LuciferYang commented on a change in pull request #30351:
URL: https://github.com/apache/spark/pull/30351#discussion_r524880428
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/ScalaReflection.scala
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@@ -894,10 +893,6 @@ trait ScalaReflection extends Logging {
import universe._
- // The Predef.Map is scala.collection.immutable.Map.
- // Since the map values can be mutable, we explicitly import
scala.collection.Map at here.
- import scala.collection.Map
-
Review comment:
And after https://github.com/apache/spark/pull/12149, the `import
scala.collection.Map` in `trait ScalaReflection` become useless because the
last method to used `Map`(`def schemaFor(tpe: `Type`): Schema`) has been moved
from `trait ScalaReflection` to `object ScalaReflection`
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