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From "Carl Steinbach (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3678) Add metastore upgrade scripts for column stats schema changes
Date Mon, 19 Nov 2012 19:47:59 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3678?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13500570#comment-13500570
] 

Carl Steinbach commented on HIVE-3678:
--------------------------------------

Sorry for the confusion. When I wrote "blob" I was trying to convey only that the field will
be opaque to the DB (since it's a JSON struct), not that it will actually be stored in a BLOB
column. If we store the JSON struct in a VARCHAR we have at least 4000 bytes to work with.
                
> Add metastore upgrade scripts for column stats schema changes
> -------------------------------------------------------------
>
>                 Key: HIVE-3678
>                 URL: https://issues.apache.org/jira/browse/HIVE-3678
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore
>            Reporter: Shreepadma Venugopalan
>            Assignee: Shreepadma Venugopalan
>             Fix For: 0.10.0
>
>         Attachments: HIVE-3678.1.patch.txt
>
>
> Add upgrade script for column statistics schema changes for Postgres/MySQL/Oracle/Derby

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