> > No. It'd be a wire protocol break, and even if it weren't I would not > expect many clients to be able to deal with it. They're in the middle > of a query cycle (for the SELECT or CALL that got you into SPI), and > suddenly the backend asks for COPY data? What are they supposed to > send, or where are they supposed to put it for the COPY-out case? > There's just not provision for nesting protocol operations like that. >
What about running a COPY directly from C - is that possible?