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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-6406) Introduce immutable-table table property and if set, disallow insert-into
Date Thu, 20 Feb 2014 07:55:22 GMT

    [ https://issues.apache.org/jira/browse/HIVE-6406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13906726#comment-13906726
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Lefty Leverenz commented on HIVE-6406:
--------------------------------------

This needs documentation -- how about a release note for starters?  (Of course HIVE-6465 will
also need documentation after it's committed.)  Table properties are inadequately documented
in the wiki -- see my Feb. 14th message to dev@hive:

* [User doc for table properties |http://mail-archives.apache.org/mod_mbox/hive-dev/201402.mbox/%3cCACEcauVSQt1TCrKg=_Oqr2NQSe5AuX7xuZbxcCNX-mLNCo4r-w@mail.gmail.com%3e]

> Introduce immutable-table table property and if set, disallow insert-into
> -------------------------------------------------------------------------
>
>                 Key: HIVE-6406
>                 URL: https://issues.apache.org/jira/browse/HIVE-6406
>             Project: Hive
>          Issue Type: Sub-task
>          Components: HCatalog, Metastore, Query Processor, Thrift API
>            Reporter: Sushanth Sowmyan
>            Assignee: Sushanth Sowmyan
>             Fix For: 0.13.0
>
>         Attachments: HIVE-6406.2.patch, HIVE-6406.3.patch, HIVE-6406.patch
>
>
> As part of HIVE-6405's attempt to make HCatalog and Hive behave in similar ways with
regards to immutable tables, this is a companion task to introduce the notion of an immutable
table, wherein all tables are not immutable by default, and have this be a table property.
If this property is set for a table, and we attempt to write to a table that already has data
(or a partition), disallow "INSERT INTO" into it from hive(if destination directory is non-empty).
This property being set will allow hive to mimic HCatalog's current immutable-table property.



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