Method IsVirtual

be/src/runtime/descriptors.h:151–151

  TVirtualColumnType::type virtual_column_type() const { return virtual_column_type_; }
  bool IsVirtual() const { return virtual_column_type_ != TVirtualColumnType::NONE; }

  std::optional<int32_t> struct_field_idx() const { return struct_field_idx_; }