bloomberg
diff --git a/‎sql/core/src/test/resources/sql-tests/inputs/pgSQL/int4.sql
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+--
+-- Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
+--
+--
+-- INT4
+-- https://github.com/postgres/postgres/blob/REL_12_BETA1/src/test/regress/sql/int4.sql
+--
+
+CREATE TABLE INT4_TBL(f1 int) USING parquet;
+
+-- [SPARK-28023] Trim the string when cast string type to other types
+INSERT INTO INT4_TBL VALUES (trim('   0  '));
+
+INSERT INTO INT4_TBL VALUES (trim('123456     '));
+
+INSERT INTO INT4_TBL VALUES (trim('    -123456'));
+
+-- [SPARK-27923] Invalid input syntax for integer: "34.5" at PostgreSQL
+-- INSERT INTO INT4_TBL(f1) VALUES ('34.5');
+
+-- largest and smallest values
+INSERT INTO INT4_TBL VALUES ('2147483647');
+
+INSERT INTO INT4_TBL VALUES ('-2147483647');
+
+-- [SPARK-27923] Spark SQL insert these bad inputs to NULL
+-- bad input values
+-- INSERT INTO INT4_TBL(f1) VALUES ('1000000000000');
+-- INSERT INTO INT4_TBL(f1) VALUES ('asdf');
+-- INSERT INTO INT4_TBL(f1) VALUES ('     ');
+-- INSERT INTO INT4_TBL(f1) VALUES ('   asdf   ');
+-- INSERT INTO INT4_TBL(f1) VALUES ('- 1234');
+-- INSERT INTO INT4_TBL(f1) VALUES ('123       5');
+-- INSERT INTO INT4_TBL(f1) VALUES ('');
+
+
+SELECT '' AS five, * FROM INT4_TBL;
+
+SELECT '' AS four, i.* FROM INT4_TBL i WHERE i.f1 <> smallint('0');
+
+SELECT '' AS four, i.* FROM INT4_TBL i WHERE i.f1 <> int('0');
+
+SELECT '' AS one, i.* FROM INT4_TBL i WHERE i.f1 = smallint('0');
+
+SELECT '' AS one, i.* FROM INT4_TBL i WHERE i.f1 = int('0');
+
+SELECT '' AS two, i.* FROM INT4_TBL i WHERE i.f1 < smallint('0');
+
+SELECT '' AS two, i.* FROM INT4_TBL i WHERE i.f1 < int('0');
+
+SELECT '' AS three, i.* FROM INT4_TBL i WHERE i.f1 <= smallint('0');
+
+SELECT '' AS three, i.* FROM INT4_TBL i WHERE i.f1 <= int('0');
+
+SELECT '' AS two, i.* FROM INT4_TBL i WHERE i.f1 > smallint('0');
+
+SELECT '' AS two, i.* FROM INT4_TBL i WHERE i.f1 > int('0');
+
+SELECT '' AS three, i.* FROM INT4_TBL i WHERE i.f1 >= smallint('0');
+
+SELECT '' AS three, i.* FROM INT4_TBL i WHERE i.f1 >= int('0');
+
+-- positive odds
+SELECT '' AS one, i.* FROM INT4_TBL i WHERE (i.f1 % smallint('2')) = smallint('1');
+
+-- any evens
+SELECT '' AS three, i.* FROM INT4_TBL i WHERE (i.f1 % int('2')) = smallint('0');
+
+-- [SPARK-28024] Incorrect value when out of range
+SELECT '' AS five, i.f1, i.f1 * smallint('2') AS x FROM INT4_TBL i;
+
+SELECT '' AS five, i.f1, i.f1 * smallint('2') AS x FROM INT4_TBL i
+WHERE abs(f1) < 1073741824;
+
+-- [SPARK-28024] Incorrect value when out of range
+SELECT '' AS five, i.f1, i.f1 * int('2') AS x FROM INT4_TBL i;
+
+SELECT '' AS five, i.f1, i.f1 * int('2') AS x FROM INT4_TBL i
+WHERE abs(f1) < 1073741824;
+
+-- [SPARK-28024] Incorrect value when out of range
+SELECT '' AS five, i.f1, i.f1 + smallint('2') AS x FROM INT4_TBL i;
+
+SELECT '' AS five, i.f1, i.f1 + smallint('2') AS x FROM INT4_TBL i
