Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/1041#discussion_r13782741
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/SQLContext.scala ---
@@ -298,19 +298,27 @@ class SQLContext(@transient val sparkContext:
SparkContext)
/**
* Peek at the first row of the RDD and infer its schema.
- * TODO: We only support primitive types, add support for nested types.
*/
private[sql] def inferSchema(rdd: RDD[Map[String, _]]): SchemaRDD = {
+ import scala.collection.JavaConversions._
+ def typeFor(obj: Any): DataType = obj match {
--- End diff --
Seems it will not be necessary once the work on the type system finishes.
In #999, those similar methods are in JsonRDD. We will move those general
purpose stuff to the type system once #999 has been checked in.
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