Gregory Stark <[EMAIL PROTECTED]> writes:
> "Tom Lane" <[EMAIL PROTECTED]> writes:
>> Pretty much not happening; or are you volunteering to fix every part of
>> the system to tolerate injections of inserted data anywhere in a stored
>> datum?

> I was thinking to do it at a low level as the xlog records are prepared to be
> written to the filesystem and as the data is being read from disk. I haven't
> read that code yet to see where to inject it but I understand there's already
> a copy happening and it could be done there.

You understand wrong ... a tuple sitting on disk is normally read
directly from the shared buffer, and I don't think we want to pay for
copying it.

                        regards, tom lane

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