Hi, I think we can follow what Tian Jiang said to check whether KairosDB considering it as a Long rather than a Float.
By the way, as Jialin and Julian said, I think it is ok if we print 0.0 for Float 0. Best, ----------------------------------- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Tian Jiang <jt2594...@163.com> 于2019年9月5日周四 上午4:21写道： > Hi, > > > If I don't get it wrong, KariosDB need not to create schema ahead and > automatically inferences datatype. So there is a good chance that your `0` > will be recognized as a long instead of a float. > > > Tian Jiang > > > | | > Tian Jiang > | > | > jt2594...@163.com > | > 签名由网易邮箱大师定制 > On 9/5/2019 16:13，Jialin Qiao<qj...@mails.tsinghua.edu.cn> wrote： > Hi, > > When I try the following java codes, it always print 0.0. > > ``` > float a = 0f; > System.out.println(a); > a = 0.0f; > System.out.println(a); > double b = 0d; > System.out.println(b); > b = 0.0d; > System.out.println(b); > ``` > > I think it is fine to print 0.0 in the IoTDB Client, as long as it is a > float value (0f). I wonder how could KairosDB print 0... > > Best, > -- > Jialin Qiao > School of Software, Tsinghua University > > 乔嘉林 > 清华大学 软件学院 > > -----原始邮件----- > 发件人: "勾王敏浩" <gwm...@mails.tsinghua.edu.cn> > 发送时间: 2019-09-05 15:02:27 (星期四) > 收件人: dev@iotdb.apache.org > 抄送: > 主题: time series with double datatype insert problem > > Hi, > Currently, we find that a time series with DATATYPE=DOUBLE, > ENCODING=GORILLA ,when insert a datapoint like (1,0) , it returns (1,0.0). > While in KairosDB, it returns (1,0). Do we need to modify this? > > > Thank you, > Wangminhao Gou > >
