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https://issues.apache.org/jira/browse/HIVE-8043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14139918#comment-14139918
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Rui Li commented on HIVE-8043:
------------------------------
I looked more and found {{MergeFileTask}} uses {{HadoopJobExecHelper}} which
sets the execution engine to MR in the constructor method. So I think we don't
have to worry about the DDL task.
> Support merging small files [Spark Branch]
> ------------------------------------------
>
> Key: HIVE-8043
> URL: https://issues.apache.org/jira/browse/HIVE-8043
> Project: Hive
> Issue Type: Task
> Components: Spark
> Reporter: Xuefu Zhang
> Assignee: Rui Li
> Labels: Spark-M1
> Attachments: HIVE-8043.1-spark.patch, HIVE-8043.2-spark.patch
>
>
> Hive currently supports merging small files with MR as the execution engine.
> There are options available for this, such as
> {code}
> hive.merge.mapfiles
> hive.merge.mapredfiles
> {code}
> Hive.merge.sparkfiles is already introduced in HIVE-7810. To make it work, we
> might need a little more research and design on this.
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