如何查找繼承列？

Question

我想獲取數據庫中繼承列的列表。有沒有我可以用來找到這個問題的查詢？

我使用PostgreSQL 8.3

Answer 1

下面是一個簡單的查詢做到這一點：

select relname as table_name, attname as column_name 
from pg_class 
join pg_inherits on pg_class.oid = pg_inherits.inhrelid 
join pg_attribute on pg_inherits.inhparent = attrelid 
where attnum > 0;