Re: Backpatch FK changes to 7.3 and 7.2?

Stephan Szabo wrote:
>
> On Tue, 8 Apr 2003, Tatsuo Ishii wrote:
>
> > > > The changes I committed to address most of the FK deadlock problems
> > > > reported can easily be applied to the 7.3 and 7.2 source trees as well.
> > > >
> > > > Except for a slight change in the text of the error message that gets
> > > > thrown "if one tries to delete a referenced PK for which a FK with ON
> > > > DELETE SET DEFAULT exists" (it's a rare case, believe me), this patch
> > > > would qualify for backpatching. The unnecessary FOR UPDATE lock of
> > > > referenced rows could be counted as a bug.
> > > >
> > > > Opinions?
> > >
> > > Since I seem to suffer from these horrible deadlock problems all the
> > > time, I'd like it to be backported to 7.3...
> >
> > Me too!
>
> As a note, this'll solve some of the deadlocks on fk update (generally the
> key values aren't touched) but not insert related ones (two rows inserted
> to the same primary key causing one to wait and possible deadlocks)
>
> In any case, why don't we get a patch against 7.3, and make an
> announcement and let people who are interested use it and test it. With
> in-field testing it'd probably be safe enough. :)

Here it is.

Jan

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