Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/21439#discussion_r209461516
--- Diff: sql/core/src/test/resources/sql-tests/inputs/json-functions.sql
---
@@ -39,3 +39,8 @@ select from_json('{"a":1, "b":"2"}',
'struct<a:int,b:string>');
-- infer schema of json literal
select schema_of_json('{"c1":0, "c2":[1]}');
select from_json('{"c1":[1, 2, 3]}', schema_of_json('{"c1":[0]}'));
+
+-- from_json - array type
+select from_json('[1, 2, 3]', 'array<int>');
--- End diff --
Add more cases ?
select from_json('[3, null, 4]', 'array<int>')
select from_json('[3, "str", 4]', 'array<int>')
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