xtrabackup is using posix regex syntax. It is true that it doesn't allow to negate the pattern.
We consider adding --exclude option, or another possibility to add --invert-match -like option (similar to grep -v).
xtrabackup is using posix regex syntax. It is true that it doesn't allow to negate the pattern.
We consider adding --exclude option, or another possibility to add --invert-match -like option (similar to grep -v).