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2024 Changelog
ClickHouse release v24.4.4.107-stable (af0ed6b197
) FIXME as compared to v24.4.3.25-stable (a915dd4eda
)
Improvement
- Backported in #65884: Always start Keeper with sufficient amount of threads in global thread pool. #64444 (Duc Canh Le).
- Backported in #65303: Returned back the behaviour of how ClickHouse works and interprets Tuples in CSV format. This change effectively reverts https://github.com/ClickHouse/ClickHouse/pull/60994 and makes it available only under a few settings:
output_format_csv_serialize_tuple_into_separate_columns
,input_format_csv_deserialize_separate_columns_into_tuple
andinput_format_csv_try_infer_strings_from_quoted_tuples
. #65170 (Nikita Mikhaylov). - Backported in #65894: Respect cgroup CPU limit in Keeper. #65819 (Antonio Andelic).
Critical Bug Fix (crash, LOGICAL_ERROR, data loss, RBAC)
- Backported in #65372: Fix a bug in ClickHouse Keeper that causes digest mismatch during closing session. #65198 (Aleksei Filatov).
- Backported in #66883: Fix unexpeced size of low cardinality column in function calls. #65298 (Raúl Marín).
- Backported in #65435: Forbid
QUALIFY
clause in the old analyzer. The old analyzer ignoredQUALIFY
, so it could lead to unexpected data removal in mutations. #65356 (Dmitry Novik). - Backported in #65448: Use correct memory alignment for Distinct combinator. Previously, crash could happen because of invalid memory allocation when the combinator was used. #65379 (Antonio Andelic).
- Backported in #65710: Fix crash in maxIntersections. #65689 (Raúl Marín).
- Backported in #66689: Fix the VALID UNTIL clause in the user definition resetting after a restart. Closes #66405. #66409 (Nikolay Degterinsky).
Bug Fix (user-visible misbehavior in an official stable release)
- Backported in #65353: Fix possible abort on uncaught exception in ~WriteBufferFromFileDescriptor in StatusFile. #64206 (Kruglov Pavel).
- Backported in #65060: Fix the
Expression nodes list expected 1 projection names
andUnknown expression or identifier
errors for queries with aliases toGLOBAL IN.
. #64517 (Nikolai Kochetov). - Backported in #65329: Fix the crash loop when restoring from backup is blocked by creating an MV with a definer that hasn't been restored yet. #64595 (pufit).
- Backported in #64833: Fix bug which could lead to non-working TTLs with expressions. #64694 (alesapin).
- Backported in #65086: Fix removing the
WHERE
andPREWHERE
expressions, which are always true (for the new analyzer). #64695 (Nikolai Kochetov). - Backported in #65540: Fix crash for
ALTER TABLE ... ON CLUSTER ... MODIFY SQL SECURITY
. #64957 (pufit). - Backported in #65578: Fix crash on destroying AccessControl: add explicit shutdown. #64993 (Vitaly Baranov).
- Backported in #65161: Fix pushing arithmetic operations out of aggregation. In the new analyzer, optimization was applied only once. #65104 (Dmitry Novik).
- Backported in #65616: Fix aggregate function name rewriting in the new analyzer. #65110 (Dmitry Novik).
- Backported in #65730: Eliminate injective function in argument of functions
uniq*
recursively. This used to work correctly but was broken in the new analyzer. #65140 (Duc Canh Le). - Backported in #65668: Disable
non-intersecting-parts
optimization for queries withFINAL
in case ofread-in-order
optimization was enabled. This could lead to an incorrect query result. As a workaround, disabledo_not_merge_across_partitions_select_final
andsplit_parts_ranges_into_intersecting_and_non_intersecting_final
before this fix is merged. #65505 (Nikolai Kochetov). - Backported in #65786: Fixed bug in MergeJoin. Column in sparse serialisation might be treated as a column of its nested type though the required conversion wasn't performed. #65632 (Nikita Taranov).
- Backported in #65810: Fix invalid exceptions in function
parseDateTime
with%F
and%D
placeholders. #65768 (Antonio Andelic). - Backported in #65931: For queries that read from
PostgreSQL
, cancel the internalPostgreSQL
query if the ClickHouse query is finished. Otherwise,ClickHouse
query cannot be canceled until the internalPostgreSQL
query is finished. #65771 (Maksim Kita). - Backported in #65826: Fix a bug in short circuit logic when old analyzer and dictGetOrDefault is used. #65802 (jsc0218).
