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https://issues.apache.org/jira/browse/HIVE-21724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Voros updated HIVE-21724:
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Attachment: HIVE-21724.1.patch
> Nested ARRAY and STRUCT inside MAP don't work with LazySimpleDeserializeRead
> ----------------------------------------------------------------------------
>
> Key: HIVE-21724
> URL: https://issues.apache.org/jira/browse/HIVE-21724
> Project: Hive
> Issue Type: Bug
> Components: Serializers/Deserializers
> Affects Versions: 3.1.1
> Reporter: Daniel Voros
> Assignee: Daniel Voros
> Priority: Major
> Attachments: HIVE-21724.1.patch
>
>
> The logic during vectorized execution that keeps track of how deep we are in
> the nested structure doesn't work for ARRAYs and STRUCTs embedded inside maps.
> Repro steps (with hive.vectorized.execution.enabled=true):
> {code}
> CREATE TABLE srctable(a map<int,array<int>>) STORED AS TEXTFILE;
> create table desttable(c1 map<int,array<int>>);
> insert into srctable values (map(1, array(1, 2, 3)));
> insert into desttable select a from srctable;
> select * from desttable;
> {code}
> Will produce:
> {code}
> {1:[null]}
> {code}
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