+WHERE f1 < 2147483646;
+
+-- [SPARK-28024] Incorrect value when out of range
+SELECT '' AS five, i.f1, i.f1 + int('2') AS x FROM INT4_TBL i;
+
+SELECT '' AS five, i.f1, i.f1 + int('2') AS x FROM INT4_TBL i
+WHERE f1 < 2147483646;
+
+-- [SPARK-28024] Incorrect value when out of range
+SELECT '' AS five, i.f1, i.f1 - smallint('2') AS x FROM INT4_TBL i;
+
+SELECT '' AS five, i.f1, i.f1 - smallint('2') AS x FROM INT4_TBL i
+WHERE f1 > -2147483647;
+
+-- [SPARK-28024] Incorrect value when out of range
+SELECT '' AS five, i.f1, i.f1 - int('2') AS x FROM INT4_TBL i;
+
+SELECT '' AS five, i.f1, i.f1 - int('2') AS x FROM INT4_TBL i
+WHERE f1 > -2147483647;
+
+SELECT '' AS five, i.f1, i.f1 / smallint('2') AS x FROM INT4_TBL i;
+
+SELECT '' AS five, i.f1, i.f1 / int('2') AS x FROM INT4_TBL i;
+
+--
+-- more complex expressions
+--
+
+-- variations on unary minus parsing
+SELECT -2+3 AS one;
+
+SELECT 4-2 AS two;
+
+SELECT 2- -1 AS three;
+
+SELECT 2 - -2 AS four;
+
+SELECT smallint('2') * smallint('2') = smallint('16') / smallint('4') AS true;
+
+SELECT int('2') * smallint('2') = smallint('16') / int('4') AS true;
+
+SELECT smallint('2') * int('2') = int('16') / smallint('4') AS true;
+
+SELECT int('1000') < int('999') AS false;
+
+-- [SPARK-28027] Our ! and !! has different meanings
+-- SELECT 4! AS twenty_four;
+
+-- SELECT !!3 AS six;
+
+SELECT 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 AS ten;
+
+-- [SPARK-2659] HiveQL: Division operator should always perform fractional division
+SELECT 2 + 2 / 2 AS three;
+
+SELECT (2 + 2) / 2 AS two;
+
+-- [SPARK-28027] Add bitwise shift left/right operators
+-- corner case
+SELECT string(shiftleft(int(-1), 31));
+SELECT string(int(shiftleft(int(-1), 31))+1);
+
+-- [SPARK-28024] Incorrect numeric values when out of range
+-- check sane handling of INT_MIN overflow cases
+-- SELECT (-2147483648)::int4 * (-1)::int4;
+-- SELECT (-2147483648)::int4 / (-1)::int4;
+SELECT int(-2147483648) % int(-1);
+-- SELECT (-2147483648)::int4 * (-1)::int2;
+-- SELECT (-2147483648)::int4 / (-1)::int2;
+SELECT int(-2147483648) % smallint(-1);
+
+-- [SPARK-28028] Cast numeric to integral type need round
+-- check rounding when casting from float
+SELECT x, int(x) AS int4_value
+FROM (VALUES double(-2.5),
+             double(-1.5),
+             double(-0.5),
+             double(0.0),
+             double(0.5),
+             double(1.5),
+             double(2.5)) t(x);
+
+-- [SPARK-28028] Cast numeric to integral type need round
+-- check rounding when casting from numeric
+SELECT x, int(x) AS int4_value
+FROM (VALUES cast(-2.5 as decimal(38, 18)),
+             cast(-1.5 as decimal(38, 18)),
+             cast(-0.5 as decimal(38, 18)),
+             cast(-0.0 as decimal(38, 18)),
+             cast(0.5 as decimal(38, 18)),
+             cast(1.5 as decimal(38, 18)),
+             cast(2.5 as decimal(38, 18))) t(x);
+
+DROP TABLE INT4_TBL;