Re: Undocumented behavior od DROP SCHEMA ... CASCADE

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От Alvaro Herrera
Тема Re: Undocumented behavior od DROP SCHEMA ... CASCADE
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Msg-id 20160812205508.GA714477@alvherre.pgsql
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Ответ на Re: Undocumented behavior od DROP SCHEMA ... CASCADE  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: Undocumented behavior od DROP SCHEMA ... CASCADE  (Tom Lane <tgl@sss.pgh.pa.us>)
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Tom Lane wrote:

> I'm inclined to suggest that maybe the generic phrasing could be
> "Automatically drop objects that depend on the <whatever> [(such as ...)],
> and in turn all objects that depend on those objects".

I think it'd be a good idea to add some more discoverability: what would
be deleted if an object X were to be deleted?  I suppose this is just a
recursive query on pg_depend, but expecting users to handle that on
their own is preposterous.  We could offer a simple function, to which
you pass classid, objid, objsubid, returns setof same plus obj_description.

--
Álvaro Herrera                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services


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