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MDEV-35651 NO_UNSIGNED_SUBTRACTION does not work for multiple unsigned integers

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restore correct unsigned-unsigned logic

followup for 031f11717d
This commit is contained in:
Sergei Golubchik 2024-12-15 20:14:16 +01:00
parent 680d461b5d
commit 828b928fce
3 changed files with 24 additions and 10 deletions
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15
mysql-test/main/func_math.result
View file

@ -1,4 +1,3 @@
drop table if exists t1;
select floor(5.5),floor(-5.5);
floor(5.5) floor(-5.5)
5 -6
@ -3632,5 +3631,17 @@ SELECT(ASIN(-1)+ LN(-1)) % (ATAN(-1) MOD FLOOR(1)) * (TRUNCATE(EXP(-1.e-2),-1.e+
c1
NULL
#
# End of 10.5 tests
# MDEV-35651 NO_UNSIGNED_SUBTRACTION does not work for multiple unsigned integers
#
set sql_mode=no_unsigned_subtraction;
select cast(0 as unsigned) - 1;
cast(0 as unsigned) - 1
-1
select 2-cast(3 as unsigned);
2-cast(3 as unsigned)
-1
select cast(1 as unsigned) - cast(2 as unsigned);
cast(1 as unsigned) - cast(2 as unsigned)
-1
set sql_mode=default;
# End of 10.5 tests

14
mysql-test/main/func_math.test
View file

@ -4,10 +4,6 @@
--source include/default_charset.inc
--disable_warnings
drop table if exists t1;
--enable_warnings
select floor(5.5),floor(-5.5);
explain extended select floor(5.5),floor(-5.5);
select ceiling(5.5),ceiling(-5.5);
@ -1941,7 +1937,13 @@ SELECT (TRUNCATE(EXP(-1.e-2),-1.e+30) % RADIANS(-1)) AS c1;
SELECT (TRUNCATE(EXP(-1.e-2),-1.e+30) % RADIANS(-1)) * (LAST_DAY('1-03-30 1:29:12') MOD 1 + COS(-1)) AS c1;
SELECT(ASIN(-1)+ LN(-1)) % (ATAN(-1) MOD FLOOR(1)) * (TRUNCATE(EXP(-1.e-2),-1.e+30) % RADIANS(-1)) * (LAST_DAY('1-03-30 1:29:12') MOD 1 + COS(-1)) AS c1;
--echo #
--echo # MDEV-35651 NO_UNSIGNED_SUBTRACTION does not work for multiple unsigned integers
--echo #
set sql_mode=no_unsigned_subtraction;
select cast(0 as unsigned) - 1;
select 2-cast(3 as unsigned);
select cast(1 as unsigned) - cast(2 as unsigned);
set sql_mode=default;
--echo #
--echo # End of 10.5 tests
--echo #

5
sql/item_func.cc
View file

@ -1316,9 +1316,10 @@ longlong Item_func_minus::int_op()
{
if (args[1]->unsigned_flag)
{
if ((ulonglong) val0 < (ulonglong) val1)
if ((ulonglong) val0 >= (ulonglong) val1)
res_unsigned= TRUE;
else if ((ulonglong)val1 - (ulonglong)val0 > (ulonglong)LONGLONG_MAX)
goto err;
res_unsigned= TRUE;
}
else
{