Altinity Contributions to Open Source ClickHouse® Project

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We’ve spent years in the trenches with ClickHouse—writing code, fixing bugs, and pushing performance further since 2018. Along the way, we’ve contributed over 695 PRs upstream, making Altinity the project’s second-largest contributor.

Some of our most impactful contributions include:

This page is our changelog to the community: features we’ve built, problems we’ve solved, and upgrades that help everyone who relies on ClickHouse. (PS: It does not include documentation changes.)

2025 (Ongoing)

  • Few fixes to object storage hive reads & writes 85538 by @arthurpassos
  • Add support for macro expansion in remote_fs_zero_copy_zookeeper_path 85437 by @mkmkme
  • Rendezvous hashing filesystem cache in (s3/etc)Cluster functions 82511 by @ianton-ru
  • Limit disks to search for orphaned parts 84710 by @ilejn
  • Unify parameter names in ODBC and JDBC 83410 by @zvonand
  • Bug fix + changes in extractKeyValuePairs parsing logic 80657 by @arthurpassos
  • Fix match(col, ‘^…’) index analysis with escaped metacharacters to avoid wrong results and crashes 79969 by @filimonov
  • Ignore parse error in system.distributed_ddl_queue 79369 by @ilejn
  • Add support for Date32, DateTime64 in TTL 80710 by @zvonand
  • fix description of distinct step after union lift up optimization 80330 by @UnamedRus
  • Write to Merge storage 77484 by @ianton-ru
  • Add mapContainsValuesLike/mapContainsValues/mapExtractValuesLike functions 78171 by @UnamedRus
  • Resolve macros for autodiscovery clusters 79696 by @ianton-ru
  • Split kafka tests (1) 79700 by @ilejn
  • Fix LogSeriesLimiter cleanup logic to run only once per interval 79864 by @filimonov
  • Embed proxy configuration in some HTTP buffers with the help of builders 77693 by @arthurpassos
  • Improve performance of hive path parsing by using extractKeyValuePairs instead of regex 79067 by @arthurpassos
  • Split kafka tests (1) 78624 by @ilejn
  • Fix reference in lambda callback 78174 by @ianton-ru
  • Allow empty value on hive partitioning 78816 by @arthurpassos
  • Async insert memory preallocation to improve performance 74945 by @ilejn
  • system.kafka_consumers improvements 77700 by @ilejn
  • Fix incorrect S3 uri parsing when key is not specified on path style 78185 by @arthurpassos
  • Fix block device time metrics calculation 78211 by @filimonov
  • Add support for hasAll function in token_bf index 77662 by @UnamedRus
  • cppkafka minor change 77624 by @filimonov
  • librdkafka 2.8 76621 by @filimonov
  • Autodiscovery dynamic clusters 76001 by @ianton-ru
  • Better pause / unpause in intergration tests 76711 by @filimonov
  • Update index.md 75952 by @filimonov
  • Merge parquet bloom filter and min/max evaluation 71383 by @arthurpassos
  • Reintroduce respect ttl_only_drop_parts on materialize ttl, #65488 72751 by @zvonand
  • Set parquet compression level only if compression codec supports it 74659 by @arthurpassos
  • Compression level for parquet output format 73651 by @arthurpassos
  • Fix UBSan error in ParquetDataBuffer 74534 by @arthurpassos
  • Support parquet integer logical types on native reader 72105 by @arthurpassos
  • add sequenceMatchEvents aggregate function 72349 by @UnamedRus
  • Fix issue #66112 74128 by @ianton-ru
  • Fix 03210_variant_with_aggregate_function_type test 74012 by @ianton-ru

