Mirrors
/
mariadb
mirror of https://github.com/MariaDB/server
3
0
Fork 0
Code Releases Activity
Browse Source

Bug#35108 SELECT FROM REFERENTIAL_CONSTRAINTS crashes 

referenced_key_name field can be uninitialized in the case when
referenced table is dropped.
Added codition which allows to handle this situation.


mysql-test/r/information_schema_inno.result:
  test result
mysql-test/t/information_schema_inno.test:
  test result
sql/sql_show.cc:
  referenced_key_name field can be uninitialized in the case when
  referenced table is dropped.
  Added codition which allows to handle this situation.
pull/374/head
unknown 18 years ago
parent
269ebe5421
commit
45b4d937c6
3 changed files with 34 additions and 4 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 11
      mysql-test/r/information_schema_inno.result
  2. 13
      mysql-test/t/information_schema_inno.test
  3. 14
      sql/sql_show.cc

11
mysql-test/r/information_schema_inno.result
View File

@ -78,3 +78,14 @@ NULL NULL
db-1 t-2
NULL NULL
drop database `db-1`;
create table t1(id int primary key) engine = Innodb;
create table t2(pid int, foreign key (pid) references t1(id)) engine = Innodb;
set foreign_key_checks = 0;
drop table t1;
select UNIQUE_CONSTRAINT_NAME
from information_schema.referential_constraints
where constraint_schema = schema();
UNIQUE_CONSTRAINT_NAME
NULL
drop table t2;
set foreign_key_checks = 1;

13
mysql-test/t/information_schema_inno.test
View File

@ -76,3 +76,16 @@ select referenced_table_schema, referenced_table_name
from information_schema.key_column_usage
where constraint_schema = 'db-1';
drop database `db-1`;
#
# Bug#35108 SELECT FROM REFERENTIAL_CONSTRAINTS crashes
#
create table t1(id int primary key) engine = Innodb;
create table t2(pid int, foreign key (pid) references t1(id)) engine = Innodb;
set foreign_key_checks = 0;
drop table t1;
select UNIQUE_CONSTRAINT_NAME
from information_schema.referential_constraints
where constraint_schema = schema();
drop table t2;
set foreign_key_checks = 1;

14
sql/sql_show.cc
View File

@ -5276,8 +5276,14 @@ get_referential_constraints_record(THD *thd, TABLE_LIST *tables,
f_key_info->referenced_db->length, cs);
table->field[10]->store(f_key_info->referenced_table->str,
f_key_info->referenced_table->length, cs);
table->field[5]->store(f_key_info->referenced_key_name->str,
f_key_info->referenced_key_name->length, cs);
if (f_key_info->referenced_key_name)
{
table->field[5]->store(f_key_info->referenced_key_name->str,
f_key_info->referenced_key_name->length, cs);
table->field[5]->set_notnull();
}
else
table->field[5]->set_null();
table->field[6]->store(STRING_WITH_LEN("NONE"), cs);
table->field[7]->store(f_key_info->update_method->str,
f_key_info->update_method->length, cs);
@ -6480,8 +6486,8 @@ ST_FIELD_INFO referential_constraints_fields_info[]=
OPEN_FULL_TABLE},
{"UNIQUE_CONSTRAINT_SCHEMA", NAME_CHAR_LEN, MYSQL_TYPE_STRING, 0, 0, 0,
OPEN_FULL_TABLE},
{"UNIQUE_CONSTRAINT_NAME", NAME_CHAR_LEN, MYSQL_TYPE_STRING, 0, 0, 0,
OPEN_FULL_TABLE},
{"UNIQUE_CONSTRAINT_NAME", NAME_CHAR_LEN, MYSQL_TYPE_STRING, 0,
MY_I_S_MAYBE_NULL, 0, OPEN_FULL_TABLE},
{"MATCH_OPTION", NAME_CHAR_LEN, MYSQL_TYPE_STRING, 0, 0, 0, OPEN_FULL_TABLE},
{"UPDATE_RULE", NAME_CHAR_LEN, MYSQL_TYPE_STRING, 0, 0, 0, OPEN_FULL_TABLE},
{"DELETE_RULE", NAME_CHAR_LEN, MYSQL_TYPE_STRING, 0, 0, 0, OPEN_FULL_TABLE},

Write Preview
Loading…
Cancel
Save