a.UUID AS "uuid", a.SYMBOL AS "symbol", a.BASE_CURRENCY AS "baseCurrency", a.QUOTE_CURRENCY AS "quoteCurrency", a.PRICE_PRECISION AS "pricePrecision", a.STATE AS "state", a.LEVERAGE_RATIO AS "leverageRatio" SELECT FROM t_symbols a WHERE a.uuid = #{id} and a.del_flag = 0 SELECT FROM t_symbols a ${ew.customSqlSegment}