Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/14075#discussion_r70106028
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/test/DataFrameReaderWriterSuite.scala
---
@@ -82,6 +82,32 @@ class DefaultSource
}
}
+/** Dummy provider with only RelationProvider and
CreatableRelationProvider. */
+class DefaultSourceWithoutUserSpecifiedSchema
+ extends RelationProvider
+ with CreatableRelationProvider {
+
+ case class FakeRelation(sqlContext: SQLContext) extends BaseRelation {
+ override def schema: StructType = StructType(Seq(StructField("a",
StringType)))
+ }
+
+ override def createRelation(
+ sqlContext: SQLContext,
+ parameters: Map[String, String]): BaseRelation = {
+ LastOptions.parameters = parameters
--- End diff --
hmmm, is it a convention to assign parameters to `LastOptions`? I think the
test can work without it.
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