The where node

Filter points and batches with a lambda expression, which returns a boolean value.

Data-items for which the lambda expression evaluates as false will be discarded.


|where(lambda: hour("ts") < 18 AND hour("ts") > 8 )

Discards every point who's timestamp is not between 09:00 and 18:00 UTC.


Parameter Description Default
[node] lambda( lambda ) The lambda filter expression