ClickHouse/dbms/include/DB/Parsers/ASTCheckQuery.h

#pragma once

#include <DB/Parsers/ASTQueryWithOutput.h>

namespace DB
{

struct ASTCheckQuery : public ASTQueryWithOutput
{
    ASTCheckQuery(StringRange range_ = StringRange()) : ASTQueryWithOutput(range_) {};

    /** Получить текст, который идентифицирует этот элемент. */
    String getID() const override { return ("CheckQuery_" + database + "_" + table); };

    ASTPtr clone() const override
    {
        auto res = std::make_shared<ASTCheckQuery>(*this);
        res->children.clear();
        cloneOutputOptions(*res);
        return res;
    }

    std::string database;
    std::string table;

protected:
    void formatQueryImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const override
    {
        std::string nl_or_nothing = settings.one_line ? "" : "\n";

        std::string indent_str = settings.one_line ? "" : std::string(4 * frame.indent, ' ');
        std::string nl_or_ws = settings.one_line ? " " : "\n";

        settings.ostr << (settings.hilite ? hilite_keyword : "") << indent_str << "CHECK TABLE " << (settings.hilite ? hilite_none : "");

        if (!table.empty())
        {
            if (!database.empty())
            {
                settings.ostr << (settings.hilite ? hilite_keyword : "") << indent_str << backQuoteIfNeed(database) << (settings.hilite ? hilite_none : "");
                settings.ostr << ".";
            }
            settings.ostr << (settings.hilite ? hilite_keyword : "") << indent_str << backQuoteIfNeed(table) << (settings.hilite ? hilite_none : "");
        }
    }
};

}