GitHub user gatorsmile opened a pull request:
https://github.com/apache/spark/pull/20591
[SPARK-23390] [SQL] Add two extra constructors for ScalaUDF
## What changes were proposed in this pull request?
In the last few releases, we changed the interface of `ScalaUDF`.
Unfortunately, some Spark packages (e.g., spark-deep-learning) are using our
internal class `ScalaUDF`. In the release 2.2 and 2.3, we added new parameters
into these class. The users hit the binary compatibility issues and got the
exception:
```
> java.lang.NoSuchMethodError:
org.apache.spark.sql.catalyst.expressions.ScalaUDF.<init>(Ljava/lang/Object;Lorg/apache/spark/sql/types/DataType;Lscala/collection/Seq;Lscala/collection/Seq;Lscala/Option;)V
```
This PR is to improve the backward compatibility. However, we definitely
should not encourage the external packages to use our internal classes. This
might make us hard to maintain/develop the codes in Spark.
## How was this patch tested?
N/A
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gatorsmile/spark scalaUDF
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/20591.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 #20591
----
commit 2b6be528f5a914dda2b33de269ab7b776a7766cd
Author: gatorsmile <gatorsmile@...>
Date: 2018-02-12T22:14:06Z
fix.
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