viirya commented on a change in pull request #28764:
URL: https://github.com/apache/spark/pull/28764#discussion_r438466585
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File path: sql/core/src/test/resources/sql-tests/inputs/operators.sql
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@@ -81,3 +81,17 @@ select positive('-1.11'), positive(-1.11),
negative('-1.11'), negative(-1.11);
-- pmod
select pmod(-7, 2), pmod(0, 2), pmod(7, 0), pmod(7, null), pmod(null, 2),
pmod(null, null);
select pmod(cast(3.13 as decimal), cast(0 as decimal)), pmod(cast(2 as
smallint), cast(0 as smallint));
+
+-- width_bucket
+select width_bucket(5.35, 0.024, 10.06, 5);
+select width_bucket(5.35, 0.024, 10.06, 3 + 2);
+select width_bucket('5.35', '0.024', '10.06', '5');
+select width_bucket(5.35, 0.024, 10.06, 2.5);
+select width_bucket(5.35, 0.024, 10.06, 0.5);
+select width_bucket(null, 0.024, 10.06, 5);
+select width_bucket(5.35, null, 10.06, 5);
+select width_bucket(5.35, 0.024, null, -5);
+select width_bucket(5.35, 0.024, 10.06, null);
+select width_bucket(5.35, 0.024, 10.06, -5);
+select width_bucket(5.35, 0.024, 10.06, 9223372036854775807L); -- long max
value
+select width_bucket(5.35, 0.024, 10.06, 9223372036854775807L - 1);
Review comment:
Can we have test cases for min > max?
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