[jira] [Commented] (ORC-255) Add support for reading ACID2 files to ORC

["Owen O'Malley (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ORC-255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16206696#comment-16206696 ] 

Owen O'Malley commented on ORC-255:
-----------------------------------

I think this is a good idea, although I suspect it will be more useful with both ACID v1 and v2 support.

> Add support for reading ACID2 files to ORC
> ------------------------------------------
>
>                 Key: ORC-255
>                 URL: https://issues.apache.org/jira/browse/ORC-255
>             Project: ORC
>          Issue Type: New Feature
>          Components: ACID
>            Reporter: Alan Gates
>            Assignee: Alan Gates
>
> When ORC was split out of Hive the reading and writing of ACID files was left in Hive.  This blocks non-Hive users from reading or writing ACID.  I propose to add support for ACID to ORC.
> At this point I only propose to add support for ACID 2 (that is, the version that will be released in Hive 3, which simplifies the storage to have only inserts and deletes (updates are an insert plus a delete)).
> Also, note that to use this readers and writers would still have to interact with the Hive metastore to get a list of valid transactions and acquire appropriate locks.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)