> 16 июня 2021 г., в 13:49, Heikki Linnakangas <hlinnaka@iki.fi> написал(а):
>
> Hmm, do we currently compress each block in a WAL record separately, for records that contain multiple full-page
images?That could make a big difference e.g. for GiST index build that WAL-logs 32 pages in each record. If it helps
thecompression, we should probably start WAL-logging b-tree index build in larger batches, too.
Here's PoC for this [0]. But benchmark results are HW-dependent.
Best regards, Andrey Borodin.
https://www.postgresql.org/message-id/flat/41822E78-48EE-41AE-A89B-3CB76FF53980%40yandex-team.ru
