I have a question about inserting data into Apache IoTDB. When I try to insert null value into a field of time series, an error message prompted that Msg: 507: Fail to insert measurements [ds] caused by [Path [root. testl.pl. W3:XX:11:C1.ds] does not exist. I tried to set the value to an empty string, then this value is inserted succeed. So what should I do if I want to set this field to double type?
If this time series in Apache IoTDB does not exist before, you cannot directly use insert null command because the data type cannot be inferred from the history recorded. If you have created it in advance using create timeseries command, no error will be reported when inserting null value, so you can try to create this time series first.