How to retrieve the partition info for each partition table?

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От Yuxia Qiu
Тема How to retrieve the partition info for each partition table?
Дата
Msg-id CAJ0a2RkkmBYEtqek5sKR-f19HS_hKjUf3KLZU7TASiZ9Z-MQLw@mail.gmail.com
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Ответы RE: How to retrieve the partition info for each partition table?
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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

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