Merge Revision revid:marko.makela@oracle.com-20100622115215-kxtzx7xuugcxd375 from MySQL InnoDB
Original revid:marko.makela@oracle.com-20100622115215-kxtzx7xuugcxd375
Original Authors: Marko Mäkelä <marko.makela@oracle.com>
Original commit message:
Bug#54686 "field->col->mtype == type" assertion error at row/row0sel.c
ha_innobase::index_read(), ha_innobase::records_in_range(): Check that
the index is useable before invoking row_sel_convert_mysql_key_to_innobase().
This fix is based on a suggestion by Yasufumi Kinoshita.