Interface | Description |
---|---|
Aggregate |
This interface defines an aggregation function used by the history query system.
|
TagHistoryQueryParams |
This interface defines the parameters for a tag history query.
|
TagHistoryQueryProvider |
Class | Description |
---|---|
AdHocPythonAggregate |
Defines an aggregation function that is defined in python.
|
AggregateInfo | |
BasicTagHistoryQueryParams | |
TagHistoryQueryFlags |
This class defines static values that can be set on the flags field of
TagHistoryQueryParams in order to
change the behavior of the query. |
Enum | Description |
---|---|
AggregationMode |
Dictates how multiple history values are "aggregated" together in order to form a result for a given time slice.
|
InterpolationMode |
Describes how values are interpolated/extrapolated in the history system.
|
ReturnFormat |
Specifies how data is returned for history queries.
|