Anton Popov

Segfault without stacktrace in Stress test

8

1. https://s3.amazonaws.com/clickhouse-test-reports/0/f9faadcfeef67ddb6528994f9db80766b5012fdc/stress_test__thread__actions_.html 2. https://s3.amazonaws.com/clickhouse-test-reports/0/dd2e085ae565553cc15c7e1647d0c0fee589d755/stress_test__thread__actions_.html

### Changelog category (leave one): - Bug Fix (user-visible misbehavior in official stable or prestable release) ### Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):...

Fix possible endless loop while polling curl socket

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In case of high frequency of received signals (more than once per second) the field `now` will never be updated and it can lead to exceeding of timeout or endless...

Refactoring near azure blob storage

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### Changelog category (leave one): - Not for changelog (changelog entry is not required) Modify your CI run **NOTE:** If your merge the PR with modified CI you **MUST KNOW**...

### Changelog category (leave one): - New Feature ### Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md): Added a support of sparse serialization (controlled by...

Slightly better setting `force_optimize_projection_name`

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### Changelog category (leave one): - Not for changelog (changelog entry is not required) Modify your CI run **NOTE:** If your merge the PR with modified CI you **MUST KNOW**...

Randomization of tests with `DETACH`/`ATTACH` table

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### Changelog category (leave one): - Not for changelog (changelog entry is not required) Randomly execute `DETACH`/`ATTACH` queries for all tables that are used in query from test before its...

**Describe the unexpected behaviour** All files created by storage with setting `engine_file_allow_create_multiple_files` except the first one are not visible by the storage after restart. **How to reproduce** ```sql DROP TABLE...

Fuzz more parts of storage

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### Changelog category (leave one): - Not for changelog (changelog entry is not required) Added fuzzing and random addition of secondary indices, projections and default expression of columns.

Enable `optimize_functions_to_subcolumns` by default

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### Changelog category (leave one): - Performance Improvement ### Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md): Setting `optimize_functions_to_subcolumns` enabled by default. Fixes #57326.