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1. Performance_tuning.txt Performance_tuning.txt

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   Performance boosting for the hiveQL:

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   In Case of the HIVE:

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   HiveQL, in traditional approch, runs on top of apache hadoop, yarn, (mapReduce/tez or spark engine) and hive server.

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   COMPONET OF HIVE SERVICE:

2. Postgresql DBA. All postgres queries... Postgresql DBA. All postgres queries for DBA

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   -- Create read-only roal in postgres

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   create role test inherit;

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   GRANT CONNECT ON DATABASE test_db TO test;

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   GRANT USAGE ON SCHEMA public TO test;

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   GRANT SELECT ON ALL TABLES IN SCHEMA public TO test;