Function getOperatorInfo

src/Processors/QueryPlan/QueryPlanFormat.cpp:195–200

        };

        std::optional<OperatorInfo> getOperatorInfo(const std::string & func_name)
        {
            if (auto info = tryGetExpressionOperatorPrettyInfo(func_name))
                return OperatorInfo{info->symbol, info->precedence};
            return std::nullopt;
        }

        String formatConstant(const ActionsDAG::Node * node)
        {