| Possible values | Names | Descriptions |
|---|---|---|
| 4 | SA_UNKNOWN | Default value, defined for forward compatibility. |
| 0 | SA_NONE | No aggregation. |
| 1 | SA_X_GROUP_BY | Group by aggregation. Identical values of this symbol are merged. |
| 2 | SA_X_INTERVAL | Interval aggregation. Values are separated to intervals (e.g. 1 hour) and all values inside a single interval are merged. |
| 3 | SA_X_BOOLEAN_CONDITION | Deprecated, do not use. |
| 5 | SA_X_INTERVAL_LIST | List of intervals. Similar to SA_X_INTERVAL, values are separated to intervals of various length (e.g. last 1 day, 3 days, 7 days) and all values inside a single interval are merged. |
| 50 | SA_Y_COUNT | Count of individual values. |
| 51 | SA_Y_MINIMUM | Minimum from all values. |
| 52 | SA_Y_MAXIMUM | Maximum from all values. |
| 53 | SA_Y_SUM | Sum of all values. |
| 54 | SA_Y_AVERAGE | Average of all values. |
| 55 | SA_Y_MEDIAN | Median of all values. |
| 56 | SA_Y_MODE | Deprecated, do not use. |
| 57 | SA_Y_UNIQUE_COUNT | Count of unique values. E.g. unique_count(1, 2, 1, 3, 1) = 3. |
| 58 | SA_RELATIVE_TIME_INTERVAL | Relative time interval, time relative to "now". |
| 59 | SA_RELATIVE_TIME_INTERVAL_INCLUDE_UNDEFINED | Relative time interval, time relative to "now". No data is treated as -inf. |