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https://issues.apache.org/jira/browse/HIVE-7870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14125726#comment-14125726
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Chao commented on HIVE-7870:
----------------------------
OK, I think I understand the code now (BTW, forgive me if I'm wrong, seems like
you can refactor the code for re-constructing linkedfilesinkdesc by removing
some common code).
Also, just curious, if I just remove the line
{{context.fileSinkSet.add(fileSink)}} in {{removeUnionOperators}}, will it
generate the same result?
> Insert overwrite table query does not generate correct task plan [Spark
> Branch]
> -------------------------------------------------------------------------------
>
> Key: HIVE-7870
> URL: https://issues.apache.org/jira/browse/HIVE-7870
> Project: Hive
> Issue Type: Sub-task
> Components: Spark
> Reporter: Na Yang
> Assignee: Na Yang
> Labels: Spark-M1
> Attachments: HIVE-7870.1-spark.patch, HIVE-7870.2-spark.patch,
> HIVE-7870.3-spark.patch, HIVE-7870.4-spark.patch, HIVE-7870.5-spark.patch
>
>
> Insert overwrite table query does not generate correct task plan when
> hive.optimize.union.remove and hive.merge.sparkfiles properties are ON.
> {noformat}
> set hive.optimize.union.remove=true
> set hive.merge.sparkfiles=true
> insert overwrite table outputTbl1
> SELECT * FROM
> (
> select key, 1 as values from inputTbl1
> union all
> select * FROM (
> SELECT key, count(1) as values from inputTbl1 group by key
> UNION ALL
> SELECT key, 2 as values from inputTbl1
> ) a
> )b;
> select * from outputTbl1 order by key, values;
> {noformat}
> query result
> {noformat}
> 1 1
> 1 2
> 2 1
> 2 2
> 3 1
> 3 2
> 7 1
> 7 2
> 8 2
> 8 2
> 8 2
> {noformat}
> expected result:
> {noformat}
> 1 1
> 1 1
> 1 2
> 2 1
> 2 1
> 2 2
> 3 1
> 3 1
> 3 2
> 7 1
> 7 1
> 7 2
> 8 1
> 8 1
> 8 2
> 8 2
> 8 2
> {noformat}
> Move work is not working properly and some data are missing during move.
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