From: | "Greg Sabino Mullane" <greg(at)turnstep(dot)com> |
---|---|
To: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Listen / Notify rewrite |
Date: | 2009-11-13 17:35:11 |
Message-ID: | 2e057b04ebcd0a0a449549e5afe39dd0@biglumber.com |
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Lists: | pgsql-hackers |
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> This is BS. The problem is not that someone might do something stupid
> with this feature. The problem is that we're making these other use
> cases into requirements which will influence the design. This is a
> classic "feature creep" situation and the result is normally products
> which solve none of the use cases especially well.
Feature creep? The payload has been on the roadmap for a long time. I don't
recall anyone objecting when Andrew was working on the next version of
Listen/Notify around what is probably a couple of years ago now.
> Remember this queue has to live in shared memory which is a fixed size
> resource. If you're designing a queue mechanism then you would
> naturally use something like a queue or priority queue.
Right, but we're not discussing a queue, we're discussing the listen/notify
system. If people want to mis-use it as a queue when they should be using
something else, so be it. Talk of efficiency also seems silly here - using
shared memory is already way more efficient than our current listen/notify
system.
- --
Greg Sabino Mullane greg(at)turnstep(dot)com
PGP Key: 0x14964AC8 200911131234
http://biglumber.com/x/web?pk=2529DF6AB8F79407E94445B4BC9B906714964AC8
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