database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-29 05:21:33 +03:00
Code Activity

MDEV-11196: Error:Run-Time Check Failure #2 - Stack around the variable 'key_buff'

Browse Source 
was corrupted, server crashes in opt_sum_query

Extended keys feature disabled if the length of extended key is longer than MAX_KEY_LEN
This commit is contained in:
Varun Gupta
2017-05-28 00:40:36 +05:30
parent f42e08f951
commit e4d10e09cf
3 changed files with 170 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

81
mysql-test/r/innodb_ext_key.result
View File

@ -1133,5 +1133,86 @@ where index_date_updated= 10 and index_id < 800;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 range index_date_updated index_date_updated 13 NULL # Using index condition
drop table t0,t1,t2;
#
# MDEV-11196: Error:Run-Time Check Failure #2 - Stack around the variable 'key_buff'
# was corrupted, server crashes in opt_sum_query
set @save_innodb_file_format= @@innodb_file_format;
set @save_innodb_large_prefix= @@innodb_large_prefix;
set global innodb_file_format = BARRACUDA;
set global innodb_large_prefix = ON;
CREATE TABLE t1 (
pk INT,
f1 VARCHAR(3),
f2 VARCHAR(1024),
PRIMARY KEY (pk),
KEY(f2)
) ENGINE=InnoDB CHARSET utf8 ROW_FORMAT= DYNAMIC;
INSERT INTO t1 VALUES (1,'foo','abc'),(2,'bar','def');
SELECT MAX(t2.pk) FROM t1 t2 INNER JOIN t1 t3 ON t2.f1 = t3.f1 WHERE t2.pk <= 4;
MAX(t2.pk)
2
drop table t1;
CREATE TABLE t1 (
pk1 INT,
pk2 INT,
f1 VARCHAR(3),
f2 VARCHAR(1021),
PRIMARY KEY (pk1,pk2),
KEY(f2)
) ENGINE=InnoDB CHARSET utf8 ROW_FORMAT= DYNAMIC;
INSERT INTO t1 VALUES (1,2,'2','abc'),(2,3,'3','def');
explain format= json
select * from t1 force index(f2) where pk1 <= 5 and pk2 <=5 and f2 = 'abc' and f1 <= '3';
EXPLAIN
{
"query_block": {
"select_id": 1,
"table": {
"table_name": "t1",
"access_type": "range",
"possible_keys": ["f2"],
"key": "f2",
"key_length": "3070",
"used_key_parts": ["f2", "pk1"],
"rows": 1,
"filtered": 100,
"index_condition": "((t1.pk1 <= 5) and (t1.pk2 <= 5) and (t1.f2 = 'abc'))",
"attached_condition": "(t1.f1 <= '3')"
}
}
}
drop table t1;
CREATE TABLE t1 (
f2 INT,
pk2 INT,
f1 VARCHAR(3),
pk1 VARCHAR(1000),
PRIMARY KEY (pk1,pk2),
KEY k1(pk1,f2)
) ENGINE=InnoDB CHARSET utf8 ROW_FORMAT= DYNAMIC;
INSERT INTO t1 VALUES (1,2,'2','abc'),(2,3,'3','def');
explain format= json
select * from t1 force index(k1) where f2 <= 5 and pk2 <=5 and pk1 = 'abc' and f1 <= '3';
EXPLAIN
{
"query_block": {
"select_id": 1,
"table": {
"table_name": "t1",
"access_type": "range",
"possible_keys": ["k1"],
"key": "k1",
"key_length": "3011",
"used_key_parts": ["pk1", "f2", "pk2"],
"rows": 1,
"filtered": 100,
"index_condition": "((t1.f2 <= 5) and (t1.pk2 <= 5) and (t1.pk1 = 'abc'))",
"attached_condition": "(t1.f1 <= '3')"
}
}
}
drop table t1;
set optimizer_switch=@save_ext_key_optimizer_switch;
set global innodb_file_format = @save_innodb_file_format;
set global innodb_large_prefix = @save_innodb_large_prefix;
SET SESSION STORAGE_ENGINE=DEFAULT;