GitHub user marmbrus opened a pull request:
https://github.com/apache/spark/pull/5278
[SPARK-5371][SQL] Propogate types after function conversion, before futher
resolution
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 `PropagateTypes` after any coercion has applied.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/marmbrus/spark unionNull
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/5278.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #5278
----
commit dc3581ae6d5c4d280527de962cd170b819f01600
Author: Michael Armbrust <[email protected]>
Date: 2015-03-30T23:36:30Z
[SPARK-5371][SQL] Propogate types after function conversion / before futher
resolution
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