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#ifndef IMPALA_EXEC_EMPTY_SET_NODE_H_
#define IMPALA_EXEC_EMPTY_SET_NODE_H_

#include "exec/exec-node.h"

namespace impala {

/// Node that returns an empty result set, i.e., just sets eos_ in GetNext().
/// Corresponds to EmptySetNode.java in the FE.
class EmptySetNode : public ExecNode {
 public:
  EmptySetNode(ObjectPool* pool, const TPlanNode& tnode, const DescriptorTbl& descs);
  virtual Status GetNext(RuntimeState* state, RowBatch* row_batch, bool* eos);
};

}

#endif