Github user ryan-williams commented on the pull request:
https://github.com/apache/spark/pull/4209#issuecomment-71570351
Thanks @srowen, [here's a
diff](https://gist.github.com/ryan-williams/4e9283fed8dea2ba4815#file-) that
seems to imply only changes to this dependency, but the
[before](https://gist.github.com/ryan-williams/4e9283fed8dea2ba4815#file-before)
and
[after](https://gist.github.com/ryan-williams/4e9283fed8dea2ba4815#file-after)
both failed with errors like:
```
Failed to execute goal on project spark-assembly_2.10: Could not resolve
dependencies for project
org.apache.spark:spark-assembly_2.10:pom:1.3.0-SNAPSHOT: Failure to find
org.apache.spark:spark-repl_2.10:jar:1.3.0-SNAPSHOT in
http://repository.apache.org/snapshots was cached in the local repository,
resolution will not be reattempted until the update interval of
apache.snapshots has elapsed or updates are forced -> [Help 1]
```
I tried again with `mvn -U dependency:tree` and the error became:
```
Failed to execute goal on project spark-assembly_2.10: Could not resolve
dependencies for project
org.apache.spark:spark-assembly_2.10:pom:1.3.0-SNAPSHOT: Could not find
artifact org.apache.spark:spark-repl_2.10:jar:1.3.0-SNAPSHOT in
apache.snapshots (http://repository.apache.org/snapshots) -> [Help 1]
```
This, and my limited maven-fu made me think I need to run a `mvn install
-DskipTests` to get `mvn dependency:tree` to work, but of course I just got a
bunch of build errors on the `install` command like:
```
[error]
/Users/ryan/c/spark/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/dsl/package.scala:314:
polymorphic expression cannot be instantiated to expected type;
[error] found : [T(in method
apply)]org.apache.spark.sql.catalyst.dsl.ScalaUdfBuilder[T(in method apply)]
[error] required:
org.apache.spark.sql.catalyst.dsl.package.ScalaUdfBuilder[T(in method
functionToUdfBuilder)]
[error] implicit def functionToUdfBuilder[T: TypeTag](func: Function1[_,
T]): ScalaUdfBuilder[T] = ScalaUdfBuilder(func)
[error]
^
```
...which tells me I probably need to `mvn clean` and try again.
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