- Fix and error causing remote indexing to fail when for not unique index.

  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

Author: Buggynours

storage/connect/connect.cc

@@ -752,7 +752,7 @@ RCODE CntIndexRead(PGLOBAL g, PTDB ptdb, OPVAL op,
     return RC_FX;
   } else if (x == 2) {
     // Remote index
-    if (ptdb->ReadKey(g, op, kr))
+    if (op != OP_SAME && ptdb->ReadKey(g, op, kr))
       return RC_FX;
 
     goto rnd;