Commit 56d00512 authored by unknown's avatar unknown

Merge epotemkin@bk-internal.mysql.com:/home/bk/mysql-5.0

into moonbone.local:/work/16272-bug-5.0-mysql

parents c033d138 315a4613
......@@ -121,3 +121,10 @@ a NULLIF(a,'')
NULL NULL
NULL
DROP TABLE t1;
create table t1 (f1 int, f2 int);
insert into t1 values(1,1),(0,0);
select f1, f2, if(f1, 40.0, 5.00) from t1 group by f1 order by f2;
f1 f2 if(f1, 40.0, 5.00)
0 0 5.00
1 1 40.00
drop table t1;
......@@ -89,3 +89,11 @@ SELECT a, NULLIF(a,'') FROM t1 WHERE NULLIF(a,'') IS NULL;
DROP TABLE t1;
# End of 4.1 tests
#
# Bug #16272 IF function with decimal args can produce wrong result
#
create table t1 (f1 int, f2 int);
insert into t1 values(1,1),(0,0);
select f1, f2, if(f1, 40.0, 5.00) from t1 group by f1 order by f2;
drop table t1;
......@@ -1383,7 +1383,8 @@ Item_func_if::fix_length_and_dec()
max_length=
(cached_result_type == DECIMAL_RESULT || cached_result_type == INT_RESULT) ?
(max(args[1]->max_length - args[1]->decimals,
args[2]->max_length - args[2]->decimals) + decimals) :
args[2]->max_length - args[2]->decimals) + decimals +
(unsigned_flag ? 0 : 1) ) :
max(args[1]->max_length, args[2]->max_length);
}
......
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