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| author | Jorgen Loland <jorgen.loland@sun.com> | 2009-11-13 12:22:39 +0100 |
|---|---|---|
| committer | Jorgen Loland <jorgen.loland@sun.com> | 2009-11-13 12:22:39 +0100 |
| commit | a120e969a83128f075b54a06155ccee0bb46b312 (patch) | |
| tree | 647243c578e4358668d708f8fb7854fc8b3d9d76 /mysql-test/r/select.result | |
| parent | cf872354a8b20daced728a9c76c4d25648f88da8 (diff) | |
| download | mariadb-git-a120e969a83128f075b54a06155ccee0bb46b312.tar.gz | |
Bug#48052: Valgrind warning - uninitialized value in
init_read_record() - (records.cc:274)
Item_cond::used_tables_cache was accessed in
records.cc#init_read_record() without being initialized. It had
not been initialized because it was wrongly assumed that the
Item's variables would not be accessed, and hence
quick_fix_field() was used instead of fix_fields() to save a few
CPU cycles at creation time.
The fix is to properly initilize the Item by replacing
quick_fix_field() with fix_fields().
mysql-test/r/select.result:
Add test for BUG#48052
mysql-test/t/select.test:
Add test for BUG#48052
sql/sql_select.cc:
Properly initialize Item_cond_and by calling fix_fields (instead of quick_fix_field) when the Item that "ANDs" WHERE clause conditions with HAVING clause conditions is created.
Diffstat (limited to 'mysql-test/r/select.result')
| -rw-r--r-- | mysql-test/r/select.result | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/mysql-test/r/select.result b/mysql-test/r/select.result index e528b63ddb7..d0b2a575a32 100644 --- a/mysql-test/r/select.result +++ b/mysql-test/r/select.result @@ -4591,4 +4591,22 @@ field2 15:13:38 drop table A,AA,B,BB; #end of test for bug#45266 +# +# BUG#48052: Valgrind warning - uninitialized value in init_read_record() +# +CREATE TABLE t1 ( +pk int(11) NOT NULL, +i int(11) DEFAULT NULL, +v varchar(1) DEFAULT NULL, +PRIMARY KEY (pk) +); +INSERT INTO t1 VALUES (2,7,'m'); +INSERT INTO t1 VALUES (3,9,'m'); +SELECT v +FROM t1 +WHERE NOT pk > 0 +HAVING v <= 't' +ORDER BY pk; +v +DROP TABLE t1; End of 5.1 tests |