments: HIVE-21915.01.patch, HIVE-21915.02.patch, > HIVE-21915.03.patch, HIVE-21915.04.patch > > > The HQL syntax is like this: > CREATE TEMPORARY TABLE tez_union_all_loss_data AS > SELECT xxx, yyy, zzz,1 as tag > FROM ods_1 > UNION ALL > SELECT xxx, yyy, zzz, tag > FROM > ( > SELECT xxx > ,get_json_object(get_json_object(tb,'$.a'),'$.b') AS yyy > ,zzz > ,2 as tag > FROM ods_2 > LATERAL VIEW EXPLODE(some_udf(uuu)) team_number AS tb > ) tbl > ; > > With above HQL, we are expecting that rows with both tag = 2 and tag = 1 > appear. In our case however, all the rows with tag = 1 are lost. > Dig deeper we can find that the generated two maps have identical task tmp > paths. And that results from when UDTF is present, the FileSinkOperator will > be processed twice generating the tmp path in > GenTezUtils.removeUnionOperators(); > -- This message was sent by Atlassian JIRA (v7.6.3#76005)