Excerpts from Fujii Masao's message of mié dic 15 00:54:39 -0300 2010:
> Hi,
>
> I found a bug which always prevents SignalSomeChildren with
> BACKEND_TYPE_WALSND from sending a signal to walsender.
>
> Though currently SignalSomeChildren with BACKEND_TYPE_WALSND
> has not been called anywhere, it's not hard to believe that will
> be called in the future. So we should apply the following change.
BTW doesn't CountChildren have the same problem?
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Álvaro Herrera <alvherre@commandprompt.com>
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