Re: Inheritance
От | Peter Eisentraut |
---|---|
Тема | Re: Inheritance |
Дата | |
Msg-id | Pine.GSO.4.02A.10005301239010.10362-100000@Leopard.DoCS.UU.SE обсуждение исходный текст |
Ответ на | Inheritance (Christophe Labouisse <labouiss@cybercable.fr>) |
Список | pgsql-sql |
On 30 May 2000, Christophe Labouisse wrote: > I have a table (A) with a few "sibbling" tables (B and C for You probably mean "child" tables. > instance). When I make the following query : select id from A* where > [condition] pgsql returns ids taken from A, B or C (which is what I > want). Is there a way to know to what table the id actually belong ? No. We're kind of pondering a way to solve this. However, according to the SQL99 data model, the row is shared between A and B or C respectively, so when you select from a* then you get rows from "a", period. I know this doesn't help in practice, though. -- Peter Eisentraut Sernanders väg 10:115 peter_e@gmx.net 75262 Uppsala http://yi.org/peter-e/ Sweden
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