[jira] [Reopened] (HIVE-22977) Merge delta files instead of running a query in major/minor compaction

["Sourabh Badhya (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-22977?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sourabh Badhya reopened HIVE-22977:
-----------------------------------
      Assignee: Sourabh Badhya  (was: László Pintér)

> Merge delta files instead of running a query in major/minor compaction
> ----------------------------------------------------------------------
>
>                 Key: HIVE-22977
>                 URL: https://issues.apache.org/jira/browse/HIVE-22977
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: László Pintér
>            Assignee: Sourabh Badhya
>            Priority: Major
>         Attachments: HIVE-22977.01.patch, HIVE-22977.02.patch
>
>
> [Compaction Optimiziation]
> We should analyse the possibility to move a delta file instead of running a major/minor compaction query.
> Please consider the following use cases:
>  - full acid table but only insert queries were run. This means that no delete delta directories were created. Is it possible to merge the delta directory contents without running a compaction query?
>  - full acid table, initiating queries through the streaming API. If there are no abort transactions during the streaming, is it possible to merge the delta directory contents without running a compaction query?



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