459 lines
11 KiB
Plaintext
459 lines
11 KiB
Plaintext
--
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-- INT4
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--
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-- int4_tbl was already created and filled in test_setup.sql.
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-- Here we just try to insert bad values.
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INSERT INTO INT4_TBL(f1) VALUES ('34.5');
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ERROR: invalid input syntax for type integer: "34.5"
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LINE 1: INSERT INTO INT4_TBL(f1) VALUES ('34.5');
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^
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INSERT INTO INT4_TBL(f1) VALUES ('1000000000000');
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ERROR: value "1000000000000" is out of range for type integer
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LINE 1: INSERT INTO INT4_TBL(f1) VALUES ('1000000000000');
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^
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INSERT INTO INT4_TBL(f1) VALUES ('asdf');
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ERROR: invalid input syntax for type integer: "asdf"
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LINE 1: INSERT INTO INT4_TBL(f1) VALUES ('asdf');
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^
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INSERT INTO INT4_TBL(f1) VALUES (' ');
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ERROR: invalid input syntax for type integer: " "
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LINE 1: INSERT INTO INT4_TBL(f1) VALUES (' ');
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^
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INSERT INTO INT4_TBL(f1) VALUES (' asdf ');
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ERROR: invalid input syntax for type integer: " asdf "
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LINE 1: INSERT INTO INT4_TBL(f1) VALUES (' asdf ');
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^
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INSERT INTO INT4_TBL(f1) VALUES ('- 1234');
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ERROR: invalid input syntax for type integer: "- 1234"
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LINE 1: INSERT INTO INT4_TBL(f1) VALUES ('- 1234');
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^
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INSERT INTO INT4_TBL(f1) VALUES ('123 5');
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ERROR: invalid input syntax for type integer: "123 5"
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LINE 1: INSERT INTO INT4_TBL(f1) VALUES ('123 5');
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^
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INSERT INTO INT4_TBL(f1) VALUES ('');
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ERROR: invalid input syntax for type integer: ""
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LINE 1: INSERT INTO INT4_TBL(f1) VALUES ('');
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^
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SELECT * FROM INT4_TBL;
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f1
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-------------
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0
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123456
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-123456
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2147483647
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-2147483647
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(5 rows)
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-- Also try it with non-error-throwing API
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SELECT pg_input_is_valid('34', 'int4');
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pg_input_is_valid
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-------------------
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t
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(1 row)
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SELECT pg_input_is_valid('asdf', 'int4');
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pg_input_is_valid
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-------------------
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f
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(1 row)
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SELECT pg_input_is_valid('1000000000000', 'int4');
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pg_input_is_valid
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-------------------
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f
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(1 row)
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SELECT pg_input_error_message('1000000000000', 'int4');
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pg_input_error_message
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--------------------------------------------------------
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value "1000000000000" is out of range for type integer
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(1 row)
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SELECT i.* FROM INT4_TBL i WHERE i.f1 <> int2 '0';
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f1
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-------------
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123456
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-123456
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2147483647
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-2147483647
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(4 rows)
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SELECT i.* FROM INT4_TBL i WHERE i.f1 <> int4 '0';
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f1
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-------------
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123456
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-123456
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2147483647
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-2147483647
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(4 rows)
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SELECT i.* FROM INT4_TBL i WHERE i.f1 = int2 '0';
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f1
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----
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0
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(1 row)
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SELECT i.* FROM INT4_TBL i WHERE i.f1 = int4 '0';
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f1
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----
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0
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(1 row)
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SELECT i.* FROM INT4_TBL i WHERE i.f1 < int2 '0';
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f1
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-------------
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-123456
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-2147483647
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(2 rows)
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SELECT i.* FROM INT4_TBL i WHERE i.f1 < int4 '0';
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f1
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-------------
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-123456
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-2147483647
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(2 rows)
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SELECT i.* FROM INT4_TBL i WHERE i.f1 <= int2 '0';
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f1
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-------------
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0
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-123456
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-2147483647
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(3 rows)
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SELECT i.* FROM INT4_TBL i WHERE i.f1 <= int4 '0';
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f1
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-------------
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0
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-123456
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-2147483647
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(3 rows)
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SELECT i.* FROM INT4_TBL i WHERE i.f1 > int2 '0';
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f1
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------------
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123456
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2147483647
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(2 rows)
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SELECT i.* FROM INT4_TBL i WHERE i.f1 > int4 '0';
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f1
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------------
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123456
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2147483647
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(2 rows)
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SELECT i.* FROM INT4_TBL i WHERE i.f1 >= int2 '0';
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f1
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------------
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0
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123456
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2147483647
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(3 rows)
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SELECT i.* FROM INT4_TBL i WHERE i.f1 >= int4 '0';
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f1
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------------
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0
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123456
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2147483647
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(3 rows)
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-- positive odds
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SELECT i.* FROM INT4_TBL i WHERE (i.f1 % int2 '2') = int2 '1';
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f1
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------------
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2147483647
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(1 row)
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-- any evens
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SELECT i.* FROM INT4_TBL i WHERE (i.f1 % int4 '2') = int2 '0';
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f1
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---------
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0
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123456
