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Re: [HACKERS] Custom compression methods

Ildus Kurbangaliev <i.kurbangaliev@postgrespro.ru>

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From: Ildus Kurbangaliev <i.kurbangaliev@postgrespro.ru>
To: Dmitry Dolgov <9erthalion6@gmail.com>
Cc: Alexander Korotkov <a.korotkov@postgrespro.ru>, PostgreSQL Developers <pgsql-hackers@lists.postgresql.org>
Date: 2018-12-03T12:43:32Z
Lists: pgsql-hackers

Attachments

On Fri, 30 Nov 2018 15:08:39 +0100
Dmitry Dolgov <9erthalion6@gmail.com> wrote:

> > On Thu, Sep 6, 2018 at 5:27 PM Ildus Kurbangaliev
> > <i.kurbangaliev@postgrespro.ru> wrote:
> >
> > Hi, attached latest set of patches. Rebased and fixed pg_upgrade
> > errors related with zlib support.  
> 
> Thank you for working on this patch, I believe the ideas mentioned in
> this thread are quite important for Postgres improvement.
> Unfortunately, patch has some conflicts now, could you post a rebased
> version one more time?

Hi, here is a rebased version. I hope it will get some review :)

-- 
---
Ildus Kurbangaliev
Postgres Professional: http://www.postgrespro.com
Russian Postgres Company

Commits

  1. docs: Update TOAST storage docs for configurable compression.

  2. Further tweaking of pg_dump's handling of default_toast_compression.

  3. Fix interaction of TOAST compression with expression indexes.

  4. Tidy up more loose ends related to configurable TOAST compression.

  5. Short-circuit slice requests that are for more than the object's size.

  6. Mostly-cosmetic adjustments of TOAST-related macros.

  7. Remove useless configure probe for <lz4/lz4.h>.

  8. Error on invalid TOAST compression in CREATE or ALTER TABLE.

  9. docs: Fix omissions related to configurable TOAST compression.

  10. More code cleanup for configurable TOAST compression.

  11. Bring configure support for LZ4 up to snuff.

  12. Make compression.sql regression test independent of default.

  13. Use valid compression method in brin_form_tuple

  14. Fix up pg_dump's handling of per-attribute compression options.

  15. Allow configurable LZ4 TOAST compression.

  16. Fix inconsistencies in the code

  17. Mostly-cosmetic improvements in memory chunk header alignment coding.

  18. Allow numeric to use a more compact, 2-byte header in many cases.