[SPARK-9858][SPARK-9859][SPARK-9861][SQL] Add an ExchangeCoordinator to estimate the number of post-shuffle partitions for aggregates and joins#9276
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yhuai wants to merge 12 commits intoapache:masterfrom
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[SPARK-9858][SPARK-9859][SPARK-9861][SQL] Add an ExchangeCoordinator to estimate the number of post-shuffle partitions for aggregates and joins#9276yhuai wants to merge 12 commits intoapache:masterfrom yhuai:numReducer
yhuai wants to merge 12 commits intoapache:masterfrom
yhuai:numReducer
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Commits on Nov 2, 2015
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Update test to avoid of having a single node as the both left and right children of a join operator.
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