timeSeriesMetricFamilies | ClickHouse Docs

timeSeriesMetricFamilies(db_name.time_series_table) - Returns the metric families table used by table db_name.time_series_table whose table engine is the TimeSeries engine:

CREATE TABLE db_name.time_series_table ENGINE=TimeSeries METRIC FAMILIES metric_families_table

The function also works if the metric families table is inner:

CREATE TABLE db_name.time_series_table ENGINE=TimeSeries METRIC FAMILIES INNER UUID '01234567-89ab-cdef-0123-456789abcdef'

The following queries are equivalent:

SELECT * FROM timeSeriesMetricFamilies(db_name.time_series_table);
SELECT * FROM timeSeriesMetricFamilies('db_name.time_series_table');
SELECT * FROM timeSeriesMetricFamilies('db_name', 'time_series_table');