postfix=# select version();
                                                 version
----------------------------------------------------------------------------------------------------------
 PostgreSQL 10.17 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44), 64-bit
(1 row)

SELECT create_range_partitions('canonical_maps_archive', 'create_timestamp', '2019-01-01'::date, '1 year'::interval);
ERROR:  function create_range_partitions(unknown, unknown, date, interval) does not exist
LINE 1: SELECT create_range_partitions('canonical_maps_archive', 'cr...
               ^
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.

SELECT
    n.nspname AS function_schema,
    p.proname AS function_name
FROM
    pg_proc p
    LEFT JOIN pg_namespace n ON p.pronamespace = n.oid
WHERE
    n.nspname NOT IN ('pg_catalog', 'information_schema')
ORDER BY
    function_schema,
    function_name;