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From "Navis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-9138) Add some explain to PTF operator
Date Thu, 12 Feb 2015 02:22:13 GMT

    [ https://issues.apache.org/jira/browse/HIVE-9138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14317444#comment-14317444
] 

Navis commented on HIVE-9138:
-----------------------------

Explainable was introduced to avoid implementing Serializable just for explain result. I can
remove this but PTFInputDef, etc. should be Serializable. 
Changes in ColumnPruner are basically for setting output shape of partition function for explain.
It's transient fields just for building PTF at first time and seemed safe to change.

> Add some explain to PTF operator
> --------------------------------
>
>                 Key: HIVE-9138
>                 URL: https://issues.apache.org/jira/browse/HIVE-9138
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Trivial
>         Attachments: HIVE-9138.1.patch.txt, HIVE-9138.2.patch.txt, HIVE-9138.3.patch.txt
>
>
> PTFOperator does not explain anything in explain statement, making it hard to understand
the internal works. 



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