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postgresql 实现获取所有表名,字段名,字段类型,注释
获取表名及注释:select relname as tabname,cast(obj_description(relfilenode,'pg_class') as varchar) as comment from pg_
获取表名及注释:select relname as tabname,cast(obj_description(relfilenode,'pg_class') as varchar) as comment from pg_