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-123456
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(3 rows)
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SELECT i.f1, i.f1 * int2 '2' AS x FROM INT4_TBL i;
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ERROR: integer out of range
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SELECT i.f1, i.f1 * int2 '2' AS x FROM INT4_TBL i
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WHERE abs(f1) < 1073741824;
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f1 | x
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---------+---------
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0 | 0
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123456 | 246912
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-123456 | -246912
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(3 rows)
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SELECT i.f1, i.f1 * int4 '2' AS x FROM INT4_TBL i;
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ERROR: integer out of range
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SELECT i.f1, i.f1 * int4 '2' AS x FROM INT4_TBL i
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WHERE abs(f1) < 1073741824;
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f1 | x
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---------+---------
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0 | 0
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123456 | 246912
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-123456 | -246912
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(3 rows)
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SELECT i.f1, i.f1 + int2 '2' AS x FROM INT4_TBL i;
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ERROR: integer out of range
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SELECT i.f1, i.f1 + int2 '2' AS x FROM INT4_TBL i
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WHERE f1 < 2147483646;
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f1 | x
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-------------+-------------
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0 | 2
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123456 | 123458
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-123456 | -123454
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-2147483647 | -2147483645
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(4 rows)
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SELECT i.f1, i.f1 + int4 '2' AS x FROM INT4_TBL i;
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ERROR: integer out of range
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SELECT i.f1, i.f1 + int4 '2' AS x FROM INT4_TBL i
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WHERE f1 < 2147483646;
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f1 | x
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-------------+-------------
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0 | 2
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123456 | 123458
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-123456 | -123454
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-2147483647 | -2147483645
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(4 rows)
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SELECT i.f1, i.f1 - int2 '2' AS x FROM INT4_TBL i;
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ERROR: integer out of range
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SELECT i.f1, i.f1 - int2 '2' AS x FROM INT4_TBL i
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WHERE f1 > -2147483647;
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f1 | x
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------------+------------
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0 | -2
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123456 | 123454
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-123456 | -123458
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2147483647 | 2147483645
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(4 rows)
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SELECT i.f1, i.f1 - int4 '2' AS x FROM INT4_TBL i;
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ERROR: integer out of range
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SELECT i.f1, i.f1 - int4 '2' AS x FROM INT4_TBL i
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WHERE f1 > -2147483647;
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f1 | x
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------------+------------
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0 | -2
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123456 | 123454
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-123456 | -123458
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2147483647 | 2147483645
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(4 rows)
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SELECT i.f1, i.f1 / int2 '2' AS x FROM INT4_TBL i;
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f1 | x
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-------------+-------------
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0 | 0
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123456 | 61728
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-123456 | -61728
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2147483647 | 1073741823
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-2147483647 | -1073741823
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(5 rows)
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SELECT i.f1, i.f1 / int4 '2' AS x FROM INT4_TBL i;
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f1 | x
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-------------+-------------
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0 | 0
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123456 | 61728
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-123456 | -61728
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2147483647 | 1073741823
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-2147483647 | -1073741823
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(5 rows)
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--
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-- more complex expressions
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--
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-- variations on unary minus parsing
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SELECT -2+3 AS one;
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one
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-----
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1
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(1 row)
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SELECT 4-2 AS two;
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two
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-----
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2
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(1 row)
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SELECT 2- -1 AS three;
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three
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-------
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3
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(1 row)
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SELECT 2 - -2 AS four;
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four
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------
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4
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(1 row)
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SELECT int2 '2' * int2 '2' = int2 '16' / int2 '4' AS true;
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true
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------
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t
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(1 row)
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SELECT int4 '2' * int2 '2' = int2 '16' / int4 '4' AS true;
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true
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------
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t
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(1 row)
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SELECT int2 '2' * int4 '2' = int4 '16' / int2 '4' AS true;
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true
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------
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t
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(1 row)
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SELECT int4 '1000' < int4 '999' AS false;
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false
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-------
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f
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(1 row)
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SELECT 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 AS ten;
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ten
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-----
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10
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(1 row)
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SELECT 2 + 2 / 2 AS three;
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three
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-------
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3
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(1 row)
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SELECT (2 + 2) / 2 AS two;
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two
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-----
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2
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(1 row)
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-- corner case
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SELECT (-1::int4<<31)::text;
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text
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-------------
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-2147483648
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(1 row)
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SELECT ((-1::int4<<31)+1)::text;
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text
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-------------
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-2147483647
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(1 row)
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-- check sane handling of INT_MIN overflow cases
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SELECT (-2147483648)::int4 * (-1)::int4;
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ERROR: integer out of range
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SELECT (-2147483648)::int4 / (-1)::int4;
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ERROR: integer out of range
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SELECT (-2147483648)::int4 % (-1)::int4;
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?column?
