Was experienced with MYSQL, ODBC and JDBC tables.
  modified:   storage/connect/connect.cc

- Fix MDEV-9966 (zero lines returned)
  modified:   storage/connect/ha_connect.cc
  modified:   storage/federatedx/ha_federatedx.cc

- Typo
  modified:   storage/connect/odbconn.cpp
  modified:   storage/connect/reldef.cpp
  modified:   storage/connect/tabmysql.cpp

- Add new table type JDBC
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/mycat.cc
  modified:   storage/connect/plgdbsem.h
  modified:   storage/connect/plgdbutl.cpp
  modified:   storage/connect/tabodbc.cpp
  added:      storage/connect/jdbccat.h
  added:      storage/connect/jdbconn.cpp
  added:      storage/connect/jdbconn.h
  added:      storage/connect/tabjdbc.cpp
  added:      storage/connect/tabjdbc.h