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From "Matt McCline (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-20563) Vectorization: CASE WHEN expression fails when THEN/ELSE type and result type are different
Date Thu, 27 Sep 2018 07:30:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-20563?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Matt McCline updated HIVE-20563:
--------------------------------
    Status: In Progress  (was: Patch Available)

> Vectorization: CASE WHEN expression fails when THEN/ELSE type and result type are different
> -------------------------------------------------------------------------------------------
>
>                 Key: HIVE-20563
>                 URL: https://issues.apache.org/jira/browse/HIVE-20563
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 4.0.0
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Matt McCline
>            Priority: Major
>         Attachments: HIVE-20563.01.patch, HIVE-20563.02.patch, HIVE-20563.03.patch
>
>
> With the following stacktrace:
> {code}
> java.lang.Exception: java.lang.RuntimeException: org.apache.hadoop.hive.ql.metadata.HiveException:
Hive Runtime Error while processing row
>         at org.apache.hadoop.mapred.LocalJobRunner$Job.runTasks(LocalJobRunner.java:492)
~[hadoop-mapreduce-client-common-3.1.0.jar:?]
>         at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:552) [hadoop-mapreduce-client-common-3.1.0.jar:?]
> Caused by: java.lang.RuntimeException: org.apache.hadoop.hive.ql.metadata.HiveException:
Hive Runtime Error while processing row
>         at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:163) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54) ~[hadoop-mapreduce-client-core-3.1.0.jar:?]
>         at org.apache.hadoop.hive.ql.exec.mr.ExecMapRunner.run(ExecMapRunner.java:37)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:465) ~[hadoop-mapreduce-client-core-3.1.0.jar:?]
>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:349) ~[hadoop-mapreduce-client-core-3.1.0.jar:?]
>         at org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:271)
~[hadoop-mapreduce-client-common-3.1.0.jar:?]
>         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_181]
>         at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_181]
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
~[?:1.8.0_181]
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
~[?:1.8.0_181]
>         at java.lang.Thread.run(Thread.java:748) ~[?:1.8.0_181]
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while
processing row
>         at org.apache.hadoop.hive.ql.exec.vector.VectorMapOperator.process(VectorMapOperator.java:973)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:154) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54) ~[hadoop-mapreduce-client-core-3.1.0.jar:?]
>         at org.apache.hadoop.hive.ql.exec.mr.ExecMapRunner.run(ExecMapRunner.java:37)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:465) ~[hadoop-mapreduce-client-core-3.1.0.jar:?]
>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:349) ~[hadoop-mapreduce-client-core-3.1.0.jar:?]
>         at org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:271)
~[hadoop-mapreduce-client-common-3.1.0.jar:?]
>         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_181]
>         at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_181]
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
~[?:1.8.0_181]
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
~[?:1.8.0_181]
>         at java.lang.Thread.run(Thread.java:748) ~[?:1.8.0_181]
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Error evaluating cstring1
>         at org.apache.hadoop.hive.ql.exec.vector.VectorSelectOperator.process(VectorSelectOperator.java:149)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.Operator.vectorForward(Operator.java:965) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:938) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.vector.VectorFilterOperator.process(VectorFilterOperator.java:136)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.Operator.vectorForward(Operator.java:965) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:938) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.TableScanOperator.process(TableScanOperator.java:125)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.vector.VectorMapOperator.deliverVectorizedRowBatch(VectorMapOperator.java:812)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.vector.VectorMapOperator.process(VectorMapOperator.java:845)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:154) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54) ~[hadoop-mapreduce-client-core-3.1.0.jar:?]
>         at org.apache.hadoop.hive.ql.exec.mr.ExecMapRunner.run(ExecMapRunner.java:37)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:465) ~[hadoop-mapreduce-client-core-3.1.0.jar:?]
>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:349) ~[hadoop-mapreduce-client-core-3.1.0.jar:?]
>         at org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:271)
~[hadoop-mapreduce-client-common-3.1.0.jar:?]
>         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_181]
>         at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_181]
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
~[?:1.8.0_181]
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
~[?:1.8.0_181]
>         at java.lang.Thread.run(Thread.java:748) ~[?:1.8.0_181]
> Caused by: java.lang.ClassCastException: org.apache.hadoop.io.FloatWritable cannot be
cast to org.apache.hadoop.io.Text
>         at org.apache.hadoop.hive.ql.exec.vector.VectorAssignRow.assignRowColumn(VectorAssignRow.java:471)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.vector.VectorAssignRow.assignRowColumn(VectorAssignRow.java:350)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.vector.udf.VectorUDFAdaptor.setResult(VectorUDFAdaptor.java:205)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.vector.udf.VectorUDFAdaptor.evaluate(VectorUDFAdaptor.java:146)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.vector.expressions.IfExprCondExprBase.conditionalEvaluate(IfExprCondExprBase.java:68)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.vector.expressions.IfExprColumnCondExpr.evaluate(IfExprColumnCondExpr.java:113)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.vector.VectorSelectOperator.process(VectorSelectOperator.java:146)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.Operator.vectorForward(Operator.java:965) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:938) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.vector.VectorFilterOperator.process(VectorFilterOperator.java:136)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.Operator.vectorForward(Operator.java:965) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:938) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.TableScanOperator.process(TableScanOperator.java:125)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.vector.VectorMapOperator.deliverVectorizedRowBatch(VectorMapOperator.java:812)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.vector.VectorMapOperator.process(VectorMapOperator.java:845)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:154) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54) ~[hadoop-mapreduce-client-core-3.1.0.jar:?]
>         at org.apache.hadoop.hive.ql.exec.mr.ExecMapRunner.run(ExecMapRunner.java:37)
~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
>         at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:465) ~[hadoop-mapreduce-client-core-3.1.0.jar:?]
>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:349) ~[hadoop-mapreduce-client-core-3.1.0.jar:?]
>         at org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:271)
~[hadoop-mapreduce-client-common-3.1.0.jar:?]
>         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_181]
> ...
> {code}
> To repro:
> {code:sql}
> --! qt:dataset:alltypesorc
> set hive.stats.fetch.column.stats=true;
> set hive.explain.user=false;
> SET hive.vectorized.execution.enabled=true;
> set hive.fetch.task.conversion=none;
> -- SORT_QUERY_RESULTS
> EXPLAIN VECTORIZATION ONLY EXPRESSION SELECT cdouble, cstring1, cint, cfloat, csmallint,
>   case
>     when (cdouble is not null) then cdouble
>     when (cstring1 is not null) then cstring1
>     when (cint is not null) then cint
>     when (cfloat is not null) then cfloat
>     when (csmallint is not null) then csmallint
>     else null
>     end as c
> FROM alltypesorc
> WHERE (cdouble IS NULL)
> ORDER BY cdouble, cstring1, cint, cfloat, csmallint, c
> LIMIT 10;
> SELECT cdouble, cstring1, cint, cfloat, csmallint,
>   case
>     when (cdouble is not null) then cdouble
>     when (cstring1 is not null) then cstring1
>     when (cint is not null) then cint
>     when (cfloat is not null) then cfloat
>     when (csmallint is not null) then csmallint
>     else null
>     end as c
> FROM alltypesorc
> WHERE (cdouble IS NULL)
> ORDER BY cdouble, cstring1, cint, cfloat, csmallint, c
> LIMIT 10;
> {code}



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