CREATE TABLE foo (
	price_detail NUMERIC(14,2)[]
);

SELECT
  col.*, '|||', e.*
FROM information_schema.columns col
  LEFT JOIN information_schema.element_types e
    ON ((col.table_catalog, col.table_schema, col.table_name, 'TABLE', col.dtd_identifier)
        = (e.object_catalog, e.object_schema, e.object_name, e.object_type, e.collection_type_identifier))
WHERE
  col.column_name = 'price_detail'
ORDER BY col.table_name, col.ordinal_position

SELECT price_detail FROM foo LIMIT 0

SELECT
  c.relname,
  att.attname,
  format_type(ty.oid,att.atttypmod) AS displaytypname,
  des.description,
  pg_catalog.pg_get_expr(def.adbin, def.adrelid) AS defval,
  att.attnotnull,
  att.attinhcount,
  att.attnum
FROM pg_attribute att
  JOIN pg_type ty ON ty.oid=atttypid
  LEFT OUTER JOIN pg_attrdef def ON adrelid=att.attrelid AND adnum=att.attnum
  LEFT OUTER JOIN pg_description des ON (des.objoid=att.attrelid AND des.objsubid=att.attnum AND des.classoid='pg_class'::regclass)
  LEFT JOIN pg_class c ON c.oid = att.attrelid
WHERE att.attnum > 0
      AND att.attisdropped IS FALSE
      AND c.relkind = 'r'
      AND c.relnamespace = (SELECT nc.oid FROM pg_namespace nc WHERE nc.nspname = 'jp')
ORDER BY c.relname, att.attnum;