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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
42 lines
1.2 KiB
Text
42 lines
1.2 KiB
Text
#
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# MENT-662: Lag Free Alter On Slave
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#
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--echo #
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--echo # Test verifies that "ROLLBACK ALTER" is written to binary log upon
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--echo #ALTER command execution failure.
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--echo #
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--source include/have_innodb.inc
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--source include/master-slave.inc
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--connection master
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--let $binlog_alter_two_phase= `select @@binlog_alter_two_phase`
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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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--error ER_CANT_CREATE_TABLE
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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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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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--error ER_DUP_CONSTRAINT_NAME
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alter table t2 add constraint c1 foreign key (f1) references t1(f1);
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--source include/show_binlog_events.inc
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--error ER_DUP_CONSTRAINT_NAME
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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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--source include/show_binlog_events.inc
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--sync_slave_with_master
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--connection master
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drop table t2, t1;
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--sync_slave_with_master
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--connection master
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--eval set global binlog_alter_two_phase=$binlog_alter_two_phase;
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--source include/rpl_end.inc
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