Queue scan on real fragment.
  Index fragment for range scans
  Table fragment for table scans


ndb/src/kernel/blocks/dblqh/Dblqh.hpp:
  Document meaning of fragPtrI and how it differs
    from scanTcRec->fragmentptr
ndb/src/kernel/blocks/dblqh/DblqhMain.cpp:
  Queue scan on real fragment.
    Index fragment for range scans
    Table fragment for table scans
ndb/src/ndbapi/NdbConnection.cpp:
  Check tOp before assigning