[SPARK-23802][SQL] PropagateEmptyRelation can leave query plan in unresolved state#20914

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robert3005 wants to merge 6 commits intoapache:masterfrom

robert3005:rk/propagate-empty-fix

Commits on Mar 29, 2018

cast
Robert Kruszewski
committed
it actually works
Robert Kruszewski
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propagate empty fix
Robert Kruszewski
committed
typo
Robert Kruszewski
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fix other tests
Robert Kruszewski
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Commits on Mar 30, 2018

use cast support
Robert Kruszewski
committed