Navis created SPARK-8334:
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Summary: Binary logical plan should provide more realistic
statistics
Key: SPARK-8334
URL: https://issues.apache.org/jira/browse/SPARK-8334
Project: Spark
Issue Type: Improvement
Components: SQL
Reporter: Navis
Priority: Minor
Currently, spark-sql multiplies size of two children for output size, which
makes following join hash the other side of input. In multi way joins
something like (A join B) join C, C will be marked as 'buildHash' target if
size of C is not bigger than (size of A * size of B). Some results of TPC-H
queries are greatly affected by this.
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