postgresql 查询表结构

sql查询

SELECT
 A.attnum,
	( SELECT description FROM pg_catalog.pg_description WHERE objoid = A.attrelid AND objsubid = A.attnum ) AS descript,
	A.attname,
	( select typname from pg_type where oid = A.atttypid) AS type,
	A.atttypmod AS data_type
FROM
	pg_catalog.pg_attribute A
WHERE
	1 = 1
	AND A.attrelid = ( SELECT oid FROM pg_class WHERE relname = '表名' )
	AND A.attnum > 0
	AND NOT A.attisdropped
ORDER BY
	A.attnum;