* Enable parallel insert of materialized view when its target table supports. [#10052](https://github.com/ClickHouse/ClickHouse/pull/10052)([vxider](https://github.com/Vxider))
* Improved performance of index analysis with monotonic functions. [#9607](https://github.com/ClickHouse/ClickHouse/pull/9607)[#10026](https://github.com/ClickHouse/ClickHouse/pull/10026) ([Anton Popov](https://github.com/CurtizJ))
* Using SSE2 or SSE4.2 SIMD intrinsics to speed up tokenization in bloom filters. [#9968](https://github.com/ClickHouse/ClickHouse/pull/9968)([Vasily Nemkov](https://github.com/Enmk))
* Optimize Volnitsky searcher by inlining, should be about 5-10% search improvement for queries with many needles or many similar bigrams [#4862](https://github.com/ClickHouse/ClickHouse/pull/4862)([Danila Kutenin](https://github.com/danlark1))
* Now `PREWHERE` should be at least as efficient as where. As a result, any viable predicates can be moved into `PREWHERE` expression without fancy heuristic [#7769](https://github.com/ClickHouse/ClickHouse/pull/7769)([Amos Bird](https://github.com/amosbird))
* Enable SSO for IN operator. Improvements varies from 4% to **257%**. [#7782](https://github.com/ClickHouse/ClickHouse/pull/7782)([Amos Bird](https://github.com/amosbird))
* Improved performance of queries with explicitly defined sets at right side of `IN` operator. This fixes performance regression in version 20.3. [#9740](https://github.com/ClickHouse/ClickHouse/pull/9740)([Anton Popov](https://github.com/CurtizJ))
* Now clickhouse-copier splits each partition in number of pieces and copies them independently. [#9075](https://github.com/ClickHouse/ClickHouse/pull/9075)([Nikita Mikhaylov](https://github.com/nikitamikhaylov))
* Adding more aggregation methods. For example TPC-H query 1 will now pick `FixedHashMap<UInt16, AggregateDataPtr>` and gets 25% performance gain [#9829](https://github.com/ClickHouse/ClickHouse/pull/9829)([Amos Bird](https://github.com/amosbird))
