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faff8f8e47
This allows underscores to be used in integer and numeric literals,
and their corresponding type input functions, for visual grouping.
For example:
1_500_000_000
3.14159_26535_89793
0xffff_ffff
0b_1001_0001
A single underscore is allowed between any 2 digits, or immediately
after the base prefix indicator of non-decimal integers, per SQL:202x
draft.
Peter Eisentraut and Dean Rasheed
Discussion: https://postgr.es/m/84aae844-dc55-a4be-86d9-4f0fa405cc97%40enterprisedb.com
157 lines
3.8 KiB
SQL
157 lines
3.8 KiB
SQL
--
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-- INT2
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--
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-- int2_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 INT2_TBL(f1) VALUES ('34.5');
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INSERT INTO INT2_TBL(f1) VALUES ('100000');
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INSERT INTO INT2_TBL(f1) VALUES ('asdf');
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INSERT INTO INT2_TBL(f1) VALUES (' ');
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INSERT INTO INT2_TBL(f1) VALUES ('- 1234');
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INSERT INTO INT2_TBL(f1) VALUES ('4 444');
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INSERT INTO INT2_TBL(f1) VALUES ('123 dt');
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INSERT INTO INT2_TBL(f1) VALUES ('');
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SELECT * FROM INT2_TBL;
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-- Also try it with non-error-throwing API
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SELECT pg_input_is_valid('34', 'int2');
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SELECT pg_input_is_valid('asdf', 'int2');
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SELECT pg_input_is_valid('50000', 'int2');
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SELECT pg_input_error_message('50000', 'int2');
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-- While we're here, check int2vector as well
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SELECT pg_input_is_valid(' 1 3 5 ', 'int2vector');
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SELECT pg_input_error_message('1 asdf', 'int2vector');
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SELECT pg_input_error_message('50000', 'int2vector');
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SELECT * FROM INT2_TBL AS f(a, b);
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SELECT * FROM (TABLE int2_tbl) AS s (a, b);
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SELECT i.* FROM INT2_TBL i WHERE i.f1 <> int2 '0';
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SELECT i.* FROM INT2_TBL i WHERE i.f1 <> int4 '0';
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SELECT i.* FROM INT2_TBL i WHERE i.f1 = int2 '0';
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SELECT i.* FROM INT2_TBL i WHERE i.f1 = int4 '0';
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SELECT i.* FROM INT2_TBL i WHERE i.f1 < int2 '0';
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SELECT i.* FROM INT2_TBL i WHERE i.f1 < int4 '0';
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SELECT i.* FROM INT2_TBL i WHERE i.f1 <= int2 '0';
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SELECT i.* FROM INT2_TBL i WHERE i.f1 <= int4 '0';
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SELECT i.* FROM INT2_TBL i WHERE i.f1 > int2 '0';
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SELECT i.* FROM INT2_TBL i WHERE i.f1 > int4 '0';
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SELECT i.* FROM INT2_TBL i WHERE i.f1 >= int2 '0';
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SELECT i.* FROM INT2_TBL i WHERE i.f1 >= int4 '0';
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-- positive odds
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SELECT i.* FROM INT2_TBL i WHERE (i.f1 % int2 '2') = int2 '1';
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-- any evens
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SELECT i.* FROM INT2_TBL i WHERE (i.f1 % int4 '2') = int2 '0';
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SELECT i.f1, i.f1 * int2 '2' AS x FROM INT2_TBL i;
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SELECT i.f1, i.f1 * int2 '2' AS x FROM INT2_TBL i
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WHERE abs(f1) < 16384;
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SELECT i.f1, i.f1 * int4 '2' AS x FROM INT2_TBL i;
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SELECT i.f1, i.f1 + int2 '2' AS x FROM INT2_TBL i;
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SELECT i.f1, i.f1 + int2 '2' AS x FROM INT2_TBL i
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WHERE f1 < 32766;
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SELECT i.f1, i.f1 + int4 '2' AS x FROM INT2_TBL i;
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SELECT i.f1, i.f1 - int2 '2' AS x FROM INT2_TBL i;
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SELECT i.f1, i.f1 - int2 '2' AS x FROM INT2_TBL i
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WHERE f1 > -32767;
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SELECT i.f1, i.f1 - int4 '2' AS x FROM INT2_TBL i;
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SELECT i.f1, i.f1 / int2 '2' AS x FROM INT2_TBL i;
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SELECT i.f1, i.f1 / int4 '2' AS x FROM INT2_TBL i;
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-- corner cases
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SELECT (-1::int2<<15)::text;
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SELECT ((-1::int2<<15)+1::int2)::text;
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-- check sane handling of INT16_MIN overflow cases
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SELECT (-32768)::int2 * (-1)::int2;
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SELECT (-32768)::int2 / (-1)::int2;
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SELECT (-32768)::int2 % (-1)::int2;
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-- check rounding when casting from float
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SELECT x, x::int2 AS int2_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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-- check rounding when casting from numeric
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SELECT x, x::int2 AS int2_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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-- non-decimal literals
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SELECT int2 '0b100101';
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SELECT int2 '0o273';
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SELECT int2 '0x42F';
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SELECT int2 '0b';
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SELECT int2 '0o';
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SELECT int2 '0x';
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-- cases near overflow
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SELECT int2 '0b111111111111111';
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SELECT int2 '0b1000000000000000';
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SELECT int2 '0o77777';
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SELECT int2 '0o100000';
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SELECT int2 '0x7FFF';
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SELECT int2 '0x8000';
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SELECT int2 '-0b1000000000000000';
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SELECT int2 '-0b1000000000000001';
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SELECT int2 '-0o100000';
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SELECT int2 '-0o100001';
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SELECT int2 '-0x8000';
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SELECT int2 '-0x8001';
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-- underscores
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SELECT int2 '1_000';
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SELECT int2 '1_2_3';
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SELECT int2 '0xE_FF';
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SELECT int2 '0o2_73';
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SELECT int2 '0b_10_0101';
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-- error cases
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SELECT int2 '_100';
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SELECT int2 '100_';
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SELECT int2 '10__000';
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