Re: RETURNING syntax for COPY

On 05/08/2013 01:16 PM, Tom Lane wrote:

> That would require the backend to buffer the entire query response,
> which isn't a great idea.  I would expect that such an operation would
> need to interleave CopyData to the backend with DataRow responses.  Such
> a thing could possibly be built on COPY_BOTH mode, but it would be a lot
> of work (at both ends) for extremely debatable value.
>
> The general idea of COPY is to load data as fast as possible, so weighing
> it down with processing options seems like a pretty dubious idea even if
> the implementation were easy.
>
>             


That was my reaction. I would look it this very skeptically.

cheers

andrew