On Tue, Mar 6, 2012 at 4:01 PM, Alvaro Herrera
<alvhe...@commandprompt.com> wrote:
> Why do we need a ticker?  Just fetch the time of the task closest in the
> future, and sleep till that time or a notify arrives (meaning schedule
> change).

Because that can't be done in userland (at least, not without stored
procedures) since you'd have to keep an open running transaction while
sleeping.

merlin

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