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https://issues.apache.org/jira/browse/HIVE-14885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15545992#comment-15545992
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Xuefu Zhang commented on HIVE-14885:
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cc: [~zshao], [~Ferd], [~spena]
> Support PPD for nested columns
> ------------------------------
>
> Key: HIVE-14885
> URL: https://issues.apache.org/jira/browse/HIVE-14885
> Project: Hive
> Issue Type: Improvement
> Components: Logical Optimizer, Serializers/Deserializers
> Affects Versions: 2.1.0
> Reporter: Xuefu Zhang
>
> It looks like that PPD doesn't work for nested columns, at least not for
> Parquet. For a given schema
> {code}
> hive> desc nested;
> OK
> a int
> b string
> c struct<d:int,e:string>
> {code}
> PPD works for a query like
> {code}
> select * from nested where a=1;
> {code}
> while NOT for
> {code}
> select * from nested where c.d=2;
> {code}
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