[ https://issues.apache.org/jira/browse/HIVE-9141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Navis updated HIVE-9141: ------------------------ Assignee: Navis Status: Patch Available (was: Open) Quick shot. > HiveOnTez: mix of union all, distinct, group by generates error > --------------------------------------------------------------- > > Key: HIVE-9141 > URL: https://issues.apache.org/jira/browse/HIVE-9141 > Project: Hive > Issue Type: Bug > Reporter: Pengcheng Xiong > Assignee: Navis > Attachments: HIVE-9141.1.patch.txt > > > Here is the way to produce it: > in Hive q test setting (with src table) > set hive.execution.engine=tez; > SELECT key, value FROM > ( > SELECT key, value FROM src > UNION ALL > SELECT key, key as value FROM > > ( > SELECT distinct key FROM ( > SELECT key, value FROM > (SELECT key, value FROM src > UNION ALL > SELECT key, value FROM src > )t1 > group by key, value > )t2 > )t3 > > )t4 > group by key, value; > will generate > 2014-12-16 23:19:13,593 ERROR ql.Driver (SessionState.java:printError(834)) - > FAILED: ClassCastException org.apache.hadoop.hive.ql.plan.MapWork cannot be > cast to org.apache.hadoop.hive.ql.plan.ReduceWork > java.lang.ClassCastException: org.apache.hadoop.hive.ql.plan.MapWork cannot > be cast to org.apache.hadoop.hive.ql.plan.ReduceWork > at > org.apache.hadoop.hive.ql.parse.GenTezWork.process(GenTezWork.java:361) > at > org.apache.hadoop.hive.ql.lib.DefaultRuleDispatcher.dispatch(DefaultRuleDispatcher.java:90) > at > org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatchAndReturn(DefaultGraphWalker.java:94) > at > org.apache.hadoop.hive.ql.parse.GenTezWorkWalker.walk(GenTezWorkWalker.java:87) > at > org.apache.hadoop.hive.ql.parse.GenTezWorkWalker.walk(GenTezWorkWalker.java:103) > at > org.apache.hadoop.hive.ql.parse.GenTezWorkWalker.walk(GenTezWorkWalker.java:103) > at > org.apache.hadoop.hive.ql.parse.GenTezWorkWalker.walk(GenTezWorkWalker.java:103) > at > org.apache.hadoop.hive.ql.parse.GenTezWorkWalker.walk(GenTezWorkWalker.java:103) > at > org.apache.hadoop.hive.ql.parse.GenTezWorkWalker.startWalking(GenTezWorkWalker.java:69) > at > org.apache.hadoop.hive.ql.parse.TezCompiler.generateTaskTree(TezCompiler.java:368) > at > org.apache.hadoop.hive.ql.parse.TaskCompiler.compile(TaskCompiler.java:202) > at > org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:10202) > at > org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:224) > at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:419) > at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:305) > at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1107) > at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1155) > at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1044) > at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1034) > at > org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:206) > at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:158) > at > org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:369) > at > org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:304) > at > org.apache.hadoop.hive.ql.QTestUtil.executeClient(QTestUtil.java:834) > at > org.apache.hadoop.hive.cli.TestMiniTezCliDriver.runTest(TestMiniTezCliDriver.java:136) > at > org.apache.hadoop.hive.cli.TestMiniTezCliDriver.testCliDriver_uniontez2(TestMiniTezCliDriver.java:120) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) -- This message was sent by Atlassian JIRA (v6.3.4#6332)