Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/15672#discussion_r85787971
--- Diff: sql/core/src/test/resources/sql-tests/inputs/group-by.sql ---
@@ -15,3 +15,26 @@ select 'foo', approx_count_distinct(int_col) from myview
where int_col == 0 grou
-- group-by should not produce any rows (sort aggregate).
select 'foo', max(struct(int_col)) from myview where int_col == 0 group by
1;
+
+-- Test data.
+CREATE OR REPLACE TEMPORARY VIEW testData AS SELECT * FROM VALUES
+(1, 1), (1, 2), (2, 1), (2, 2), (3, 1), (3, 2), (null, 1), (3, null),
(null, null)
+AS testData(a, b);
--- End diff --
Also can we just augment the initial dataset rather than introducing a new
testData?
It'd be better to use one dataset.
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