Get flow time series stats data filter by certain query parameters and certain appliance IDs.

This operation returns a JSON object containing COLUMN_DEF and DATA. COLUMN_DEF is an array containing the names indicating what corresponding number in data array means. Data objects of each appliance is an array of data arrays, each data array contains the stats for a particular timestamp. Each number is data array corresponds to a name in COLUMN_DEF.
DATA object contains only values not keys.