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

["Alan Gates (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ORC-255?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alan Gates reassigned ORC-255:
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> 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.



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