Handle discovery, insert, update and delete
Add support for Pipeline
  modified:   storage/connect/tabmgo.cpp
  modified:   storage/connect/tabmgo.h

Handle double call to CondPush
Cond moved to TDB
  modified:   storage/connect/ha_connect.cc
  modified:   storage/connect/tabext.cpp
  modified:   storage/connect/tabext.h
  modified:   storage/connect/tabjdbc.cpp
  modified:   storage/connect/table.cpp
  modified:   storage/connect/tabmysql.cpp
  modified:   storage/connect/tabodbc.cpp
  modified:   storage/connect/xtable.h

Add building Mongo selector to FILTER
  modified:   storage/connect/filter.cpp
  modified:   storage/connect/filter.h

Change Print function of values (needed by FILTER)
  modified:   storage/connect/value.cpp
  modified:   storage/connect/value.h

Fix crash when dbname is null forJSON MGO tables
  modified:   storage/connect/tabjson.cpp
  modified:   storage/connect/tabjson.h

Fix MDEV-12520: Decimal values can be truncated for JDBC tables
  modified:   storage/connect/jdbconn.cpp

Fix bug. Date value was null when retrieved from a json expanded array.
  modified:   storage/connect/tabjson.cpp