Peter Eisentraut <pete...@gmx.net> writes:
> On tor, 2011-05-26 at 16:54 -0400, Tom Lane wrote:
>> But if you want to take such an extension into account right now,
>> maybe we ought to design that feature now. What are you seeing it as
>> looking like?
>>
>> My thought is that "-z" should just mean "give me compression; a good
>> default compression setting is fine". "-Zn" could mean "I want gzip
>> with exactly this compression level" (thus making the presence or
>> absence of -z moot). If you want to specify some other compression
>> method altogether, use something like --lzma=N. It seems unlikely to
>> me that somebody who wants to override the default compression method
>> wouldn't want to pick the settings for it too.
> I think of pg_basebackup as analogous to tar. tar has a bunch of
> options to set a compression method (-Z, -z, -j, -J), but no support for
> setting compression specific options. So in that sense that contradicts
> your suspicion.
I would think we'd be more concerned about preserving an analogy to
pg_dump, which most certainly does expose compression-quality options.
regards, tom lane
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