- return column named time or time_sec (in UTC), as a unix time stamp or any sql native date data type. You can use the macros below.
- return column(s) with numeric datatype as values
- (Optional: return column named <i>metric</i> to represent the series name. If no column named metric is found the column name of the value column is used as series name)
Optional:
- return column named <i>metric</i> to represent the series name.
- If multiple value columns are returned the metric column is used as prefix.
- If no column named metric is found the column name of the value column is used as series name