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