dongjoon-hyun commented on a change in pull request #24179: [SPARK-27241][SQL]
Support map_keys and map_values in SelectedField
URL: https://github.com/apache/spark/pull/24179#discussion_r268415243
##########
File path:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/SelectedFieldSuite.scala
##########
@@ -394,6 +405,91 @@ class SelectedFieldSuite extends SparkFunSuite with
BeforeAndAfterAll {
:: Nil)))
}
+ // |-- col1: string (nullable = false)
+ // |-- col2: map (nullable = true)
+ // | |-- key: struct (containsNull = false)
+ // | | |-- field1: string (nullable = true)
+ // | | |-- field2: integer (nullable = true)
+ // | |-- value: array (valueContainsNull = true)
+ // | | |-- element: struct (containsNull = false)
+ // | | | |-- field3: struct (nullable = true)
+ // | | | | |-- subfield1: integer (nullable = true)
+ // | | | | |-- subfield2: integer (nullable = true)
+ private val mapWithStructKey = StructType(Array(ignoredField,
+ StructField("col2", MapType(StructType(
+ StructField("field1", StringType) ::
+ StructField("field2", IntegerType) :: Nil),
+ ArrayType(StructType(
+ StructField("field3", StructType(
+ StructField("subfield1", IntegerType) ::
+ StructField("subfield2", IntegerType) :: Nil)) :: Nil), containsNull
= false)))))
+
+ testSelect(mapWithStructKey, "map_keys(col2).field1 as foo") {
+ StructField("col2", MapType(StructType(
+ StructField("field1", StringType) :: Nil),
Review comment:
```scala
- StructField("col2", MapType(StructType(
- StructField("field1", StringType) :: Nil),
+ StructField("col2", MapType(
+ StructType(StructField("field1", StringType) :: Nil),
```
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