text: #include <Processors/QueryPlan/ReadNothingStep.h>
  #include <Processors/QueryPipeline.h>
  #include <Processors/Sources/NullSource.h>
  
  namespace DB
  {
  
  ReadNothingStep::ReadNothingStep(Block output_header)
      : ISourceStep(DataStream{.header = std::move(output_header), .has_single_port = true})
  {
  }
  
  void ReadNothingStep::initializePipeline(QueryPipeline & pipeline)
  {
      pipeline.init(Pipe(std::make_shared<NullSource>(getOutputStream().header)));
  }
  
  }
  