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Posted to issues@hive.apache.org by "Eugene Koifman (JIRA)" <ji...@apache.org> on 2017/07/19 17:46:00 UTC

[jira] [Assigned] (HIVE-17127) delete_deleta_x_x cannot modify delta_x_x

     [ https://issues.apache.org/jira/browse/HIVE-17127?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eugene Koifman reassigned HIVE-17127:
-------------------------------------


> delete_deleta_x_x cannot modify delta_x_x
> -----------------------------------------
>
>                 Key: HIVE-17127
>                 URL: https://issues.apache.org/jira/browse/HIVE-17127
>             Project: Hive
>          Issue Type: Improvement
>    Affects Versions: 2.2.0
>            Reporter: Eugene Koifman
>            Assignee: Eugene Koifman
>            Priority: Minor
>
> with split update an update statement will produce delete_deleta_x_x and delta_x_x for any auto commit txn.  For multi-statement txn delete_delta_x_x_k may modify delta_x_x_j for j < k.
> Since we generate splits from delta_x_x there may be a small optimization here.



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