GitHub user gatorsmile opened a pull request:
https://github.com/apache/spark/pull/17626
[SPARK-20315] [SQL] Set ScalaUDF's deterministic to true
### What changes were proposed in this pull request?
ScalaUDF is always assumed to deterministic, based on the previous
discussion in https://github.com/apache/spark/pull/13087. However, the current
master still sets it based on the children's deterministic values.
This PR is to correct it by always setting it to true, even if the
children's deterministic values are not true.
### How was this patch tested?
Added a test case.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gatorsmile/spark nonDeterministicScalaUDF
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/17626.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 #17626
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commit 39abf22f4257acd564f0f29a551751c8a35018d7
Author: Xiao Li <[email protected]>
Date: 2017-04-13T00:28:31Z
fix.
commit 4e59b6715475313653efe1d21f1a2ec270ccfd5a
Author: Xiao Li <[email protected]>
Date: 2017-04-13T00:40:55Z
correct it
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