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Are Results Returned As They Become Available, Or All At Once When A Query Completes? |
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Answer» Impala STREAMS results whenever they are AVAILABLE, when possible. Certain SQL operations (AGGREGATION or ORDER BY) require all of the input to be ready before Impala can return results. Impala streams results whenever they are available, when possible. Certain SQL operations (aggregation or ORDER BY) require all of the input to be ready before Impala can return results. |
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