Reputation: 31
When I tried to use SQL to query the non-existing fields in time series of Apache IoTDB, why these fields are not displayed in the columns of the result sets? How can I set these non-existing fields to be displayed in the result queried and make its value to be null
?
Upvotes: 0
Views: 15
Reputation: 411
You can use create timeseries
command in Apache IoTDB to create a time series with these non-existing fields, then these fields will appear in the query results and the values will be null
.
Upvotes: 0