Re: [PATCHES] COPY with no WAL, in certain circumstances - Mailing list pgsql-hackers

> > Is there some technical reason that the INSERT statements need to use WAL in
> > these scenarios?
>
> First, there's enough other overhead to an INSERT that you'd not save
> much percentagewise.  Second, not using WAL doesn't come for free: the
> cost is having to fsync the whole table afterwards.  So it really only
> makes sense for commands that one can expect are writing pretty much
> all of the table.  I could easily see it being a net loss for individual
> INSERTs.

What about multi value inserts? Just curious.

Joshua D. Drake


>
>             regards, tom lane
>
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