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Before MySQL 4.0.18, user-specified constraint names were ignored. Starting with MySQL 4.0.18, the specified constraint name was prepended with the schema name and '/'. Now we are transforming into a format where the constraint name is prepended with the dict_table_t::name and the impossible UTF-8 sequence 0xff. Generated constraint names will be ASCII decimal numbers. On upgrade, old FOREIGN KEY constraint names will be displayed without any schema name prefix. They will be updated to the new format on DDL operations. dict_foreign_t::sql_id(): Return the SQL constraint name without any schemaname/tablename\377 or schemaname/ prefix. row_rename_table_for_mysql(), dict_table_rename_in_cache(): Simplify the logic: Just rename constraints to the new format. dict_table_get_foreign_id(): Replaces dict_table_get_highest_foreign_id(). innobase_get_foreign_key_info(): Let my_error() refer to erroneous anonymous constraints as "(null)". row_delete_constraint(): Try to drop all 3 constraint name variants. Reviewed by: Thirunarayanan Balathandayuthapani Tested by: Matthias Leich
56 lines
2.9 KiB
Text
56 lines
2.9 KiB
Text
#
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# Test verifies that "ROLLBACK ALTER" is written to binary log upon
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#ALTER command execution failure.
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#
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include/master-slave.inc
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[connection master]
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connection master;
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set global binlog_alter_two_phase = ON;
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set binlog_alter_two_phase = ON;
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create table t1 (f1 int primary key) engine=InnoDB;
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create table t2 (f1 int primary key,
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constraint c1 foreign key (f1) references t1(f1),
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constraint c1 foreign key (f1) references t1(f1)) engine=InnoDB;
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ERROR HY000: Can't create table `test`.`t2` (errno: 150 "Foreign key constraint is incorrectly formed")
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create table t2 (f1 int primary key,
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constraint c1 foreign key (f1) references t1(f1)) engine=innodb;
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alter table t2 add constraint c1 foreign key (f1) references t1(f1);
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ERROR HY000: Duplicate FOREIGN KEY constraint name ''
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include/show_binlog_events.inc
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Gtid # # GTID #-#-#
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master-bin.000001 # Query # # use `test`; create table t1 (f1 int primary key) engine=InnoDB
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master-bin.000001 # Gtid # # GTID #-#-#
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master-bin.000001 # Query # # use `test`; create table t2 (f1 int primary key,
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constraint c1 foreign key (f1) references t1(f1)) engine=innodb
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master-bin.000001 # Gtid # # GTID #-#-# START ALTER
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master-bin.000001 # Query # # use `test`; alter table t2 add constraint c1 foreign key (f1) references t1(f1)
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master-bin.000001 # Gtid # # GTID #-#-# ROLLBACK ALTER id=#
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master-bin.000001 # Query # # use `test`; alter table t2 add constraint c1 foreign key (f1) references t1(f1)
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set statement foreign_key_checks = 0 for
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alter table t2 add constraint c1 foreign key (f1) references t1(f1);
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ERROR HY000: Duplicate FOREIGN KEY constraint name 'c1'
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include/show_binlog_events.inc
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Gtid # # GTID #-#-#
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master-bin.000001 # Query # # use `test`; create table t1 (f1 int primary key) engine=InnoDB
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master-bin.000001 # Gtid # # GTID #-#-#
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master-bin.000001 # Query # # use `test`; create table t2 (f1 int primary key,
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constraint c1 foreign key (f1) references t1(f1)) engine=innodb
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master-bin.000001 # Gtid # # GTID #-#-# START ALTER
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master-bin.000001 # Query # # use `test`; alter table t2 add constraint c1 foreign key (f1) references t1(f1)
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master-bin.000001 # Gtid # # GTID #-#-# ROLLBACK ALTER id=#
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master-bin.000001 # Query # # use `test`; alter table t2 add constraint c1 foreign key (f1) references t1(f1)
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master-bin.000001 # Gtid # # GTID #-#-# START ALTER
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master-bin.000001 # Query # # use `test`; set foreign_key_checks=1; set statement foreign_key_checks = 0 for
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alter table t2 add constraint c1 foreign key (f1) references t1(f1)
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master-bin.000001 # Gtid # # GTID #-#-# ROLLBACK ALTER id=#
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master-bin.000001 # Query # # use `test`; set foreign_key_checks=1; set statement foreign_key_checks = 0 for
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alter table t2 add constraint c1 foreign key (f1) references t1(f1)
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connection slave;
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connection master;
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drop table t2, t1;
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connection slave;
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connection master;
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set global binlog_alter_two_phase=0;;
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include/rpl_end.inc
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