Re: [HACKERS] DROP COLUMN misbehaviour with multiple inheritance

I am keeing this patch so we have it to apply when we decide to force an
initdb:

    http://candle.pha.pa.us/cgi-bin/pgpatches

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Alvaro Herrera wrote:
> Alvaro Herrera dijo:
>
> > All right, I now have all the catalog changes on place; this is the easy
> > part (is an int2 count enough?).
> >
> > But when actually dropping a column, the recursion cannot be done the
> > way it's done now, fetching the whole inheritor tree in one pass,
> > because there's no way to distinguish the direct ones that have the
> > attisinherited count greater than 1 from deeper ones; it has to be done
> > step by step.
>
> Done.  I attach the patch.  It's huge because it needs to touch
> pg_attribute.h, but it is relatively simple.  This passes the regression
> tests and fixes the bug reported by Hannu.
>
> Please review and apply if OK.  I didn't touch catversion.h.
>
> --
> Alvaro Herrera (<alvherre[a]atentus.com>)
> "Cuando ma?ana llegue pelearemos segun lo que ma?ana exija" (Mowgli)

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