postgresql根据结果集中某字段限定该字段相同值只获取20条

SELECT
T .company_id,
T .business_description_cn,
T .business_scope_cn,
T .company_tag_cn,
T .industry_id,
T .industry,
T .company_name_cn
FROM
(
SELECT
company_id,
business_description_cn,
business_scope_cn,
company_tag_cn,
industry_id,
config."dictionary".name_cn AS industry,
company_name_cn,
ROW_NUMBER() OVER(PARTITION BY industry_id) AS ROW
FROM
company_profile
LEFT JOIN config."dictionary" ON company_profile.industry_id = config."dictionary". ID
WHERE
industry_id IS NOT NULL
AND company_status_id LIKE '2%'
) T WHERE ROW <= 20