KEEP: specifies time for which facts is retained. Enter a worth between 1 and 365000. The default benefit is 3650. The value in the Retain parameter must be better than or equal to the value in the Length parameter. TDengine mechanically deletes details which is older than the worth of https://tdengine-database63602.liberty-blog.com/20147135/a-review-of-tdengine-database