Horton

Re: Yet another fast GiST build

x4mmm@yandex-team.ru

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From: Andrey Borodin <x4mmm@yandex-team.ru>
To: Alexander Korotkov <a.korotkov@postgrespro.ru>
Cc: Darafei Komяpa Praliaskouski <me@komzpa.net>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2019-09-08T08:54:35Z
Lists: pgsql-hackers

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> 1 сент. 2019 г., в 15:53, Andrey Borodin <x4mmm@yandex-team.ru> написал(а):
> 
> 
> <v2-0001-Add-sort-support-for-point-gist_point_sortsupport.patch><v2-0002-Implement-GiST-build-using-sort-support.patch>

Here's V3 of the patch set.
Changes:
1. Added some documentation of new sort support routines
2. Fixed bug with dirty pages

I did not add sort support procs to built-in boxes, circles and polys, since it may be not optimal index for them. However, for points Z-order is quite good as a default.

Tests only pass with fixes for GiST KNN from Alexander in other thread.

Thanks!

Best regards, Andrey Borodin.

Commits

  1. Add sortsupport for gist_btree opclasses, for faster index builds.

  2. pageinspect: Fix relcache leak in gist_page_items().

  3. Fix test failure with wal_level=minimal.

  4. Enhance nbtree index tuple deletion.

  5. Fix portability issues in the new gist pageinspect test.

  6. Add functions to 'pageinspect' to inspect GiST indexes.

  7. Fix missing validation for the new GiST sortsupport functions.

  8. Fix compilation warning in xlog.c

  9. Set right-links during sorted GiST index build.

  10. Fix checksum calculation in the new sorting GiST build.

  11. Add support for building GiST index by sorting.