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b31e0c9a48
Let
- T be a transactional table and N non-transactional table.
- B be begin, C commit and R rollback.
- N be a statement that accesses and changes only N-tables.
- T be a statement that accesses and changes only T-tables.
In RBR, changes to N-tables that happen early in a transaction are not immediately flushed
upon committing a statement. This behavior may, however, break consistency in the presence
of concurrency since changes done to N-tables become immediately visible to other
connections. To fix this problem, we do the following:
. B N N T C would log - B N C B N C B T C.
. B N N T R would log - B N C B N C B T R.
Note that we are not preserving history from the master as we are introducing a commit that
never happened. However, this seems to be more acceptable than the possibility of breaking
consistency in the presence of concurrency.
407 lines
17 KiB
Plaintext
407 lines
17 KiB
Plaintext
###################################################################################
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# CONFIGURATION
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###################################################################################
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CREATE TABLE nt_1 (a text, b int PRIMARY KEY) ENGINE = MyISAM;
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CREATE TABLE nt_2 (a text, b int PRIMARY KEY) ENGINE = MyISAM;
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CREATE TABLE tt_1 (a text, b int PRIMARY KEY) ENGINE = Innodb;
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CREATE TABLE tt_2 (a text, b int PRIMARY KEY) ENGINE = Innodb;
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CREATE TRIGGER tr_i_tt_1_to_nt_1 BEFORE INSERT ON tt_1 FOR EACH ROW
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BEGIN
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INSERT INTO nt_1 VALUES (NEW.a, NEW.b);
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END|
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CREATE TRIGGER tr_i_nt_2_to_tt_2 BEFORE INSERT ON nt_2 FOR EACH ROW
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BEGIN
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INSERT INTO tt_2 VALUES (NEW.a, NEW.b);
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END|
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###################################################################################
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# CHECK HISTORY IN BINLOG
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###################################################################################
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*** "B M* T C" with error in M* generates in the binlog the "B M* R B T C" entries
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INSERT INTO nt_1 VALUES ("new text 1", 1);
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BEGIN;
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INSERT INTO tt_1 VALUES (USER(), 2), (USER(), 1);
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ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
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INSERT INTO tt_2 VALUES ("new text 3", 3);
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COMMIT;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # use `test`; INSERT INTO nt_1 VALUES ("new text 1", 1)
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.tt_1)
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: #
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # ROLLBACK
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; INSERT INTO tt_2 VALUES ("new text 3", 3)
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master-bin.000001 # Xid # # COMMIT /* XID */
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INSERT INTO tt_2 VALUES ("new text 4", 4);
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BEGIN;
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INSERT INTO nt_2 VALUES (USER(), 5), (USER(), 4);
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ERROR 23000: Duplicate entry '4' for key 'PRIMARY'
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INSERT INTO tt_2 VALUES ("new text 6", 6);
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COMMIT;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; INSERT INTO tt_2 VALUES ("new text 4", 4)
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.nt_2)
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master-bin.000001 # Table_map # # table_id: # (test.tt_2)
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master-bin.000001 # Write_rows # # table_id: #
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # ROLLBACK
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; INSERT INTO tt_2 VALUES ("new text 6", 6)
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master-bin.000001 # Xid # # COMMIT /* XID */
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*** "B M M* T C" with error in M* generates in the binlog the "B M M* T C" entries
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INSERT INTO nt_1 VALUES ("new text 10", 10);
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BEGIN;
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INSERT INTO tt_1 VALUES ("new text 7", 7), ("new text 8", 8);
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INSERT INTO tt_1 VALUES (USER(), 9), (USER(), 10);
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ERROR 23000: Duplicate entry '10' for key 'PRIMARY'
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INSERT INTO tt_2 VALUES ("new text 11", 11);
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COMMIT;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # use `test`; INSERT INTO nt_1 VALUES ("new text 10", 10)
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; INSERT INTO tt_1 VALUES ("new text 7", 7), ("new text 8", 8)
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master-bin.000001 # Table_map # # table_id: # (test.tt_1)
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: #
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # use `test`; INSERT INTO tt_2 VALUES ("new text 11", 11)
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master-bin.000001 # Xid # # COMMIT /* XID */
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INSERT INTO tt_2 VALUES ("new text 15", 15);
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BEGIN;
