Re: TopoSort() fix

On 2019-Jul-29, Tom Lane wrote:

> FYI, I just got done inventing a way to reach that code, and I have
> to suspect that it's impossible to do so in production, because under
> ordinary circumstances no parallel worker will take any exclusive lock
> that isn't already held by its leader.

Hmm, okay, so this wasn't a bug that would have bit anyone in practice,
yeah?  That's reassuring.

Thanks,

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
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