Confirmed on pt-osc version since 2.2.1 to 2.2.7, not seen on pt-osc versions 2.1.x or 2.0.x
root@ubuntu:/home/percona# pt-online-schema-change --user root --ask-pass --alter="MODIFY COLUMN i VARCHAR(255)" D=test,t=tbl_test --dry-run
Enter MySQL password:
Enter MySQL password:
Operation, tries, wait:
copy_rows, 10, 0.25
create_triggers, 10, 1
drop_triggers, 10, 1
swap_tables, 10, 1
update_foreign_keys, 10, 1
Confirmed on pt-osc version since 2.2.1 to 2.2.7, not seen on pt-osc versions 2.1.x or 2.0.x /home/percona# pt-online- schema- change --user root --ask-pass --alter="MODIFY COLUMN i VARCHAR(255)" D=test,t=tbl_test --dry-run foreign_ keys, 10, 1
root@ubuntu:
Enter MySQL password:
Enter MySQL password:
Operation, tries, wait:
copy_rows, 10, 0.25
create_triggers, 10, 1
drop_triggers, 10, 1
swap_tables, 10, 1
update_