Preserve: specifies the time for which knowledge is retained. Enter a price amongst 1 and 365000. The default price is 3650. The value in the Maintain parameter need to be higher than or equivalent to the value of your DURATION parameter. TDengine automatically deletes knowledge that's more mature than the https://tdenginedatabase55318.tribunablog.com/helping-the-others-realize-the-advantages-of-tdengine-database-33718444