#pragma once #include #include namespace DB { /** Запрос с указанием названия таблицы и, возможно, БД и секцией FORMAT. */ class ASTQueryWithTableAndOutput : public ASTQueryWithOutput { public: String database; String table; ASTQueryWithTableAndOutput() = default; ASTQueryWithTableAndOutput(const StringRange range_) : ASTQueryWithOutput(range_) {} protected: void formatHelper(const FormatSettings & settings, FormatState & state, FormatStateStacked frame, const char * name) const { settings.ostr << (settings.hilite ? hilite_keyword : "") << name << " " << (settings.hilite ? hilite_none : "") << (!database.empty() ? backQuoteIfNeed(database) + "." : "") << backQuoteIfNeed(table); } }; /// Объявляет класс-наследник ASTQueryWithTableAndOutput с реализованными методами getID и clone. #define DEFINE_AST_QUERY_WITH_TABLE_AND_OUTPUT(Name, ID, Query) \ class Name : public ASTQueryWithTableAndOutput \ { \ public: \ Name() = default; \ Name(const StringRange range_) : ASTQueryWithTableAndOutput(range_) {} \ String getID() const override { return ID"_" + database + "_" + table; }; \ \ ASTPtr clone() const override \ { \ std::shared_ptr res = std::make_shared(*this); \ res->children.clear(); \ cloneOutputOptions(*res); \ return res; \ } \ \ protected: \ void formatQueryImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const override \ { \ formatHelper(settings, state, frame, Query); \ } \ }; }