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  1. IMPALA
  2. IMPALA-2343

Capture operator timing information covering open/close & first/last batch close

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    Description

      Currently Impala query profile doesn't cover operator level timeline, which makes it difficult to understand the query timeline and fragment dependencies.

      Such information will allow us to provide query swim lanes.

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              tarmstrong Tim Armstrong
              mmokhtar Mostafa Mokhtar
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