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Posted to issues@hive.apache.org by "Eugene Koifman (JIRA)" <ji...@apache.org> on 2015/06/23 01:13:00 UTC

[jira] [Updated] (HIVE-11030) Enhance storage layer to create one delta file per write

     [ https://issues.apache.org/jira/browse/HIVE-11030?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eugene Koifman updated HIVE-11030:
----------------------------------
    Attachment: HIVE-11030.2.patch

> Enhance storage layer to create one delta file per write
> --------------------------------------------------------
>
>                 Key: HIVE-11030
>                 URL: https://issues.apache.org/jira/browse/HIVE-11030
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Transactions
>    Affects Versions: 1.2.0
>            Reporter: Eugene Koifman
>            Assignee: Eugene Koifman
>         Attachments: HIVE-11030.2.patch
>
>
> Currently each txn using ACID insert/update/delete will generate a delta directory like delta_0000100_0000101.  In order to support multi-statement transactions we must generate one delta per operation within the transaction so the deltas would be named like delta_0000100_0000101_0001, etc.
> Support for MERGE (HIVE-10924) would need the same.



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