tokudb does not implement the DB_RMW cursor get flag.  updates were gettting EINVAL fromthe storage engine. tokudb turns read locks into write locks when required, to the flag is just an optimization.  we plan on replacing the affected code with the tokudb delete both method in the future.



git-svn-id: file:///svn/mysql/tokudb-engine/src@2769 c7de825b-a66e-492c-adef-691d508d4ae1