kazuyukitanimura commented on code in PR #5033:
URL: https://github.com/apache/datafusion-comet/pull/5033#discussion_r3648795593
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spark/src/test/resources/sql-tests/expressions/math/pow.sql:
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@@ -15,27 +15,25 @@
-- specific language governing permissions and limitations
-- under the License.
+-- pow runs natively and matches Spark exactly, including edge cases such as
pow(0, -1) = Infinity.
+
statement
CREATE TABLE test_pow(base double, exp double) USING parquet
statement
INSERT INTO test_pow VALUES (0.0, -1), (2.0, 3.0), (0.0, 0.0), (-1.0, 2.0),
(-1.0, 0.5), (2.0, -1.0), (NULL, 2.0), (2.0, NULL), (cast('NaN' as double),
2.0), (cast('Infinity' as double), 2.0), (2.0, cast('Infinity' as double))
Review Comment:
negative infinity can be interesting too. we probably need a bit more
combinations.
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