dongjoon-hyun commented on a change in pull request #27759: [SPARK-31008][SQL]
Support json_array_length function
URL: https://github.com/apache/spark/pull/27759#discussion_r403770169
##########
File path:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/JsonExpressionsSuite.scala
##########
@@ -790,4 +790,27 @@ class JsonExpressionsSuite extends SparkFunSuite with
ExpressionEvalHelper with
checkDecimalInfer(_, """struct<d:decimal(7,3)>""")
}
}
+
+ test("Length of JSON array") {
+ Seq(
+ ("""""", null),
+ ("""[1,2,3]""", 3),
+ ("""[]""", 0),
+ ("""[[1],[2,3],[]]""", 3),
+ ("""[{"a":123},{"b":"hello"}]""", 2),
+ ("""[1,2,3,[33,44],{"key":[2,3,4]}]""", 5),
+ ("""[1,2,3,4,5""", null),
+ ("""Random String""", null)
+ ).foreach{
Review comment:
nit. `).foreach{` -> `).foreach {`
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