"Jim C. Nasby" <[EMAIL PROTECTED]> writes:
> Actually, I guess the amount of memory used for zlib's lookback buffer
> (or whatever they call it) could be pretty substantial, and I'm not sure
> if there would be a way to combine that across all tapes.

But there's only one active write tape at a time.  My recollection of
zlib is that compression is memory-hungry but decompression not so much,
so it seems like this shouldn't be a huge deal.

                        regards, tom lane

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