kangkaisen opened a new pull request #256: Improve cardinality, avgRowSize, numNodes stat info in OlapScanNode URL: https://github.com/apache/incubator-doris/pull/256 Currently, the cardinality, avgRowSize, numNodes stat info in OlapScanNode is none, So the broadcastCost and partitionCost are both wrong and Doris couldn't auto choose a best join strategy. So we should make the statistical information in OlapScanNode more precise.
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