You are viewing a plain text version of this content. The canonical link for it is here.

Posted to dev@orc.apache.org by "Alan Gates (JIRA)" <ji...@apache.org> on 2017/10/16 22:10:00 UTC

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

Alan Gates created ORC-255:
------------------------------

             Summary: 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)