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from 4ad9bfd [SPARK-32138] Drop Python 2.7, 3.4 and 3.5
add 24be816 [SPARK-32241][SQL] Remove empty children of union
No new revisions were added by this update.
Summary of changes:
.../spark/sql/catalyst/optimizer/Optimizer.scala | 10 ++++--
.../optimizer/PropagateEmptyRelation.scala | 22 +++++++++++--
.../optimizer/PropagateEmptyRelationSuite.scala | 38 +++++++++++++++++++++-
3 files changed, 65 insertions(+), 5 deletions(-)
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