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INSERT INTO nt_2 VALUES ("new text 12", 12), ("new text 13", 13);
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INSERT INTO nt_2 VALUES (USER(), 14), (USER(), 15);
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ERROR 23000: Duplicate entry '15' for key 'PRIMARY'
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INSERT INTO tt_2 VALUES ("new text 16", 16);
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COMMIT;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; INSERT INTO tt_2 VALUES ("new text 15", 15)
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; INSERT INTO nt_2 VALUES ("new text 12", 12), ("new text 13", 13)
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master-bin.000001 # Table_map # # table_id: # (test.nt_2)
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master-bin.000001 # Table_map # # table_id: # (test.tt_2)
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master-bin.000001 # Write_rows # # table_id: #
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # use `test`; INSERT INTO tt_2 VALUES ("new text 16", 16)
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master-bin.000001 # Xid # # COMMIT /* XID */
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*** "B M* M* T C" with error in M* generates in the binlog the "B M* R B M* R B T C" entries
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INSERT INTO nt_1 VALUES ("new text 18", 18);
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INSERT INTO nt_1 VALUES ("new text 20", 20);
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BEGIN;
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INSERT INTO tt_1 VALUES (USER(), 17), (USER(), 18);
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ERROR 23000: Duplicate entry '18' for key 'PRIMARY'
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INSERT INTO tt_1 VALUES (USER(), 19), (USER(), 20);
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ERROR 23000: Duplicate entry '20' for key 'PRIMARY'
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INSERT INTO tt_2 VALUES ("new text 21", 21);
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COMMIT;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # use `test`; INSERT INTO nt_1 VALUES ("new text 18", 18)
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master-bin.000001 # Query # # use `test`; INSERT INTO nt_1 VALUES ("new text 20", 20)
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.tt_1)
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: #
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # ROLLBACK
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.tt_1)
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: #
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # ROLLBACK
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; INSERT INTO tt_2 VALUES ("new text 21", 21)
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master-bin.000001 # Xid # # COMMIT /* XID */
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INSERT INTO tt_2 VALUES ("new text 23", 23);
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INSERT INTO tt_2 VALUES ("new text 25", 25);
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BEGIN;
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INSERT INTO nt_2 VALUES (USER(), 22), (USER(), 23);
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ERROR 23000: Duplicate entry '23' for key 'PRIMARY'
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INSERT INTO nt_2 VALUES (USER(), 24), (USER(), 25);
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ERROR 23000: Duplicate entry '25' for key 'PRIMARY'
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INSERT INTO tt_2 VALUES ("new text 26", 26);
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COMMIT;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; INSERT INTO tt_2 VALUES ("new text 23", 23)
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; INSERT INTO tt_2 VALUES ("new text 25", 25)
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.nt_2)
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master-bin.000001 # Table_map # # table_id: # (test.tt_2)
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master-bin.000001 # Write_rows # # table_id: #
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # ROLLBACK
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.nt_2)
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master-bin.000001 # Table_map # # table_id: # (test.tt_2)
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master-bin.000001 # Write_rows # # table_id: #
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # ROLLBACK
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; INSERT INTO tt_2 VALUES ("new text 26", 26)
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master-bin.000001 # Xid # # COMMIT /* XID */
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*** "B T INSERT M...SELECT* C" with an error in INSERT M...SELECT* generates
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*** in the binlog the following entries: "Nothing".
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*** There is a bug in that will be fixed after WL#2687. Please, check BUG#47175 for further details.
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TRUNCATE TABLE nt_2;
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TRUNCATE TABLE tt_2;
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INSERT INTO tt_2 VALUES ("new text 7", 7);
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BEGIN;
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INSERT INTO tt_2 VALUES ("new text 27", 27);
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INSERT INTO nt_2(a, b) SELECT USER(), b FROM nt_1;
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ERROR 23000: Duplicate entry '7' for key 'PRIMARY'
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INSERT INTO tt_2 VALUES ("new text 28", 28);
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ROLLBACK;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # use `test`; TRUNCATE TABLE nt_2
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; TRUNCATE TABLE tt_2
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; INSERT INTO tt_2 VALUES ("new text 7", 7)
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master-bin.000001 # Xid # # COMMIT /* XID */
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*** "B INSERT M..SELECT* C" with an error in INSERT M...SELECT* generates
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*** in the binlog the following entries: "B INSERT M..SELECT* R".
