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Fix for bug #22026: Warning when using IF statement and large unsigned bigint

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We use INT_RESULT type if all arguments are of type INT for 'if', 'case', 
'coalesce' functions regardless of arguments' unsigned flag, so sometimes we can
exceed the INT bounds.
This commit is contained in:
ramil/ram@mysql.com/ramil.myoffice.izhnet.ru
2007-01-22 14:52:23 +04:00
parent 8e6f3ab33b
commit a079f20aa8
3 changed files with 63 additions and 3 deletions
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24
mysql-test/t/select.test
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@@ -3123,3 +3123,27 @@ SELECT * FROM t1 LIMIT 2, -1;
DROP TABLE t1;
#
# Bug #22026: Warning when using IF statement and large unsigned bigint
#
create table t1 (a bigint unsigned);
insert into t1 values
(if(1, 9223372036854775808, 1)),
(case when 1 then 9223372036854775808 else 1 end),
(coalesce(9223372036854775808, 1));
select * from t1;
drop table t1;
create table t1 select
if(1, 9223372036854775808, 1) i,
case when 1 then 9223372036854775808 else 1 end c,
coalesce(9223372036854775808, 1) co;
show create table t1;
drop table t1;
# Ensure we handle big values properly
select
if(1, cast(1111111111111111111 as unsigned), 1) i,
case when 1 then cast(1111111111111111111 as unsigned) else 1 end c,
coalesce(cast(1111111111111111111 as unsigned), 1) co;
--echo End of 5.0 tests