Sema Checherinda

Delete parts by replacing them with empty parts

4

The issue: https://github.com/ClickHouse/ClickHouse/issues/33457 ### Changelog category (leave one): - Improvement ### Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md): This PR changes how followed queries...

Session pool

1

https://github.com/ClickHouse/ClickHouse/issues/50217 This PR makes http/https connections reusable for all uses cases. the main changes here are: ### src/Common/HostResolvePool.{h.cpp} That class resolves host into multiply addresses Features: - balance address usage....

S3: reduce retires time for queries, increase retries count for backups

1

### Changelog category (leave one): - Improvement ### Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md): S3. reduce retires time for queries, increase retries count...

insertion deduplication on retries for materialised views

5

Implements ideas from https://github.com/ClickHouse/ClickHouse/issues/60008 Docs in progress https://github.com/ClickHouse/clickhouse-docs/pull/2394 I improved deduplication by enhancing annotation of chunks on a pipeline level. Now, each chunk could have several attached structures with base...

tests for qps_limit_exceeded

2

### Changelog category (leave one): - Improvement ### Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md): Test that non standard error code `QpsLimitExceeded` is supported...

Revert "Temporarily remove deduplicating inserts on retries"

1

Reverts ClickHouse/clickhouse-docs#2500 Original PR https://github.com/ClickHouse/clickhouse-docs/pull/2394 The code has been committed, so the doc has to be restored. https://github.com/ClickHouse/ClickHouse/pull/66144

merge tree sink cancel delayed_chunk

8

Motivation and context are here https://github.com/ClickHouse/ClickHouse/pull/66144#issuecomment-2217905961 ### Changelog category (leave one): - Improvement ### Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md): [Replicated]MergeTreeSink has to...

rework usage of custom table's disks

1

Description and motivations https://github.com/ClickHouse/ClickHouse/issues/67825 ### Changelog category (leave one): - Improvement ### Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md): rework usage of custom table's...

`02443_detach_attach_partition` is flaky

7

[Stats](https://play.clickhouse.com/play?user=play#c2VsZWN0IAp0b1N0YXJ0T2ZIb3VyKGNoZWNrX3N0YXJ0X3RpbWUpIGFzIGQsCmNvdW50KCksICBncm91cFVuaXFBcnJheShwdWxsX3JlcXVlc3RfbnVtYmVyKSwgIGFueShyZXBvcnRfdXJsKQpmcm9tIGNoZWNrcyB3aGVyZSAnMjAyMi0wNi0wMScgPD0gY2hlY2tfc3RhcnRfdGltZSBhbmQgdGVzdF9uYW1lIGxpa2UgJyUwMjQ0M19kZXRhY2hfYXR0YWNoX3BhcnRpdGlvbiUnIGFuZCB0ZXN0X3N0YXR1cyBpbiAoJ0ZBSUwnLCAnRkxBS1knKSBncm91cCBieSBkIG9yZGVyIGJ5IGQgZGVzYw==)

Usage of internal table's disks

1

Clickhouse could create a disk from a description inside a `create table` definition. It is a good powerful feature. It looks like this: ``` create table test (a Int32) engine...