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https://issues.apache.org/jira/browse/HIVE-17972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16267942#comment-16267942
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Ferdinand Xu commented on HIVE-17972:
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Thanks [~colinma] for the patch. +1 pending on the test
> Implement Parquet vectorization reader for Map type
> ---------------------------------------------------
>
> Key: HIVE-17972
> URL: https://issues.apache.org/jira/browse/HIVE-17972
> Project: Hive
> Issue Type: Sub-task
> Reporter: Colin Ma
> Assignee: Colin Ma
> Attachments: HIVE-17972.001.patch, HIVE-17972.002.patch
>
>
> Parquet vectorized reader can't support map type, it should be supported to
> improve the performance when the query with map type.
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