diff --git a/sql/core/src/main/scala/org/apache/spark/sql/json/JsonRDD.scala b/sql/core/src/main/scala/org/apache/spark/sql/json/JsonRDD.scala index d83bdc2f7ff9abf1bdda00fe1d49b08aaf960125..e54a2a36792727f8224b775aa8f6ba811b8c7d29 100644 --- a/sql/core/src/main/scala/org/apache/spark/sql/json/JsonRDD.scala +++ b/sql/core/src/main/scala/org/apache/spark/sql/json/JsonRDD.scala @@ -199,13 +199,12 @@ private[sql] object JsonRDD extends Logging { * type conflicts. */ private def typeOfArray(l: Seq[Any]): ArrayType = { - val containsNull = l.exists(v => v == null) val elements = l.flatMap(v => Option(v)) if (elements.isEmpty) { // If this JSON array is empty, we use NullType as a placeholder. // If this array is not empty in other JSON objects, we can resolve // the type after we have passed through all JSON objects. - ArrayType(NullType, containsNull) + ArrayType(NullType, containsNull = true) } else { val elementType = elements.map { e => e match { @@ -217,7 +216,7 @@ private[sql] object JsonRDD extends Logging { } }.reduce((type1: DataType, type2: DataType) => compatibleType(type1, type2)) - ArrayType(elementType, containsNull) + ArrayType(elementType, containsNull = true) } } @@ -245,7 +244,7 @@ private[sql] object JsonRDD extends Logging { // The value associated with the key is an array. // Handle inner structs of an array. def buildKeyPathForInnerStructs(v: Any, t: DataType): Seq[(String, DataType)] = t match { - case ArrayType(e: StructType, containsNull) => { + case ArrayType(e: StructType, _) => { // The elements of this arrays are structs. v.asInstanceOf[Seq[Map[String, Any]]].flatMap(Option(_)).flatMap { element => allKeysWithValueTypes(element) @@ -253,7 +252,7 @@ private[sql] object JsonRDD extends Logging { case (k, t) => (s"$key.$k", t) } } - case ArrayType(t1, containsNull) => + case ArrayType(t1, _) => v.asInstanceOf[Seq[Any]].flatMap(Option(_)).flatMap { element => buildKeyPathForInnerStructs(element, t1) } diff --git a/sql/core/src/test/scala/org/apache/spark/sql/json/JsonSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/json/JsonSuite.scala index 005f20b96df790560b62a78b6bf229f92a1b683a..9d94d3406acfb8f85c4223e141371775cff636c6 100644 --- a/sql/core/src/test/scala/org/apache/spark/sql/json/JsonSuite.scala +++ b/sql/core/src/test/scala/org/apache/spark/sql/json/JsonSuite.scala @@ -248,26 +248,26 @@ class JsonSuite extends QueryTest { val jsonDF = jsonRDD(complexFieldAndType1) val expectedSchema = StructType( - StructField("arrayOfArray1", ArrayType(ArrayType(StringType, false), false), true) :: - StructField("arrayOfArray2", ArrayType(ArrayType(DoubleType, false), false), true) :: - StructField("arrayOfBigInteger", ArrayType(DecimalType.Unlimited, false), true) :: - StructField("arrayOfBoolean", ArrayType(BooleanType, false), true) :: - StructField("arrayOfDouble", ArrayType(DoubleType, false), true) :: - StructField("arrayOfInteger", ArrayType(LongType, false), true) :: - StructField("arrayOfLong", ArrayType(LongType, false), true) :: + StructField("arrayOfArray1", ArrayType(ArrayType(StringType, true), true), true) :: + StructField("arrayOfArray2", ArrayType(ArrayType(DoubleType, true), true), true) :: + StructField("arrayOfBigInteger", ArrayType(DecimalType.Unlimited, true), true) :: + StructField("arrayOfBoolean", ArrayType(BooleanType, true), true) :: + StructField("arrayOfDouble", ArrayType(DoubleType, true), true) :: + StructField("arrayOfInteger", ArrayType(LongType, true), true) :: + StructField("arrayOfLong", ArrayType(LongType, true), true) :: StructField("arrayOfNull", ArrayType(StringType, true), true) :: - StructField("arrayOfString", ArrayType(StringType, false), true) :: + StructField("arrayOfString", ArrayType(StringType, true), true) :: StructField("arrayOfStruct", ArrayType( StructType( StructField("field1", BooleanType, true) :: StructField("field2", StringType, true) :: - StructField("field3", StringType, true) :: Nil), false), true) :: + StructField("field3", StringType, true) :: Nil), true), true) :: StructField("struct", StructType( StructField("field1", BooleanType, true) :: StructField("field2", DecimalType.Unlimited, true) :: Nil), true) :: StructField("structWithArrayFields", StructType( - StructField("field1", ArrayType(LongType, false), true) :: - StructField("field2", ArrayType(StringType, false), true) :: Nil), true) :: Nil) + StructField("field1", ArrayType(LongType, true), true) :: + StructField("field2", ArrayType(StringType, true), true) :: Nil), true) :: Nil) assert(expectedSchema === jsonDF.schema) @@ -487,7 +487,7 @@ class JsonSuite extends QueryTest { val jsonDF = jsonRDD(complexFieldValueTypeConflict) val expectedSchema = StructType( - StructField("array", ArrayType(LongType, false), true) :: + StructField("array", ArrayType(LongType, true), true) :: StructField("num_struct", StringType, true) :: StructField("str_array", StringType, true) :: StructField("struct", StructType( @@ -513,8 +513,8 @@ class JsonSuite extends QueryTest { val expectedSchema = StructType( StructField("array1", ArrayType(StringType, true), true) :: StructField("array2", ArrayType(StructType( - StructField("field", LongType, true) :: Nil), false), true) :: - StructField("array3", ArrayType(StringType, false), true) :: Nil) + StructField("field", LongType, true) :: Nil), true), true) :: + StructField("array3", ArrayType(StringType, true), true) :: Nil) assert(expectedSchema === jsonDF.schema) @@ -541,7 +541,7 @@ class JsonSuite extends QueryTest { val expectedSchema = StructType( StructField("a", BooleanType, true) :: StructField("b", LongType, true) :: - StructField("c", ArrayType(LongType, false), true) :: + StructField("c", ArrayType(LongType, true), true) :: StructField("d", StructType( StructField("field", BooleanType, true) :: Nil), true) :: StructField("e", StringType, true) :: Nil) @@ -835,15 +835,15 @@ class JsonSuite extends QueryTest { val schema = StructType( StructField("field1", - ArrayType(ArrayType(ArrayType(ArrayType(StringType, false), false), true), false), true) :: + ArrayType(ArrayType(ArrayType(ArrayType(StringType, true), true), true), true), true) :: StructField("field2", ArrayType(ArrayType( - StructType(StructField("Test", LongType, true) :: Nil), false), true), true) :: + StructType(StructField("Test", LongType, true) :: Nil), true), true), true) :: StructField("field3", ArrayType(ArrayType( - StructType(StructField("Test", StringType, true) :: Nil), true), false), true) :: + StructType(StructField("Test", StringType, true) :: Nil), true), true), true) :: StructField("field4", - ArrayType(ArrayType(ArrayType(LongType, false), true), false), true) :: Nil) + ArrayType(ArrayType(ArrayType(LongType, true), true), true), true) :: Nil) assert(schema === jsonDF.schema)