mysql-test/r/ndb_subquery.result:
  Add testing of new 4006 handling
mysql-test/t/ndb_subquery.test:
  Add testing of new 4006 handling
ndb/include/ndbapi/Ndb.hpp:
  Check #transactions in startTransaction instead of getNdbCon
ndb/src/ndbapi/Ndb.cpp:
  Check #transactions in startTransaction instead of getNdbCon
ndb/src/ndbapi/NdbScanOperation.cpp:
  Check #transactions in startTransaction instead of getNdbCon
ndb/src/ndbapi/Ndbif.cpp:
  Check #transactions in startTransaction instead of getNdbCon
ndb/src/ndbapi/Ndbinit.cpp:
  Check #transactions in startTransaction instead of getNdbCon
ndb/src/ndbapi/Ndblist.cpp:
  Check #transactions in startTransaction instead of getNdbCon
ndb/test/ndbapi/testNdbApi.cpp:
  Check #transactions in startTransaction instead of getNdbCon
ndb/test/run-test/daily-basic-tests.txt:
  Check #transactions in startTransaction instead of getNdbCon
sql/ha_ndbcluster.cc:
  Check #transactions in startTransaction instead of getNdbCon