- Backported in #66299: Better handling of join conditions involving
IS NULL
checks (for exampleON (a = b AND (a IS NOT NULL) AND (b IS NOT NULL) ) OR ( (a IS NULL) AND (b IS NULL) )
is rewritten toON a <=> b
), fix incorrect optimization when condition other thenIS NULL
are present. #65835 (vdimir). - Backported in #66326: Add missing settings
input_format_csv_skip_first_lines/input_format_tsv_skip_first_lines/input_format_csv_try_infer_numbers_from_strings/input_format_csv_try_infer_strings_from_quoted_tuples
in schema inference cache because they can change the resulting schema. It prevents from incorrect result of schema inference with these settings changed. #65980 (Kruglov Pavel). - Backported in #66153: Fixed buffer overflow bug in
unbin
/unhex
implementation. #66106 (Nikita Taranov). - Backported in #66459: Fixed a bug in ZooKeeper client: a session could get stuck in unusable state after receiving a hardware error from ZooKeeper. For example, this might happen due to "soft memory limit" in ClickHouse Keeper. #66140 (Alexander Tokmakov).
- Backported in #66224: Fix issue in SumIfToCountIfVisitor and signed integers. #66146 (Raúl Marín).
- Backported in #66267: Don't throw
TIMEOUT_EXCEEDED
fornone_only_active
mode ofdistributed_ddl_output_mode
. #66218 (Alexander Tokmakov). - Backported in #66678: Fix handling limit for
system.numbers_mt
when no index can be used. #66231 (János Benjamin Antal). - Backported in #66603: Fixed how the ClickHouse server detects the maximum number of usable CPU cores as specified by cgroups v2 if the server runs in a container such as Docker. In more detail, containers often run their process in the root cgroup which has an empty name. In that case, ClickHouse ignored the CPU limits set by cgroups v2. #66237 (filimonov).
- Backported in #66358: Fix the
Not-ready set
error when a subquery withIN
is used in the constraint. #66261 (Nikolai Kochetov). - Backported in #66971: Fix
Column identifier is already registered
error withgroup_by_use_nulls=true
and new analyzer. #66400 (Nikolai Kochetov). - Backported in #66968: Fix
Cannot find column
error for queries with constant expression inGROUP BY
key and new analyzer enabled. #66433 (Nikolai Kochetov). - Backported in #66719: Correctly track memory for
Allocator::realloc
. #66548 (Antonio Andelic). - Backported in #66950: Fix an invalid result for queries with
WINDOW
. This could happen whenPARTITION
columns have sparse serialization and window functions are executed in parallel. #66579 (Nikolai Kochetov). - Backported in #66947: Fix
Method getResultType is not supported for QUERY query node
error when scalar subquery was used as the first argument of IN (with new analyzer). #66655 (Nikolai Kochetov). - Backported in #67195: TRUNCATE DATABASE used to stop replication as if it was a DROP DATABASE query, it's fixed. #67129 (Alexander Tokmakov).
- Backported in #67377: Fix error
Cannot convert column because it is non constant in source stream but must be constant in result.
for a query that reads from theMerge
table over theDistriburted
table with one shard. #67146 (Nikolai Kochetov). - Backported in #67240: This closes #67156. This closes #66447. The bug was introduced in https://github.com/ClickHouse/ClickHouse/pull/62907. #67178 (Maksim Kita).
NOT FOR CHANGELOG / INSIGNIFICANT
- Backported in #65410: Re-enable OpenSSL session caching. #65111 (Robert Schulze).
- Backported in #65903: Fix bug with session closing in Keeper. #65735 (Antonio Andelic).
- Backported in #66385: Disable broken cases from 02911_join_on_nullsafe_optimization. #66310 (vdimir).
- Backported in #66424: Ignore subquery for IN in DDLLoadingDependencyVisitor. #66395 (Nikolai Kochetov).
- Backported in #66542: Add additional log masking in CI. #66523 (Raúl Marín).
- Backported in #66857: Fix data race in S3::ClientCache. #66644 (Konstantin Morozov).
- Backported in #66873: Support one more case in JOIN ON ... IS NULL. #66725 (vdimir).
- Backported in #67057: Increase asio pool size in case the server is tiny. #66761 (alesapin).
- Backported in #66944: Small fix in realloc memory tracking. #66820 (Antonio Andelic).
- Backported in #67250: Followup #66725. #66869 (vdimir).
- Backported in #67410: CI: Fix build results for release branches. #67402 (Max K.).