The delete node

Delete fields and/or tags from a data_point or from all data_points in a data_batch.

Optionally a lambda function can be given to perform deletion only on those data_points for which the function returns true.

Example

|delete()
.fields('temp', 'data.meta[3]')

The above example will delete the field named temp and the third array entry of the field data.meta .

Conditional

|delete()
.fields('temp', 'data.meta[3]')
.where(lambda: "data.condition.id" == 2 OR "data.condition.name" == 'warning')

The above example will delete the field named temp and the third array entry of the field data.meta only if the current point has a field "data.condition.id" with value 2, or it has the field "data.condition.name" with value 'warning'.

Parameters

Parameter	Description	Default
fields( string_list )	list of fieldnames to delete	[]
tags( string_list )	list of tagnames to delete	[]
where( lambda )	lambda function for conditional deleting	undefined
when_value( any )	delete a field only, if it has the given value	undefined