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|
# mysqlbinlog_big.test
#
# Show that mysqlbinlog can handle big rows.
#
#
# The *huge* output of mysqlbinlog will be redirected to
# $MYSQLTEST_VARDIR/$mysqlbinlog_output
#
--let $mysqlbinlog_output= tmp/mysqlbinlog_big_1.out
#--source include/have_myisam.inc
--let $engine_type= MyISAM
#
# This test case is insensitive to the binlog format
# because we don't display the output of mysqlbinlog.
#
#--source include/have_binlog_format_row.inc
--source include/have_log_bin.inc
# This is a big test.
--source include/big_test.inc
--echo #
--echo # Preparatory cleanup.
--echo #
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
--echo #
--echo # We need a fixed timestamp to avoid varying results.
--echo #
SET timestamp=1000000000;
--echo #
--echo # We need big packets.
--echo #
--echo # Capture initial value to reset at the end of the test
# use let $<var> = query_get_value as FLUSH statements
# in the test will set @<var> values to NULL
let $orig_max_allowed_packet =
query_get_value(SELECT @@global.max_allowed_packet, @@global.max_allowed_packet, 1);
--echo # Now adjust max_allowed_packet
SET @@global.max_allowed_packet= 1024*1024*1024;
--echo max_allowed_packet is a global variable.
--echo In order for the preceding change in max_allowed_packets' value
--echo to be seen and used, we must start a new connection.
--echo The change does not take effect with the current one.
--echo For simplicity, we just disconnect / reconnect connection default here.
disconnect default;
connect (default, localhost,root,,);
--echo #
--echo # Delete all existing binary logs.
--echo #
RESET MASTER;
--echo #
--echo # Create a test table.
--echo #
eval CREATE TABLE t1 (
c1 LONGTEXT
) ENGINE=$engine_type DEFAULT CHARSET latin1;
--echo #
--echo # Show how many rows are affected by each statement.
--echo #
--enable_info
--echo #
--echo # Insert some big rows.
--echo #
--echo 64MB
INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 4194304));
--echo 32MB
INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 2097152));
--echo 4MB
INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 262144));
--echo 512KB
INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 32768));
--echo #
--echo # Show what we have in the table.
--echo # Do not display the column value itself, just its length.
--echo #
--sorted_result
query_vertical SELECT LENGTH(c1) FROM t1;
--echo #
--echo # Grow the rows by updating.
--echo #
UPDATE t1 SET c1 = CONCAT(c1, c1);
--echo #
--echo # Show what we have in the table.
--echo # Do not display the column value itself, just its length.
--echo #
--sorted_result
query_vertical SELECT LENGTH(c1) FROM t1;
--echo #
--echo # Delete the rows.
--echo #
DELETE FROM t1 WHERE c1 >= 'ManyMegaByteBlck';
--echo #
--echo # Hide how many rows are affected by each statement.
--echo #
--disable_info
--echo #
--echo # Flush all log buffers to the log file.
--echo #
FLUSH LOGS;
--echo #
--echo # Call mysqlbinlog to display the log file contents.
--echo # NOTE: The output of mysqlbinlog is redirected to
--echo # \$MYSQLTEST_VARDIR/$mysqlbinlog_output
--echo # If you want to examine it, disable remove_file
--echo # at the bottom of the test script.
--echo #
let $MYSQLD_DATADIR= `select @@datadir`;
--replace_result $MYSQLTEST_VARDIR <MYSQLTEST_VARDIR>
--replace_regex /SQL_LOAD_MB-[0-9]-[0-9]/SQL_LOAD_MB-#-#/ /exec_time=[0-9]*/exec_time=#/ /end_log_pos [0-9]*/end_log_pos #/ /# at [0-9]*/# at #/ /Xid = [0-9]*/Xid = #/
--exec $MYSQL_BINLOG -v -v $MYSQLD_DATADIR/master-bin.000001 > $MYSQLTEST_VARDIR/$mysqlbinlog_output
--echo #
--echo # Cleanup.
--echo #
--echo # reset variable value to pass testcase checks
eval SET @@global.max_allowed_packet = $orig_max_allowed_packet;
DROP TABLE t1;
--echo remove_file \$MYSQLTEST_VARDIR/$mysqlbinlog_output
#
# NOTE: If you want to see the *huge* mysqlbinlog output, disable next line:
#
--remove_file $MYSQLTEST_VARDIR/$mysqlbinlog_output
|
