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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
43 lines
1.2 KiB
Plaintext
43 lines
1.2 KiB
Plaintext
#
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# Test verifies replay of binary logs which contain
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# SA/RA/CA works fine.
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# Generate a binary log with alter events and use mysqlbinlog tool to
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# generate a sql file for replay. Source it on an clean master and
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# verify the correctness. Use the latest binlog and repeat the same
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# process mentioned above and observe replay works fine.
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#
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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, 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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drop table t2, t1;
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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0-1-5
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FLUSH LOGS;
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# reset the binlog
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RESET MASTER;
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# execute the binlog
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SELECT @@gtid_binlog_state;
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@@gtid_binlog_state
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0-1-5
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FLUSH LOGS;
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# Replay 1: One more time to simulate S->S case
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RESET MASTER;
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# execute the binlog
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SELECT @@gtid_binlog_state;
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@@gtid_binlog_state
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0-1-5
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FLUSH LOGS;
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# Replay 2: One more time to simulate S->S case
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RESET MASTER;
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# execute the binlog
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SELECT @@gtid_binlog_state;
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@@gtid_binlog_state
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0-1-5
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# clean up
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RESET MASTER;
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set global binlog_alter_two_phase=0;
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