How to retrieve the partition info for each partition table?

HI,

I have created some partition table, as example bellow:
CREATE TABLE public.measurement
(
city_id integer NOT NULL,
logdate date NOT NULL,
peaktemp integer,
unitsales integer
) PARTITION BY RANGE (logdate) ;

CREATE TABLE public.measurement_y2006m02 PARTITION OF public.measurement
FOR VALUES FROM ('2006-02-01') TO ('2006-03-01');

CREATE TABLE public.measurement_y2006m03 PARTITION OF public.measurement
FOR VALUES FROM ('2006-03-01') TO ('2006-04-01');

I know how to get a list partition tables for above example by calling :

SELECT i.inhrelid::regclass AS child

FROM pg_inherits i

WHERE i.inhparent = 'public.measurement'::regclass;

My question is: how to get the value boundary for each partition table like
bellow?

measurement_y2006m02 FROM ('2006-02-01') TO ('2006-03-01')

measurement_y2006m03 FROM ('2006-03-01') TO ('2006-04-01')

Thanks,

Yuxia