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https://issues.apache.org/jira/browse/HIVE-17931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16246862#comment-16246862
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Colin Ma edited comment on HIVE-17931 at 11/10/17 8:24 AM:
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[~vihangk1], I'm afraid complex types is not fully supported, and I got the
problem because of the following code:
[https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/exec/vector/VectorizationContext.java#L3261]
The List and Map are not supported, and the MapWork can't be vectorized with
these types.
I created HIVE-18043 to track this problem.
was (Author: colinma):
[~vihangk1], I'm afraid complex types is not fully supported, and I got the
problem because of the following code:
[https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/exec/vector/VectorizationContext.java#L3261]
The List and Map are not supported, and the MapWork can't be vectorized with
these types.
> Implement Parquet vectorization reader for Array type
> -----------------------------------------------------
>
> Key: HIVE-17931
> URL: https://issues.apache.org/jira/browse/HIVE-17931
> Project: Hive
> Issue Type: Sub-task
> Reporter: Colin Ma
> Assignee: Colin Ma
> Attachments: HIVE-17931.001.patch, HIVE-17931.002.patch,
> HIVE-17931.003.patch, HIVE-17931.004.patch
>
>
> Parquet vectorized reader can't support array type, it should be supported to
> improve the performance when the query with array type.
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