package data_manage import ( "github.com/beego/beego/v2/client/orm" "time" ) type EdbDataPb struct { EdbDataId int `orm:"column(edb_data_id);pk"` EdbInfoId int EdbCode string DataTime string Value float64 Status int CreateTime time.Time ModifyTime time.Time Ticker string Field string DataTimestamp int64 } func GetEdbDataPbMaxOrMinDate(edbCode string) (min_date, max_date string, err error) { o := orm.NewOrmUsingDB("data") sql := ` SELECT MIN(data_time) AS min_date,MAX(data_time) AS max_date FROM edb_data_pb WHERE edb_code=? ` err = o.Raw(sql, edbCode).QueryRow(&min_date, &max_date) return }