Avoid cast input of UDF as double in the failed test in udf-aggregates_part1.sql

Author: HyukjinKwon

sql/core/src/test/resources/sql-tests/inputs/udf/pgSQL/udf-aggregates_part1.sql

@@ -78,7 +78,7 @@ FROM (VALUES ('-Infinity'), ('Infinity')) v(x);
 -- test accuracy with a large input offset
 SELECT CAST(avg(udf(CAST(x AS DOUBLE))) AS int), CAST(udf(var_pop(CAST(x AS DOUBLE))) AS decimal(10,3))
 FROM (VALUES (100000003), (100000004), (100000006), (100000007)) v(x);
-SELECT CAST(avg(udf(CAST(x AS DOUBLE))) AS long), CAST(udf(var_pop(CAST(x AS DOUBLE))) AS decimal(10,3))
+SELECT CAST(avg(udf(x)) AS long), CAST(udf(var_pop(CAST(x AS DOUBLE))) AS decimal(10,3))
 FROM (VALUES (7000000000005), (7000000000007)) v(x);
 
 -- SQL2003 binary aggregates [SPARK-23907]

sql/core/src/test/resources/sql-tests/results/udf/pgSQL/udf-aggregates_part1.sql.out

@@ -271,10 +271,10 @@ struct<CAST(avg(CAST(udf(cast(x as double)) AS DOUBLE)) AS INT):int,CAST(udf(var
 
 
 -- !query 33
-SELECT CAST(avg(udf(CAST(x AS DOUBLE))) AS long), CAST(udf(var_pop(CAST(x AS DOUBLE))) AS decimal(10,3))
+SELECT CAST(avg(udf(x)) AS long), CAST(udf(var_pop(CAST(x AS DOUBLE))) AS decimal(10,3))
 FROM (VALUES (7000000000005), (7000000000007)) v(x)
 -- !query 33 schema
-struct<CAST(avg(CAST(udf(cast(x as double)) AS DOUBLE)) AS BIGINT):bigint,CAST(udf(var_pop(cast(x as double))) AS DECIMAL(10,3)):decimal(10,3)>
+struct<CAST(avg(CAST(udf(x) AS DOUBLE)) AS BIGINT):bigint,CAST(udf(var_pop(cast(x as double))) AS DECIMAL(10,3)):decimal(10,3)>
 -- !query 33 output
 7000000000006	1