Tom Lane <t...@sss.pgh.pa.us> wrote:
 
> I think that what Kevin was on about was something else entirely,
> namely whether we need to retry writes to disk.
 
I would phrase it that we need to *continue* a write to disk if the
OS chooses to write a portion of it and return to the caller with
the number actually written.  If the first write, or any later
write, actually gets an error or fails to make progress, *then* we
should consider the attempt to be done.  I don't understand the
point of not coding to the API.
 
-Kevin

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