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From "Mithun Radhakrishnan (JIRA)" <>
Subject [jira] [Updated] (HIVE-9118) Support auto-purge for tables, when dropping tables/partitions.
Date Thu, 18 Dec 2014 21:34:14 GMT


Mithun Radhakrishnan updated HIVE-9118:
    Attachment: HIVE-9118.2.patch

And now, with tests.

> Support auto-purge for tables, when dropping tables/partitions.
> ---------------------------------------------------------------
>                 Key: HIVE-9118
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore
>    Affects Versions: 0.15.0
>            Reporter: Mithun Radhakrishnan
>            Assignee: Mithun Radhakrishnan
>         Attachments: HIVE-9118.1.patch, HIVE-9118.2.patch
> HIVE-7100 introduced a way to skip the trash directory, when deleting table-data, while
dropping tables.
> In HIVE-9083/HIVE-9086, I extended this to work when partitions are dropped.
> Here, I propose a table-parameter ({{"auto.purge"}}) to set up tables to skip-trash when
table/partition data is deleted, without needing to say "PURGE" on the Hive CLI. Apropos,
on {{dropTable()}} and {{dropPartition()}}, table data is deleted directly (and not moved
to trash) if the following hold true:
> # The table is MANAGED.
> # The {{deleteData}} parameter to the {{HMSC.drop*()}} methods is true.
> # Either PURGE is explicitly specified on the command-line (or rather, {{"ifPurge"}}
is set in the environment context, OR
> # TBLPROPERTIES contains {{"auto.purge"="true"}}

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