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From "Ashish Thusoo (JIRA)" <>
Subject [jira] Updated: (HIVE-1131) Add column lineage information to the pre execution hooks
Date Fri, 02 Apr 2010 07:08:27 GMT


Ashish Thusoo updated HIVE-1131:

    Attachment: HIVE-1131_6.patch

With fixes to tests and with null dropped.

> Add column lineage information to the pre execution hooks
> ---------------------------------------------------------
>                 Key: HIVE-1131
>                 URL:
>             Project: Hadoop Hive
>          Issue Type: New Feature
>          Components: Query Processor
>            Reporter: Ashish Thusoo
>            Assignee: Ashish Thusoo
>         Attachments: HIVE-1131.patch, HIVE-1131_2.patch, HIVE-1131_3.patch, HIVE-1131_4.patch,
HIVE-1131_5.patch, HIVE-1131_6.patch
> We need a mechanism to pass the lineage information of the various columns of a table
to a pre execution hook so that applications can use that for:
> - auditing
> - dependency checking
> and many other applications.
> The proposal is to expose this through a bunch of classes to the pre execution hook interface
to the clients and put in the necessary transformation logic in the optimizer to generate
this information.

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