Aggregation.h

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#ifndef PLAN_AGGREGATION_H
#define PLAN_AGGREGATION_H
 
#include "plan/PlanNode.h"
#include "expr/ExprNode.h"
#include "catalog/systables/Aggregation.h"
 
namespace taco {
 
class AggregationState;
 
class Aggregation: public PlanNode {
public:
    static std::unique_ptr<Aggregation>
    Create(std::unique_ptr<PlanNode>&& child,
           std::vector<std::unique_ptr<ExprNode>>&& exprs,
           const std::vector<AggType>& aggtyps);
 
    ~Aggregation() override;
 
    void node_properties_to_string(std::string& buf, int indent) const override;
 
    std::unique_ptr<PlanExecState> create_exec_state() const override;
 
    const Schema* get_output_schema() const override;
 
private:
    Aggregation(std::unique_ptr<PlanNode>&& child,
                std::vector<std::unique_ptr<ExprNode>>&& exprs,
                const std::vector<AggType>& aggtyps);
 
 
    // AggType m_aggtyp;
    // Oid m_aggid;
    std::unique_ptr<Schema> m_schema;
    std::vector<std::unique_ptr<ExprNode>> m_exprs;
    std::vector<std::shared_ptr<const SysTable_Aggregation>> m_aggfuncs;
 
    friend class AggregationState;
};
 
}    // namespace taco
 
#endif