dongjoon-hyun commented on a change in pull request #28764:
URL: https://github.com/apache/spark/pull/28764#discussion_r438500895
##########
File path:
sql/core/src/test/resources/sql-tests/results/postgreSQL/numeric.sql.out
##########
@@ -4423,6 +4423,176 @@ struct<>
+-- !query
+SELECT width_bucket(5.0, 3.0, 4.0, 0)
+-- !query schema
+struct<widthbucket(CAST(5.0 AS DOUBLE), CAST(3.0 AS DOUBLE), CAST(4.0 AS
DOUBLE), CAST(0 AS BIGINT)):bigint>
+-- !query output
+NULL
+
+
+-- !query
+SELECT width_bucket(5.0, 3.0, 4.0, -5)
+-- !query schema
+struct<widthbucket(CAST(5.0 AS DOUBLE), CAST(3.0 AS DOUBLE), CAST(4.0 AS
DOUBLE), CAST(-5 AS BIGINT)):bigint>
+-- !query output
+NULL
+
+
+-- !query
+SELECT width_bucket(3.5, 3.0, 3.0, 888)
+-- !query schema
+struct<widthbucket(CAST(3.5 AS DOUBLE), CAST(3.0 AS DOUBLE), CAST(3.0 AS
DOUBLE), CAST(888 AS BIGINT)):bigint>
+-- !query output
+NULL
+
+
+-- !query
+SELECT width_bucket(double(5.0), double(3.0), double(4.0), 0)
+-- !query schema
+struct<widthbucket(CAST(5.0 AS DOUBLE), CAST(3.0 AS DOUBLE), CAST(4.0 AS
DOUBLE), CAST(0 AS BIGINT)):bigint>
+-- !query output
+NULL
+
+
+-- !query
+SELECT width_bucket(double(5.0), double(3.0), double(4.0), -5)
+-- !query schema
+struct<widthbucket(CAST(5.0 AS DOUBLE), CAST(3.0 AS DOUBLE), CAST(4.0 AS
DOUBLE), CAST(-5 AS BIGINT)):bigint>
+-- !query output
+NULL
+
+
+-- !query
+SELECT width_bucket(double(3.5), double(3.0), double(3.0), 888)
+-- !query schema
+struct<widthbucket(CAST(3.5 AS DOUBLE), CAST(3.0 AS DOUBLE), CAST(3.0 AS
DOUBLE), CAST(888 AS BIGINT)):bigint>
+-- !query output
+NULL
+
+
+-- !query
+SELECT width_bucket('NaN', 3.0, 4.0, 888)
+-- !query schema
+struct<widthbucket(CAST(NaN AS DOUBLE), CAST(3.0 AS DOUBLE), CAST(4.0 AS
DOUBLE), CAST(888 AS BIGINT)):bigint>
+-- !query output
+NULL
+
+
+-- !query
+SELECT width_bucket(double(0), 'NaN', double(4.0), 888)
+-- !query schema
+struct<widthbucket(CAST(0 AS DOUBLE), CAST(NaN AS DOUBLE), CAST(4.0 AS
DOUBLE), CAST(888 AS BIGINT)):bigint>
+-- !query output
+NULL
+
+
+-- !query
+CREATE TABLE width_bucket_test (operand_num decimal(30,15), operand_f8 double)
USING parquet
+-- !query schema
+struct<>
+-- !query output
+
+
+
+-- !query
+INSERT INTO width_bucket_test VALUES
+ (-5.2, -5.2),
+ (-0.0000000001, -0.0000000001),
+ (0.000000000001, 0.000000000001),
+ (1, 1),
+ (1.99999999999999, 1.99999999999999),
+ (2, 2),
+ (2.00000000000001, 2.00000000000001),
+ (3, 3),
+ (4, 4),
+ (4.5, 4.5),
+ (5, 5),
+ (5.5, 5.5),
+ (6, 6),
+ (7, 7),
+ (8, 8),
+ (9, 9),
+ (9.99999999999999, 9.99999999999999),
+ (10, 10),
+ (10.0000000000001, 10.0000000000001)
+-- !query schema
+struct<>
+-- !query output
+
+
+
+-- !query
+SELECT
+ operand_num,
+ width_bucket(operand_num, 0, 10, 5) AS wb_1,
+ width_bucket(operand_f8, 0, 10, 5) AS wb_1f,
+ width_bucket(operand_num, 10, 0, 5) AS wb_2,
+ width_bucket(operand_f8, 10, 0, 5) AS wb_2f,
+ width_bucket(operand_num, 2, 8, 4) AS wb_3,
+ width_bucket(operand_f8, 2, 8, 4) AS wb_3f,
+ width_bucket(operand_num, 5.0, 5.5, 20) AS wb_4,
+ width_bucket(operand_f8, 5.0, 5.5, 20) AS wb_4f,
+ width_bucket(operand_num, -25, 25, 10) AS wb_5,
+ width_bucket(operand_f8, -25, 25, 10) AS wb_5f
+ FROM width_bucket_test
+-- !query schema
+struct<operand_num:decimal(30,15),wb_1:bigint,wb_1f:bigint,wb_2:bigint,wb_2f:bigint,wb_3:bigint,wb_3f:bigint,wb_4:bigint,wb_4f:bigint,wb_5:bigint,wb_5f:bigint>
+-- !query output
+-0.000000000100000 0 0 6 6 0 0 0
0 5 5
+-5.200000000000000 0 0 6 6 0 0 0
0 4 4
+0.000000000001000 1 1 5 5 0 0 0
0 6 6
+1.000000000000000 1 1 5 5 0 0 0
0 6 6
+1.999999999999990 1 1 5 5 0 0 0
0 6 6
+10.000000000000000 6 6 1 1 5 5 21
21 8 8
+10.000000000000100 6 6 0 0 5 5 21
21 8 8
+2.000000000000000 2 2 5 5 1 1 0
0 6 6
+2.000000000000010 2 2 4 4 1 1 0
0 6 6
+3.000000000000000 2 2 4 4 1 1 0
0 6 6
+4.000000000000000 3 3 4 4 2 2 0
0 6 6
+4.500000000000000 3 3 3 3 2 2 0
0 6 6
+5.000000000000000 3 3 3 3 3 3 1
1 7 7
+5.500000000000000 3 3 3 3 3 3 21
21 7 7
+6.000000000000000 4 4 3 3 3 3 21
21 7 7
+7.000000000000000 4 4 2 2 4 4 21
21 7 7
+8.000000000000000 5 5 2 2 5 5 21
21 7 7
+9.000000000000000 5 5 1 1 5 5 21
21 7 7
+9.999999999999990 5 5 1 1 5 5 21
21 7 7
+
Review comment:
It seems that `Postgres` output is sorted by `operand_num`. For easy
checking, do you think we can add `ORDER BY` from our side, too?
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