# # Preparatory cleanup. # drop database if exists mysqltest; create database mysqltest; use mysqltest; DROP TABLE IF EXISTS t1; # # We need a fixed timestamp to avoid varying results. # SET timestamp=1000000000; # # We need big packets. # # Capture initial value to reset at the end of the test # Now adjust max_allowed_packet SET @@global.max_allowed_packet= 10*1024*1024*1024; Warnings: Warning 1292 Truncated incorrect max_allowed_packet value: '10737418240' max_allowed_packet is a global variable. In order for the preceding change in max_allowed_packets' value to be seen and used, we must start a new connection. The change does not take effect with the current one. For simplicity, we just disconnect / reconnect connection default here. disconnect default; connect default, localhost,root,,; # # Delete all existing binary logs. # RESET MASTER; # # Create a test table. # use mysqltest; CREATE TABLE t1 ( c1 LONGTEXT ) DEFAULT CHARSET latin1; # # Show how many rows are affected by each statement. # # # Insert some big rows. # insert 1024MB data twice INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 67108864)); affected rows: 1 INSERT INTO t1 VALUES (REPEAT('MegaByteBlckMany', 67108864)); affected rows: 1 # # Flush all log buffers to the log file. # FLUSH LOGS; affected rows: 0 # # Call mysqlbinlog to display the log file contents. # NOTE: The output of mysqlbinlog is redirected to # $MYSQLTEST_VARDIR/tmp/mysqlbinlog_big_1.out # If you want to examine it, disable remove_file # at the bottom of the test script. # # # Cleanup. # # reset variable value to pass testcase checks affected rows: 0 DROP TABLE t1; affected rows: 0 drop database if exists mysqltest; affected rows: 0 remove_file $MYSQLTEST_VARDIR/tmp/mysqlbinlog_big_1.out