mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 12:02:42 +01:00
4fda8858b1
Altered the test to accommodate the new behavior of max_allowed_packet. Had to disconnect / reconnect the default connection for the new value to register. Re-enabled certain parts of the test that were commented out and added some setup / cleanup code to ensure proper reset of max_allowed_packet at the end of the test. Re-recorded the .result file to account for changes to the test.
102 lines
2.4 KiB
Text
102 lines
2.4 KiB
Text
#
|
|
# Preparatory cleanup.
|
|
#
|
|
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= 1024*1024*1024;
|
|
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.
|
|
Disconnecting default connection...
|
|
Reconnecting default connection...
|
|
default connection established, continuing with the test
|
|
#
|
|
# Delete all existing binary logs.
|
|
#
|
|
RESET MASTER;
|
|
#
|
|
# Create a test table.
|
|
#
|
|
CREATE TABLE t1 (
|
|
c1 LONGTEXT
|
|
) ENGINE=MyISAM DEFAULT CHARSET latin1;
|
|
#
|
|
# Show how many rows are affected by each statement.
|
|
#
|
|
#
|
|
# Insert some big rows.
|
|
#
|
|
256MB
|
|
INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 16777216));
|
|
affected rows: 1
|
|
32MB
|
|
INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 2097152));
|
|
affected rows: 1
|
|
4MB
|
|
INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 262144));
|
|
affected rows: 1
|
|
512KB
|
|
INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 32768));
|
|
affected rows: 1
|
|
#
|
|
# Show what we have in the table.
|
|
# Do not display the column value itself, just its length.
|
|
#
|
|
SELECT LENGTH(c1) FROM t1;
|
|
LENGTH(c1) 268435456
|
|
LENGTH(c1) 33554432
|
|
LENGTH(c1) 4194304
|
|
LENGTH(c1) 524288
|
|
affected rows: 4
|
|
#
|
|
# Grow the rows by updating.
|
|
#
|
|
UPDATE t1 SET c1 = CONCAT(c1, c1);
|
|
affected rows: 4
|
|
info: Rows matched: 4 Changed: 4 Warnings: 0
|
|
#
|
|
# Show what we have in the table.
|
|
# Do not display the column value itself, just its length.
|
|
#
|
|
SELECT LENGTH(c1) FROM t1;
|
|
LENGTH(c1) 536870912
|
|
LENGTH(c1) 1048576
|
|
LENGTH(c1) 67108864
|
|
LENGTH(c1) 8388608
|
|
affected rows: 4
|
|
#
|
|
# Delete the rows.
|
|
#
|
|
DELETE FROM t1 WHERE c1 >= 'ManyMegaByteBlck';
|
|
affected rows: 4
|
|
#
|
|
# Hide how many rows are affected by each statement.
|
|
#
|
|
#
|
|
# Flush all log buffers to the log file.
|
|
#
|
|
FLUSH LOGS;
|
|
#
|
|
# 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
|
|
SET @@global.max_allowed_packet = 1048576;
|
|
DROP TABLE t1;
|
|
remove_file $MYSQLTEST_VARDIR/tmp/mysqlbinlog_big_1.out
|