PostgreSQL中使用SQL查询表结构（转自：http://deepfuture.iteye

SELECT a.attnum,a.attname AS field,t.typname AS type,a.attlen AS length,a.atttypmod AS lengthvar,a.attnotnull AS notnull
	FROM pg_class c,pg_attribute a,pg_type t
	WHERE c.relname = 'person' and a.attnum > 0 
		and a.attrelid = c.oid and a.atttypid = t.oid
	ORDER BY a.attnum;

（编辑：李大同）

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