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_r403770485
##########
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),
Review comment:
This is different from the example I gave you. Do you have any reason to
prefer `"""` here? Usually, Apache Spark prefer to use a simple form `"` than
`"""`.
- https://github.com/apache/spark/pull/27759#discussion_r400594807
```
Seq(
("", null),
("[]", 0),
("[1,2,3]", 3),
("[[1],[2,3],[]]", 3),
```
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