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ParserSQL/include/sql_engine/operator.h at main · ProxySQL/ParserSQL · GitHub

18 lines (13 loc) · 333 Bytes

#ifndef SQL_ENGINE_OPERATOR_H
#define SQL_ENGINE_OPERATOR_H
#include "sql_engine/row.h"
namespace sql_engine {
class Operator {
    virtual ~Operator() = default;
    virtual void open() = 0;
    virtual bool next(Row& out) = 0;
    virtual void close() = 0;
} // namespace sql_engine
#endif // SQL_ENGINE_OPERATOR_H

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