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----------
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0
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(1 row)
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SELECT (-2147483648)::int4 * (-1)::int2;
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ERROR: integer out of range
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SELECT (-2147483648)::int4 / (-1)::int2;
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ERROR: integer out of range
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SELECT (-2147483648)::int4 % (-1)::int2;
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?column?
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----------
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0
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(1 row)
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-- check rounding when casting from float
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SELECT x, x::int4 AS int4_value
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FROM (VALUES (-2.5::float8),
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(-1.5::float8),
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(-0.5::float8),
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(0.0::float8),
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(0.5::float8),
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(1.5::float8),
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(2.5::float8)) t(x);
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x | int4_value
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------+------------
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-2.5 | -2
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-1.5 | -2
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-0.5 | 0
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0 | 0
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0.5 | 0
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1.5 | 2
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2.5 | 2
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(7 rows)
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-- check rounding when casting from numeric
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SELECT x, x::int4 AS int4_value
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FROM (VALUES (-2.5::numeric),
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(-1.5::numeric),
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(-0.5::numeric),
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(0.0::numeric),
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(0.5::numeric),
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(1.5::numeric),
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(2.5::numeric)) t(x);
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x | int4_value
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------+------------
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-2.5 | -3
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-1.5 | -2
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-0.5 | -1
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0.0 | 0
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0.5 | 1
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1.5 | 2
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2.5 | 3
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(7 rows)
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-- test gcd()
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SELECT a, b, gcd(a, b), gcd(a, -b), gcd(b, a), gcd(-b, a)
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FROM (VALUES (0::int4, 0::int4),
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(0::int4, 6410818::int4),
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(61866666::int4, 6410818::int4),
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(-61866666::int4, 6410818::int4),
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((-2147483648)::int4, 1::int4),
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((-2147483648)::int4, 2147483647::int4),
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((-2147483648)::int4, 1073741824::int4)) AS v(a, b);
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a | b | gcd | gcd | gcd | gcd
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-------------+------------+------------+------------+------------+------------
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0 | 0 | 0 | 0 | 0 | 0
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0 | 6410818 | 6410818 | 6410818 | 6410818 | 6410818
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61866666 | 6410818 | 1466 | 1466 | 1466 | 1466
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-61866666 | 6410818 | 1466 | 1466 | 1466 | 1466
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-2147483648 | 1 | 1 | 1 | 1 | 1
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-2147483648 | 2147483647 | 1 | 1 | 1 | 1
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-2147483648 | 1073741824 | 1073741824 | 1073741824 | 1073741824 | 1073741824
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(7 rows)
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SELECT gcd((-2147483648)::int4, 0::int4); -- overflow
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ERROR: integer out of range
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SELECT gcd((-2147483648)::int4, (-2147483648)::int4); -- overflow
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ERROR: integer out of range
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-- test lcm()
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SELECT a, b, lcm(a, b), lcm(a, -b), lcm(b, a), lcm(-b, a)
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FROM (VALUES (0::int4, 0::int4),
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(0::int4, 42::int4),
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(42::int4, 42::int4),
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(330::int4, 462::int4),
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(-330::int4, 462::int4),
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((-2147483648)::int4, 0::int4)) AS v(a, b);
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a | b | lcm | lcm | lcm | lcm
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-------------+-----+------+------+------+------
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0 | 0 | 0 | 0 | 0 | 0
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0 | 42 | 0 | 0 | 0 | 0
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42 | 42 | 42 | 42 | 42 | 42
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330 | 462 | 2310 | 2310 | 2310 | 2310
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-330 | 462 | 2310 | 2310 | 2310 | 2310
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-2147483648 | 0 | 0 | 0 | 0 | 0
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(6 rows)
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SELECT lcm((-2147483648)::int4, 1::int4); -- overflow
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ERROR: integer out of range
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SELECT lcm(2147483647::int4, 2147483646::int4); -- overflow
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ERROR: integer out of range
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