László Pintér created HIVE-22977:
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Summary: 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: László Pintér
[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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