Re: Re: [SQL] Re: [GENERAL] lztext and compression ratios...

At 22:28 7/07/00 -0400, Tom Lane wrote:
>
>pg_dump is rather a different case.  I would want to see a runtime
>option *not* to use compression

That's there already; using -Z0 produces the same output as a mchine
without zlib.

>But making an uncompressed dump today doesn't invalidate
>the compressed dump you made yesterday, nor vice versa.

Not sure what you mean here.


>Good point.  If we include zlib in the distribution it would be pretty
>silly for pg_dump not to use it.  If we don't, then Peter's remarks
>about not liking an environment-determined feature set are relevant.

zlib seems to have been ported to zillions of architectures (must be a good
design ;-}), so it's probably pretty safe to put in the source tree, and
I'm sure any porting problems we encounter would be useful to the zlib
maintainers.

If we don't want to use zlib, then fefore using Jan's compression code in
pg_dump, I suppose I'd need to know that the output is compatible across
32/64 bit architectures and is not sensitive to other issues like endian-ness.


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