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| author | Georgi Kodinov <joro@sun.com> | 2009-03-11 14:10:44 +0200 |
|---|---|---|
| committer | Georgi Kodinov <joro@sun.com> | 2009-03-11 14:10:44 +0200 |
| commit | d3d6f4fdad8176abe0d8981d79a925731df9a5d0 (patch) | |
| tree | e83e191a13e71272f8cbe61c90ea6c90757d6fd7 /mysql-test/r/explain.result | |
| parent | 0614532a92d482eb31b6a2e1043f2b3b612b2e1f (diff) | |
| download | mariadb-git-d3d6f4fdad8176abe0d8981d79a925731df9a5d0.tar.gz | |
Bug #43354: Use key hint can crash server in explain extended query
The copy of the original arguments of a aggregate function was not
initialized until after fix_fields().
Sometimes (e.g. when there's an error processing the statement)
the print() can be called with no corresponding fix_fields() call.
Fixed by adding a check if the Item is fixed before using the arguments
copy.
mysql-test/r/explain.result:
Bug #43354: test case
mysql-test/t/explain.test:
Bug #43354: test case
sql/item_sum.cc:
Bug #43354: use the argument list copy only if it's initialized
Diffstat (limited to 'mysql-test/r/explain.result')
| -rw-r--r-- | mysql-test/r/explain.result | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/mysql-test/r/explain.result b/mysql-test/r/explain.result index 3aa189f4a9d..b0adc428e4c 100644 --- a/mysql-test/r/explain.result +++ b/mysql-test/r/explain.result @@ -155,3 +155,7 @@ id select_type table type possible_keys key key_len ref rows Extra Warnings: Note 1003 select 1 AS `1` from (select count(distinct `test`.`t1`.`a`) AS `COUNT(DISTINCT t1.a)` from `test`.`t1` join `test`.`t2` group by `test`.`t1`.`a`) `s1` DROP TABLE t1,t2; +CREATE TABLE t1 (a INT PRIMARY KEY); +EXPLAIN EXTENDED SELECT COUNT(a) FROM t1 USE KEY(a); +ERROR HY000: Key 'a' doesn't exist in table 't1' +DROP TABLE t1; |