Rui Wang created BEAM-6427:
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Summary: INTERSECT ALL is not compatible with SQL standard
Key: BEAM-6427
URL: https://issues.apache.org/jira/browse/BEAM-6427
Project: Beam
Issue Type: Improvement
Components: dsl-sql
Reporter: Rui Wang
Assignee: Rui Wang
say Row R appears m times on one side and n times on another side.
Beam's INTERSECT ALL is implemented to return MAX(m, n).
And SQL1999 standard says INTERSECT ALL should return MIN(m, n).
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