Re: Re: Idea: recycle WAL segments, don't delete/recreate 'em

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> Hi -
> 
> pgman wrote:
> 
> : Most Unix filesystems will not allocate disk blocks until you write in
> : them.  [...]
> 
> Yes, I understand that, but how is it a problem for postgresql?

Uh, I thought we did that so we were not allocating file system blocks
during WAL writes.  Performance is bad when we do that.

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