Github user dilipbiswal commented on a diff in the pull request:
https://github.com/apache/spark/pull/9981#discussion_r47004826
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/JsonFunctionsSuite.scala ---
@@ -73,6 +73,10 @@ class JsonFunctionsSuite extends QueryTest with
SharedSQLContext {
checkAnswer(
df.select($"key", functions.json_tuple($"jstring", "f1", "f2", "f3",
"f4", "f5")),
expected)
+
+ checkAnswer(
+ df.selectExpr("key", "json_tuple(jstring, 'f1', 'f2', 'f3', 'f4',
'f5')"),
+ expected)
}
test("json_tuple filter and group") {
--- End diff --
@yhuai I found two test cases that i am going to link it for you to look
at. One is in lateral view and the other shows regular usage. Both these
include aliases of the form ci. Please take a look.
Regular usage
https://github.com/apache/spark/blob/149cd692ee2e127d79386fd8e584f4f70a2906ba/sql/core/src/test/scala/org/apache/spark/sql/JsonFunctionsSuite.scala#L78-#L84
Lateral view
https://github.com/apache/spark/blob/d83c2f9f0b08d6d5d369d9fae04cdb15448e7f0d/sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/SQLQuerySuite.scala#L1452-#L1466
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