beebb7ffc2
Before it was possible for a query to flip back and forth from a resolved state, allowing resolution to propagate up before coercion had stabilized. The issue was that `ResolvedReferences` would run after `FunctionArgumentConversion`, but before `PropagateTypes` had run. This PR ensures we correctly `PropagateTypes` after any coercion has applied. Author: Michael Armbrust <michael@databricks.com> Closes #5278 from marmbrus/unionNull and squashes the following commits: dc3581a [Michael Armbrust] [SPARK-5371][SQL] Propogate types after function conversion / before futher resolution |
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