SET @@session.auto_increment_increment=40960;
Warnings:
Warning	1292	Truncated incorrect auto_increment_increment value: '40960'
SELECT @@session.auto_increment_increment;
@@session.auto_increment_increment
8192
SET @@session.tmp_table_size=40960;
Warnings:
Warning	1292	Truncated incorrect tmp_table_size value: '40960'
SELECT @@session.tmp_table_size;
@@session.tmp_table_size
8192
SET @@session.max_join_size=40960;
Warnings:
Warning	1292	Truncated incorrect max_join_size value: '40960'
SELECT @@session.max_join_size;
@@session.max_join_size
8192