From: | Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> |
---|---|
To: | Dilip Kumar <dilipbalaut(at)gmail(dot)com> |
Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru>, David Steele <david(at)pgmasters(dot)net>, Ildus Kurbangaliev <i(dot)kurbangaliev(at)gmail(dot)com>, Dmitry Dolgov <9erthalion6(at)gmail(dot)com>, PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
Subject: | Re: [HACKERS] Custom compression methods |
Date: | 2020-10-28 19:01:21 |
Message-ID: | 20201028190121.kj72ftoxyub4wsed@development |
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Lists: | pgsql-hackers |
On Wed, Oct 28, 2020 at 01:16:31PM +0530, Dilip Kumar wrote:
>>
>> ...
>>
>> I have added the next patch to support the compression options. I am
>> storing the compression options only for the latest compression
>> method. Basically, based on this design we would be able to support
>> the options which are used only for compressions. As of now, the
>> compression option infrastructure is added and the compression options
>> for inbuilt method pglz and the external method zlib are added. Next,
>> I will work on adding the options for the lz4 method.
>
>In the attached patch set I have also included the compression option
>support for lz4. As of now, I have only supported the acceleration
>for LZ4_compress_fast. There is also support for the dictionary-based
>compression but if we try to support that then we will need the
>dictionary for decompression also. Since we are only keeping the
>options for the current compression methods, we can not support
>dictionary-based options as of now.
>
OK, thanks. Do you have any other plans to improve this patch series? I
plan to do some testing and review, but if you're likely to post another
version soon then I'd wait a bit.
regards
--
Tomas Vondra http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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