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Re: Tentative patch for making DROP put dependency info in DETAIL

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
Cc: pgsql-patches(at)postgreSQL(dot)org
Subject: Re: Tentative patch for making DROP put dependency info in DETAIL
Date: 2008-06-11 22:07:45
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-patches
Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
> Tom Lane wrote:
>> ...  I wonder if it would
>> be worth refactoring the code so that a multiple-object DROP is
>> implemented via performMultipleDeletions().  This would have more
>> than just cosmetic advantages: it would no longer matter what
>> order you listed the tables in.  But the refactoring required looks
>> bigger and more tedious than I want to tackle right now.

> Hmm, this is a bit ugly.  I'd vote for doing the refactoring.  However,
> I'd say you should commit the patch you currently have and let one of
> the younger hackers fix that problem -- it looks like an good beginner
> project.

Agreed --- I committed what I had, anyone want to volunteer for
refactoring the execution of DropStmt?

After looking again, I think that this is not technically very
difficult, but coming up with something that looks tasteful to everyone
might be tricky.  In particular I didn't see a nice way to do it without
using struct ObjectAddress in a bunch of header files that don't
currently include dependency.h.  A possible response to that is to move
ObjectAddress into postgres.h, but that seems a bit ugly too.

			regards, tom lane

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Next:From: Alvaro HerreraDate: 2008-06-11 22:11:47
Subject: Re: Tentative patch for making DROP put dependency infoin DETAIL
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Subject: Re: Refactoring xlogutils.c

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