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| author | Sergey Glukhov <Sergey.Glukhov@sun.com> | 2009-06-02 11:38:13 +0500 |
|---|---|---|
| committer | Sergey Glukhov <Sergey.Glukhov@sun.com> | 2009-06-02 11:38:13 +0500 |
| commit | 33734e956fb06435168ad4630515c02358871a0e (patch) | |
| tree | feaf78789a7104118740c975304683318faad5ae /mysql-test/t/func_math.test | |
| parent | 47b334a64200d9413d3289fb3f011a6f4bc22ec2 (diff) | |
| download | mariadb-git-33734e956fb06435168ad4630515c02358871a0e.tar.gz | |
Bug#45152 crash with round() function on longtext column in a derived table
The crash happens due to wrong max_length value which is set on
Item_func_round::fix_length_and_dec() stage. The value is set to
args[0]->max_length which is too big in case of LONGTEXT(LONGBLOB) fields.
The fix is to set max_length using float_length() function.
mysql-test/r/func_math.result:
test result
mysql-test/t/func_math.test:
test case
sql/item_func.cc:
The crash happens due to wrong max_length value which is set on
Item_func_round::fix_length_and_dec() stage. The value is set to
args[0]->max_length which is too big in case of LONGTEXT(LONGBLOB) fields.
The fix is to set max_length using float_length() function.
Diffstat (limited to 'mysql-test/t/func_math.test')
| -rw-r--r-- | mysql-test/t/func_math.test | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/mysql-test/t/func_math.test b/mysql-test/t/func_math.test index 593cfe90c1b..2c1094213e4 100644 --- a/mysql-test/t/func_math.test +++ b/mysql-test/t/func_math.test @@ -250,4 +250,13 @@ SELECT a, ROUND(a) FROM t1; DROP TABLE t1; +# +# Bug#45152 crash with round() function on longtext column in a derived table +# +CREATE TABLE t1(f1 LONGTEXT) engine=myisam; +INSERT INTO t1 VALUES ('a'); +SELECT 1 FROM (SELECT ROUND(f1) AS a FROM t1) AS s WHERE a LIKE 'a'; +SELECT 1 FROM (SELECT ROUND(f1, f1) AS a FROM t1) AS s WHERE a LIKE 'a'; +DROP TABLE t1; + --echo End of 5.0 tests |