Re: Faster compression, again - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Faster compression, again
Date
Msg-id 6302.1331762322@sss.pgh.pa.us
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In response to Re: Faster compression, again  (Daniel Farina <daniel@heroku.com>)
Responses Re: Faster compression, again
Re: Faster compression, again
List pgsql-hackers
Daniel Farina <daniel@heroku.com> writes:
> Given that, few I would say have had the traction that LZO and Snappy
> have had, even though in many respects they are interchangeable in the
> general trade-off spectrum. The question is: what burden of proof is
> required to convince the project that Snappy does not have exorbitant
> patent issues, in proportion to the utility of having a compression
> scheme of this type integrated?

Another not-exactly-trivial requirement is to figure out how to not
break on-disk compatibility when installing an alternative compression
scheme.  In hindsight it might've been a good idea if pglz_compress had
wasted a little bit of space on some sort of version identifier ...
but it didn't.
        regards, tom lane


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