Sergey Shelukhin created HIVE-15664:
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Summary: LLAP text cache: improve first query perf
Key: HIVE-15664
URL: https://issues.apache.org/jira/browse/HIVE-15664
Project: Hive
Issue Type: Bug
Reporter: Sergey Shelukhin
1) Don't use ORC dictionary.
2) Use VectorDeserialize.
3) Don't parse the columns that are not included (cannot avoid reading them).
4) Send VRB to the pipeline and write ORC in parallel (in background).
Also add an option to disable the encoding pipeline server-side.
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