cloud-fan commented on a change in pull request #26325: [SPARK-29663][SQL]
Support sum with interval type values
URL: https://github.com/apache/spark/pull/26325#discussion_r341981036
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File path: sql/core/src/test/resources/sql-tests/inputs/group-by.sql
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@@ -162,3 +162,34 @@ SELECT count(*) FROM test_agg WHERE count(*) > 1L;
SELECT count(*) FROM test_agg WHERE count(*) + 1L > 1L;
SELECT count(*) FROM test_agg WHERE k = 1 or k = 2 or count(*) + 1L > 1L or
max(k) > 1;
+-- sum interval values
+-- null
+select sum(cast(v as interval)) from VALUES ('1 seconds'), ('2 seconds'),
(null) t(v) where v is null;
+
+-- empty set
+select sum(cast(v as interval)) from VALUES ('1 seconds'), ('2 seconds'),
(null) t(v) where 1=0;
+
+--
+select sum(cast(v as interval)) from VALUES ('1 seconds'), ('2 seconds'),
(null) t(v);
+select sum(cast(v as interval)) from VALUES ('-1 seconds'), ('2 seconds'),
(null) t(v);
+select sum(cast(v as interval)) from VALUES ('-1 seconds'), ('-2 seconds'),
(null) t(v);
+select sum(cast(v as interval)) from VALUES ('-1 weeks'), ('2 seconds'),
(null) t(v);
+
+--group by
Review comment:
one space after `--`
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