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#pragma once
#include <Processors/QueryPlan/IQueryPlanStep.h>
#include <Parsers/ASTSelectIntersectExceptQuery.h>
namespace DB
{
class IntersectOrExceptStep : public IQueryPlanStep
{
public:
using Operator = ASTSelectIntersectExceptQuery::Operator;
/// max_threads is used to limit the number of threads for result pipeline.
IntersectOrExceptStep(DataStreams input_streams_, Operator operator_, size_t max_threads_ = 0);
String getName() const override { return "IntersectOrExcept"; }
QueryPipelineBuilderPtr updatePipeline(QueryPipelineBuilders pipelines, const BuildQueryPipelineSettings & settings) override;
void describePipeline(FormatSettings & settings) const override;
private:
Block header;
Operator current_operator;
size_t max_threads;
};
}
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