Search results

getFailPoints uses fiu_fail which consumes FIU_ONETIME failpoints, breaking once and pauseable_once types on every query

Status: Open.

#103403 In ClickHouse/ClickHouse;

· clickgapai opened on Apr 22, 2026

SYSTEM RELOAD DELTA KERNEL TRACING missing checkAccess call bypasses readonly mode

Status: Open.

#103400 In ClickHouse/ClickHouse;

· clickgapai opened on Apr 22, 2026

Upgrade from 25.x to 26.x ends with CORRUPTED_DATA

questionQuestion?Question?

Status: Open.

#103398 In ClickHouse/ClickHouse;

· knuurr opened on Apr 22, 2026

ExpressionsStack::push misclassifies window functions as aggregate functions, blocking nullable conversion for group_by_use_nulls

Status: Open.

#103393 In ClickHouse/ClickHouse;

· clickgapai opened on Apr 22, 2026

Clickhouse fails to parse unix micro and nano with best effort

potential bugTo be reviewed by developers and confirmed/rejected.To be reviewed by developers and confirmed/rejected.

Status: Open.

#103391 In ClickHouse/ClickHouse;

· telperions opened on Apr 22, 2026

get_effective_scale returns nullopt for Decimal types, causing JIT-compiled multiIf to skip scale conversion

Status: Open.

#103390 In ClickHouse/ClickHouse;

· clickgapai opened on Apr 22, 2026

Weird "if" behavior when selecting from system.merges

potential bugTo be reviewed by developers and confirmed/rejected.To be reviewed by developers and confirmed/rejected.

Status: Open.

#103368 In ClickHouse/ClickHouse;

· spinojara opened on Apr 22, 2026

Enable TCP keepalive on accepted native protocol sockets in TCPHandler

Status: Open.

#103336 In ClickHouse/ClickHouse;

· jyberg opened on Apr 22, 2026

max_rows_to_transfer doesn't work with new analyzer enabled

unexpected behaviourResult is unexpected, but not entirely wrong at the same time.Result is unexpected, but not entirely wrong at the same time.

Status: Open.

#103333 In ClickHouse/ClickHouse;

· zhangjmruc opened on Apr 22, 2026

s3_truncate_on_insert not working with hive partitioned S3 table engine

potential bugTo be reviewed by developers and confirmed/rejected.To be reviewed by developers and confirmed/rejected.

Status: Open.

#103332 In ClickHouse/ClickHouse;

· piyushk96 opened on Apr 22, 2026

Regression: base_backup setting now must have literal S3 URI

backward compatibility

Status: Open.

#103324 In ClickHouse/ClickHouse;

· beanow-at-crabnebula opened on Apr 22, 2026

Flaky test: 04078_native_protocol_input_validation

Status: Open.

#103321 In ClickHouse/ClickHouse;

· zoomxi opened on Apr 22, 2026