Method getMasterTuple

be/src/runtime/descriptors.h:664–664

  bool isTupleOfStructSlot() const { return master_tuple_ != nullptr; }

  TupleDescriptor* getMasterTuple() const { return master_tuple_; }
  void setMasterTuple(TupleDescriptor* desc) { master_tuple_ = desc; }

  /// Return true if the physical layout of this descriptor matches that of other_desc,