here I am sharing my actual use case.
-- Function: public.sample_json_array(json)
-- DROP FUNCTION public.sample_json_array(json);
CREATE OR REPLACE FUNCTION public.sample_json_array(vin_ip_param json)
RETURNS void AS
$BODY$
Declare
v_text text;
arr integer[];
cnt integer := 1;
val varchar;
BEGIN
/*
SELECT sample_json_array(' {
"vin_loc_cd" : [1, 2, 3],
"vin_comp_cd" : [5, 6, 7]
}
');
*/
DROP TABLE IF EXISTS my_loc ;
raise notice 'ABC %', (SELECT d.value FROM json_each_text(vin_ip_param) AS d WHERE d.key='vin_loc_cd' );
CREATE TEMP TABLE my_loc AS
(SELECT * from epps_admin.epps_location_mst lm
WHERE
lm.loc_cd In
(SELECT d.value FROM json_each_text(vin_ip_param) AS d WHERE d.key='vin_loc_cd' )
);
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
ALTER FUNCTION public.sample_json_array(json)
OWNER TO epps_programmer;