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TRUNCATE TABLE nt_2;
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TRUNCATE TABLE tt_2;
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INSERT INTO tt_2 VALUES ("new text 7", 7);
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BEGIN;
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INSERT INTO nt_2(a, b) SELECT USER(), b FROM nt_1;
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ERROR 23000: Duplicate entry '7' for key 'PRIMARY'
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COMMIT;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # use `test`; TRUNCATE TABLE nt_2
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; TRUNCATE TABLE tt_2
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; INSERT INTO tt_2 VALUES ("new text 7", 7)
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.nt_2)
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master-bin.000001 # Table_map # # table_id: # (test.tt_2)
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master-bin.000001 # Write_rows # # table_id: #
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master-bin.000001 # Write_rows # # table_id: #
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master-bin.000001 # Write_rows # # table_id: #
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # ROLLBACK
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*** "B N N T C" generates in the binlog the "B N C B N C B T C" entries
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TRUNCATE TABLE nt_1;
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TRUNCATE TABLE tt_2;
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BEGIN;
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INSERT INTO nt_1 VALUES (USER(), 1);
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INSERT INTO nt_1 VALUES (USER(), 2);
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INSERT INTO tt_2 VALUES (USER(), 3);
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COMMIT;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # use `test`; TRUNCATE TABLE nt_1
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Query # # use `test`; TRUNCATE TABLE tt_2
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # COMMIT
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # COMMIT
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.tt_2)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Xid # # COMMIT /* XID */
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*** "B N N T R" generates in the binlog the "B N C B N C B T R" entries
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BEGIN;
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INSERT INTO nt_1 VALUES (USER(), 4);
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INSERT INTO nt_1 VALUES (USER(), 5);
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INSERT INTO tt_2 VALUES (USER(), 6);
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ROLLBACK;
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Warnings:
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Warning 1196 Some non-transactional changed tables couldn't be rolled back
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # COMMIT
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # COMMIT
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.tt_2)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # ROLLBACK
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*** "B N* N* T C" with error in N* generates in the binlog the "B N R B N R B T C" entries
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BEGIN;
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INSERT INTO nt_1 VALUES (USER(), 7), (USER(), 1);
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ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
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INSERT INTO nt_1 VALUES (USER(), 8), (USER(), 1);
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ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
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INSERT INTO tt_2 VALUES (USER(), 9);
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COMMIT;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # ROLLBACK
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # ROLLBACK
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.tt_2)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Xid # # COMMIT /* XID */
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*** "B N* N* T R" with error in N* generates in the binlog the "B N R B N R B T R" entries
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BEGIN;
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INSERT INTO nt_1 VALUES (USER(), 10), (USER(), 1);
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ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
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INSERT INTO nt_1 VALUES (USER(), 11), (USER(), 1);
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ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
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INSERT INTO tt_2 VALUES (USER(), 12);
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ROLLBACK;
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Warnings:
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Warning 1196 Some non-transactional changed tables couldn't be rolled back
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # ROLLBACK
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # ROLLBACK
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.tt_2)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # ROLLBACK
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*** "B N N T N T C" generates in the binlog the "B N C B N C B T N T C" entries
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BEGIN;
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INSERT INTO nt_1 VALUES (USER(), 13);
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INSERT INTO nt_1 VALUES (USER(), 14);
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INSERT INTO tt_2 VALUES (USER(), 15);
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INSERT INTO nt_1 VALUES (USER(), 16);
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INSERT INTO tt_2 VALUES (USER(), 17);
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COMMIT;
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # COMMIT
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # COMMIT
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.tt_2)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Table_map # # table_id: # (test.tt_2)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Xid # # COMMIT /* XID */
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*** "B N N T N T R" generates in the binlog the "B N C B N C B T N T R" entries
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BEGIN;
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INSERT INTO nt_1 VALUES (USER(), 18);
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INSERT INTO nt_1 VALUES (USER(), 19);
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INSERT INTO tt_2 VALUES (USER(), 20);
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INSERT INTO nt_1 VALUES (USER(), 21);
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INSERT INTO tt_2 VALUES (USER(), 22);
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ROLLBACK;
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Warnings:
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Warning 1196 Some non-transactional changed tables couldn't be rolled back
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show binlog events from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # COMMIT
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # COMMIT
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.tt_2)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Table_map # # table_id: # (test.nt_1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Table_map # # table_id: # (test.tt_2)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Query # # ROLLBACK
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###################################################################################
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# CLEAN
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###################################################################################
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DROP TABLE tt_1;
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DROP TABLE tt_2;
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DROP TABLE nt_1;
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DROP TABLE nt_2;
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