dongjoon-hyun commented on a change in pull request #26438: [SPARK-29408][SQL]
Support sign before `interval` in interval literals
URL: https://github.com/apache/spark/pull/26438#discussion_r344470780
##########
File path: sql/core/src/test/resources/sql-tests/inputs/interval.sql
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@@ -41,3 +41,20 @@ select max(cast(v as interval)) from VALUES ('1 seconds'),
('4 seconds'), ('3 se
-- min
select min(cast(v as interval)) from VALUES ('1 seconds'), ('4 seconds'), ('3
seconds') t(v);
+
+-- multiply and divide an interval by a number
+select 3 * (timestamp'2019-10-15 10:11:12.001002' - date'2019-10-15');
+select interval 4 month 2 weeks 3 microseconds * 1.5;
+select (timestamp'2019-10-15' - timestamp'2019-10-14') / 1.5;
+
+-- interval operation with null and zero case
+select interval '2 seconds' / 0;
+select interval '2 seconds' / null;
+select interval '2 seconds' * null;
+select null * interval '2 seconds';
Review comment:
+1 for this moving from `datetime.sql` to `interval.sql`.
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