mariadb

Tree: 013ba71dfd

Marko Mäkelä 013ba71dfd Bug#13002783 PARTIALLY UNINITIALIZED CASCADE UPDATE VECTOR In the ON UPDATE CASCADE clause of FOREIGN KEY constraints, the calculated update vector was not fully initialized. This bug was introduced in the InnoDB Plugin when implementing support for ROW_FORMAT=DYNAMIC. Additionally, the data type information was not initialized, but apparently it has never been needed in this case. Nevertheless, it is not good programming practice to pass uninitialized values around. calc_row_difference(): Declare the update field uninitialized in Valgrind. Copy the data type information as well, except when the field is SQL NULL. In the built-in InnoDB, initialize ufield->extern_storage = FALSE (an initialization bug that had gone unnoticed this far). The InnoDB Plugin and later have this flag to dfield_t and have always initialized it properly. row_ins_cascade_calc_update_vec(): Reduce the scope of some pointers. Initialize orig_len. (This caused the bug in InnoDB Plugin and later.) row_ins_foreign_check_on_constraint(): Simplify a condition. Declare the update vector uninitialized. rb:771 approved by Jimmy Yang		14 years ago
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archive	Updated/added copyright headers	14 years ago
blackhole	Updated/added copyright headers	14 years ago
csv	Updated/added copyright headers	14 years ago
example	Updated/added copyright headers	14 years ago
federated	Bug #11750417 40942: UNABLE TO INSTALL FEDERATED PLUGIN	14 years ago
heap	BUG#11759349 - 51655: CREATE TABLE IN MEMORY ENGINE DOESN'T STORE	14 years ago
innobase	Bug#13002783 PARTIALLY UNINITIALIZED CASCADE UPDATE VECTOR	14 years ago
innodb_plugin	Bug#13002783 PARTIALLY UNINITIALIZED CASCADE UPDATE VECTOR	14 years ago
myisam	BUG#11757032 - 49030: OPTIMIZE TABLE BREAKS MYISAM TABLE WHEN	14 years ago
myisammrg	Updated/added copyright headers	14 years ago
ndb	Merge from mysql-5.1.58-release	14 years ago
Makefile.am	Updated/added copyright headers	14 years ago
mysql_storage_engine.cmake	Updated/added copyright headers	14 years ago