Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/23086#discussion_r237110747
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/DataFrameReader.scala ---
@@ -38,7 +38,7 @@ import org.apache.spark.sql.execution.datasources.jdbc._
import
org.apache.spark.sql.execution.datasources.json.TextInputJsonDataSource
import org.apache.spark.sql.execution.datasources.v2.DataSourceV2Relation
import org.apache.spark.sql.execution.datasources.v2.DataSourceV2Utils
-import org.apache.spark.sql.sources.v2.{BatchReadSupportProvider,
DataSourceOptions, DataSourceV2}
+import org.apache.spark.sql.sources.v2._
--- End diff --
It's the IDE that turns it into wildcard, because it gets too long.
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