Replace BackgroundProcessingPool with SchedulePool task and ThreadPool.

Doc. BloomF index does not support like. Tokenbf_v1 supports like

Changelog for 20.10

fix: fix typo in array functions documentation

Fix "format-changelog.py" for Python3

bloom does not support like

tokenbf_v1 supports like

Improve Arcadia

BloomFilter index added big integers and UUID support

fix bug in minMap and maxMap with zero values

Hrissan/dev instructions gcc 9 to gcc 10

Add farmFingerprint64 function

Fix possible modification of global context in DDLWorker

Fix flaky tests after "max_memory_usage_for_user"

Fix 'max_parallel_replicas' without sampling.

Add a test for #16231

Bump mkdocs-macros-plugin from 0.4.17 to 0.4.20 in /docs/tools

Incorrect behaviour of SELECT WITH TOTALS

Bumps [mkdocs-macros-plugin](https://github.com/fralau/mkdocs_macros_plugin) from 0.4.17 to 0.4.20.
- [Release notes](https://github.com/fralau/mkdocs_macros_plugin/releases)
- [Commits](https://github.com/fralau/mkdocs_macros_plugin/commits/v0.4.20)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>

* Fix test "max_memory_usage_for_user"

* Update test

* Update annoying boilerplate

* Support symlinks in tarballs

* Fix Fuzzer

* Remove "secondary" user

* Remove "secondary" user

Minor modification: less templates

more tests for CTE #16575

Fix inconsistent code around H3

Remove T-Tests

Optimize -OrNull and -OrDefault aggregate functions by providing specializations

* Edit and translate to Russian.

* v2 27.10

* other-functions

* Update docs/ru/sql-reference/functions/other-functions.md
Co-authored-by: NBayoNet <da-daos@yandex.ru>

* Update docs/ru/sql-reference/functions/other-functions.md
Co-authored-by: NBayoNet <da-daos@yandex.ru>
Co-authored-by: NDaria Mozhaeva <dmozhaeva@yandex-team.ru>
Co-authored-by: NBayoNet <da-daos@yandex.ru>

Add a test for #8772

Remove some garbage from docs

Remove obsolete code from JOIN