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https://issues.apache.org/jira/browse/HIVE-19613?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16575126#comment-16575126
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Jaume M commented on HIVE-19613:
--------------------------------
[~prasanth_j] I'm getting the same exception but
[here|https://github.com/apache/hive/blob/873d31f33a061cd38be7de91b208987871fb612e/ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDTFGetSplits.java#L321]
(same condition but a few lines below). I think it makes sense that if it was
getting in the fixed {{if}} it'll get in this one as well.
> GenericUDTFGetSplits should handle fetch task with temp table rewrite
> ---------------------------------------------------------------------
>
> Key: HIVE-19613
> URL: https://issues.apache.org/jira/browse/HIVE-19613
> Project: Hive
> Issue Type: Bug
> Affects Versions: 3.1.0
> Reporter: Eric Wohlstadter
> Assignee: Prasanth Jayachandran
> Priority: Major
> Fix For: 3.1.0, 3.0.1, 4.0.0
>
> Attachments: HIVE-19613.1.patch, HIVE-19613.2.patch,
> HIVE-19613.3.patch
>
>
> GenericUDTFGetSplits fails for fetch task only queries. Fetch task only
> queries can be handled same way as >1 task queries using temp tables.
> {code:java}
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Was expecting a
> single TezTask.
> at
> org.apache.hadoop.hive.ql.udf.generic.GenericUDTFGetSplits.createPlanFragment(GenericUDTFGetSplits.java:262)
> at
> org.apache.hadoop.hive.ql.udf.generic.GenericUDTFGetSplits.process(GenericUDTFGetSplits.java:201)
> at org.apache.hadoop.hive.ql.exec.UDTFOperator.process(UDTFOperator.java:116)
> at org.apache.hadoop.hive.ql.exec.Operator.baseForward(Operator.java:984)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:930)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:917)
> at
> org.apache.hadoop.hive.ql.exec.SelectOperator.process(SelectOperator.java:95)
> at org.apache.hadoop.hive.ql.exec.Operator.baseForward(Operator.java:984)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:930)
> at
> org.apache.hadoop.hive.ql.exec.TableScanOperator.process(TableScanOperator.java:125)
> at
> org.apache.hadoop.hive.ql.exec.FetchOperator.pushRow(FetchOperator.java:492)
> at
> org.apache.hadoop.hive.ql.exec.FetchOperator.pushRow(FetchOperator.java:484)
> at org.apache.hadoop.hive.ql.exec.FetchTask.fetch(FetchTask.java:145)
> ... 16 more{code}
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