Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/18930#discussion_r133507734
--- Diff: sql/core/src/test/resources/sql-tests/inputs/json-functions.sql
---
@@ -20,3 +20,9 @@ select from_json('{"a":1}', 'a InvalidType');
select from_json('{"a":1}', 'a INT', named_struct('mode', 'PERMISSIVE'));
select from_json('{"a":1}', 'a INT', map('mode', 1));
select from_json();
+-- json_tuple
+describe function json_tuple;
+describe function extended json_tuple;
+select json_tuple('{"a" : 1, "b" : 2}', cast(NULL AS STRING), 'b',
cast(NULL AS STRING), 'a')
+create temporary view jsonTable(jsonField, a, b) as select * from values
'{"a": 1, "b": 2}', 'a', 'b';
--- End diff --
To be consistent with the other SQL commands, use upper cases for SQL
keywords
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