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2022 Changelog
ClickHouse release v21.9.5.16-stable FIXME as compared to v21.9.4.35-stable
Improvement
- Backported in #29897: Added partitioned table prefix 'p' for the query for fetching replica identity index. #29828 (Shoh Jahon).
- Backported in #29943: Update zoneinfo files to 2021c. #29925 (Alexey Milovidov).
Bug Fix
- Backported in #29775: Allow using a materialized column as the sharding key in a distributed table even if
insert_allow_materialized_columns=0
:. #28637 (Vitaly Baranov). - Backported in #29126: Fix bug in
clickhouse-keeper-converter
which can lead to incorrect ZooKeeper log deserialization. #29071 (小路). - Backported in #29972: Fix shutdown of
AccessControlManager
. Now there can't be reloading of the configuration after AccessControlManager has been destroyed. This PR fixes the flaky test test_user_directories/test.py::test_relative_path. #29951 (Vitaly Baranov). - Backported in #30052: Fix releasing query ID and session ID at the end of query processing while handing gRPC call. This PR fixes flaky test test_grpc_protocol/test.py::test_session. #29954 (Vitaly Baranov).
Bug Fix (user-visible misbehaviour in official stable release)
- Backported in #29055: Fix invalid constant type conversion when nullable or lowcardinality primary key is used. #28636 (Amos Bird).
- Backported in #29107: Fix waiting for mutation with
mutations_sync=2
. #28889 (Azat Khuzhin). - Backported in #29815: Do not allow to reuse previous credentials in case of inter-server secret (Before INSERT via Buffer/Kafka to Distributed table with interserver secret configured for that cluster, may re-use previously set user for that connection). #29060 (Azat Khuzhin).
- Backported in #29399: Send normal
Database doesn't exist error
(UNKNOWN_DATABASE
) to the client (via TCP) instead ofAttempt to read after eof
(ATTEMPT_TO_READ_AFTER_EOF
). #29229 (Azat Khuzhin). - Backported in #29356: Fix possible
Table columns structure in ZooKeeper is different from local table structure
exception while recreating or creating new replicas ofReplicatedMergeTree
, when one of table columns have default expressions with case-insensitive functions. #29266 (Anton Popov). - Backported in #29451: Fix failed assertion in ReadBufferFromHDFS. Update libhdfs3 library to be able to run in tests in debug. Closes #29251. Closes #27814. #29276 (Kseniia Sumarokova).
- Backported in #29301: Fix connection timeouts (
send_timeout
/receive_timeout
). #29282 (Azat Khuzhin). - Backported in #29383: Remove window function
nth_value
as it is not memory-safe. This closes #29347. #29348 (Alexey Milovidov). - Backported in #29438: Fix replicated access storage not shutting down cleanly when misconfigured. #29388 (Kevin Michel).
- Backported in #29489: Fix Logical error
Cannot capture columns
in functions greatest/least. Closes #29334. #29454 (Kruglov Pavel). - Backported in #29536: Fix possible
Block structure mismatch
for subqueries with pushed-downHAVING
predicate. Fixes #29010. #29475 (Nikolai Kochetov). - Backported in #29592: In ODBC bridge add retries for error Invalid cursor state. It is a retriable error. Closes #29473. #29518 (Kseniia Sumarokova).
- Backported in #29572: Fix bug in check
pathStartsWith
becuase there was bug with the usage ofstd::mismatch
:The behavior is undefined if the second range is shorter than the first range.
. #29531 (Kseniia Sumarokova). - Backported in #29630: Fix rare segfault in
ALTER MODIFY
query when using incorrect table identifier inDEFAULT
expression likex.y.z...
Fixes #29184. #29573 (alesapin). - Backported in #29658: Fix JIT expression compilation with aliases and short-circuit expression evaluation. Closes #29403. #29574 (Maksim Kita).
- Backported in #29751: Condition in filter predicate could be lost after push-down optimisation. #29625 (Nikolai Kochetov).
- Backported in #29849: Fix concurrent access to
LowCardinality
duringGROUP BY
(leads to SIGSEGV). #29782 (Azat Khuzhin). - Backported in #29909: Fix bad cast in
ATTACH TABLE ... FROM 'path'
query when non-string literal is used instead of path. It may lead to reading of uninitialized memory. #29790 (Alexey Milovidov). - Backported in #29865: Avoid
Timeout exceeded: elapsed 18446744073.709553 seconds
error that might happen in extremely rare cases, presumably due to some bug in kernel. Fixes #29154. #29811 (Alexander Tokmakov). - Backported in #30024: MaterializedMySQL: Fix an issue where if the connection to MySQL was lost, only parts of a transaction could be processed. #29837 (Håvard Kvålen).
- Backported in #29878: Fix system tables recreation check (fails to detect changes in enum values). #29857 (Azat Khuzhin).
- Backported in #30057: Fix potential resource leak of the concurrent query limit of merge tree tables introduced in https://github.com/ClickHouse/ClickHouse/pull/19544 . #29879 (Amos Bird).
- Backported in #30204: Fix data-race between
LogSink::writeMarks()
andLogSource
inStorageLog
. #29946 (Azat Khuzhin). - Backported in #30209: Fix possible data-race between
FileChecker
andStorageLog
/StorageStripeLog
. #29959 (Azat Khuzhin). - Backported in #30070: Fix crash of sample by
tuple()
, closes #30004. #30016 (flynn). - Backported in #30128: Dropped
Memory
database might reappear after server restart, it's fixed (#29795). Also addedforce_remove_data_recursively_on_drop
setting as a workaround forDirectory not empty
error when droppingOrdinary
database (because it's not possible to remove data leftovers manually in cloud environment). #30054 (Alexander Tokmakov). - Backported in #30262: FlatDictionary, HashedDictionary fix bytes_allocated calculation for nullable attributes. #30238 (Maksim Kita).
- Backported in #30306: Fix crash with shortcircuit and lowcardinality in multiIf. #30243 (Raúl Marín).
- Backported in #30290: Fix ComplexKeyHashedDictionary, ComplexKeySparseHashedDictionary parsing
preallocate
option from layout config. #30246 (Maksim Kita).
NO CL CATEGORY
- Avoid deadlocks when reading and writting on JOIN Engine tables at the same time. #30185 (Raúl Marín).
NOT FOR CHANGELOG / INSIGNIFICANT
- Maybe fix livelock in ZooKeeper client #28195 (Alexander Tokmakov).
- May be fix s3 tests #29762 (Kseniia Sumarokova).
- Update BoringSSL #29998 (Filatenkov Artur).