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3b7d5b7c17
New classes: - ParallelPlanner: creates build plans, assigns plans to cohorts - JoinBuildSink: DataSink for plan fragments that materialize build sides - ids for plans, hash tables, plan fragments Tests: this adds a new test file section PARALLELPLANS and augments the tpc-h/-ds tests with those sections. In the interest of keeping this patch small I didn't augment other test files with that section yet (which will happen at a later date, to cover more corner cases). Change-Id: Ic3c34dd3f9190a131e6f03d901b4bfcd164a5174 Reviewed-on: http://gerrit.cloudera.org:8080/2846 Tested-by: Internal Jenkins Reviewed-by: Marcel Kornacker <marcel@cloudera.com>