2024

  • [Experiment] what if reorder compare of columns in Merge 63780 by @UnamedRus
  • Fix if condition in #63151 73504 by @zvonand
  • Make 01086_window_view_cleanup more stable 72232 by @ilejn
  • Fix #72756 (exception in RemoteQueryExecutor when user does not exist locally) 72759 by @zvonand
  • Respect prefer_locahost_replica in parallel_distributed_insert_select 72190 by @filimonov
  • Auxiliary autodiscovery 71911 by @ianton-ru
  • Passing external user roles from query originator to other nodes 70332 by @zvonand
  • Fix flaky test_drop_complex_columns 71504 by @ilejn
  • Boolean support for parquet native reader 71055 by @arthurpassos
  • Allow each authentication method to have its own expiration date, remove from user entity. 70090 by @arthurpassos
  • make numactl respect EPERM error, when get_mempolicy is is restricted by seccomp 70900 by @filimonov
  • add timeouts for retry loops in test_storage_rabbitmq 70510 by @filimonov
  • Support for Parquet page V2 on native reader 70807 by @arthurpassos
  • Add parquet bloom filters support 62966 by @arthurpassos
  • Thread pool: move thread creation out of lock 68694 by @filimonov
  • fix Kafka test 70352 by @filimonov
  • Maybe fix RabbitMQ 70336 by @filimonov
  • Add getSettingOrDefault() function 69917 by @shiyer7474
  • Fix REPLACE PARTITION waiting for mutations/merges on unrelated partitions 59138 by @Enmk
  • Implement missing decimal cases for zeroField function by casting 0 to proper types 69978 by @arthurpassos
  • alpine docker images – use ubuntu 22.04 as glibc donor 69033 by @filimonov
  • Read only necessary columns & respect ttl_only_drop_parts on materialize ttl 65488 by @zvonand
  • Some fixes for LDAP 68355 by @zvonand
  • Multi auth methods 65277 by @arthurpassos
  • Do not use docker pause for Kerberos KDC container in integration tests 69136 by @ilejn
  • Fix test_role & test_keeper_s3_snapshot integration tests 69013 by @shiyer7474
  • Thread pool metrics 68674 by @filimonov
  • Fix subnet in docker_compose_net.yml 69121 by @ilejn
  • Fix small value DateTime64 constant folding in nested subquery for remote 68323 by @shiyer7474
  • Building aarch64 builds with ‘-no-pie’ to allow better introspection 67916 by @filimonov
  • Add ** to hdfs docs, add test for ** in hdfs 67064 by @zvonand
  • Even better healthcheck for ldap 67667 by @zvonand
  • Fix serialization of parameterized view parameters 67654 by @shiyer7474
  • Skip parallel for test_storage_kerberized_kafka 67349 by @zvonand
  • [CI fest] Try to fix test_broken_projections/test.py::test_broken_ignored_replicated 66915 by @zvonand
  • Fix detection of number of CPUs in containers 66237 by @filimonov
  • Remove host regexp concurrent integration test 66233 by @arthurpassos
  • Minor: replaced expression with LEGACY_MAX_LEVEL 61268 by @Enmk
  • Build failure if ENABLE_AWS_S3 is OFF fixed 66335 by @ilejn
  • Try to make test_ldap_external_user_directory less flaky 65794 by @zvonand
  • Add no_proxy support 63314 by @arthurpassos
  • Add _time virtual column to file alike storages 64947 by @ilejn
  • Several minor fixes to proxy support in ClickHouse 63427 by @arthurpassos
  • Remove unused CaresPTRResolver::cancel_requests method 63754 by @arthurpassos
  • Improve S3 glob performance 62120 by @zvonand
  • Build kererberized_hadoop image by downloading commons-daemon via https 62886 by @ilejn
  • Do not allow table to be attached if there already is an active replica path 61876 by @arthurpassos
  • Add support for S3 access through aws private link interface #62208 by @arthurpassos
  • Fix incorrect CI error message 62139 by @arthurpassos
  • Crash in Engine Merge if Row Policy does not have expression 61971 by @ilejn
  • Update storing-data.md 62094 by @filimonov
  • Reset part level upon attach from disk on MergeTree 61536 by @arthurpassos
  • update cppkafka to v0.4.1 61119 by @ilejn
  • Fix typo 61540 by @arthurpassos
  • Add mode fot topK/topKWeighed function to also include count/error statistics 54508 by @UnamedRus
  • Add test that validates attach partition fails if structure differs because of materialized column 60418 by @arthurpassos
  • Stateless test to validate projections work after attach 60415 by @arthurpassos
  • Allow to define volume_priority in storage_configuration 58533 by @zvonand
  • Revert revert attach partition PR 59122 by @arthurpassos
  • Update rename.md 59017 by @filimonov
  • Allow to attach partition from table with different partition expression when destination partition expression doesn’t re-partition 39507 by @arthurpassos
  • Fixed potential exception due to stale profile UUID 57263 by @Enmk
  • Edit docs for toWeek() 58452 by @zvonand

2023

  • Fix accurateCastOrNull for out-of-range DateTime 58139 by @zvonand
  • Try to fix memory leak in StorageHDFS 57860 by @zvonand
  • Fix ThreadSanitizer data race in librdkafka 57791 by @ilejn
  • Introduce fileCluster table function 56868 by @zvonand
  • Engine Merge obeys row policy 50209 by @ilejn
  • Sign all aws headers 57001 by @arthurpassos
  • Add transition from reading key to reading quoted key when double quotes are found 56423 by @arthurpassos
  • Performance enhancement for File, HDFS globs 56141 by @zvonand
  • Add ClickHouse setting to disable tunneling for HTTPS requests over HTTP proxy 55033 by @arthurpassos
  • add runOptimize call in bitmap write method( resubmit of #52842) 55044 by @UnamedRus
  • Introduce setting date_time_overflow_behavior to control the overflow behavior when converting to Date / Date32 / DateTime / DateTime64 55696 by @zvonand
  • Improve parsing DateTime64 from timestamp represented as string 55146 by @zvonand
  • Disable logic max_threads=max_distributed_connections when async_socket_for_remote=1 53504 by @filimonov
  • Properly split remote proxy http https 55430 by @arthurpassos
  • Add option to set env variables for a single node in integration tests 55208 by @arthurpassos
  • Add sub-second precision to formatReadableTimeDelta 54250 by @zvonand
  • Refactor and simplify multi-directory globs 54863 by @zvonand
  • Fix directory permissions for multi-directory globs. Follow-up #50559 52839 by @zvonand
  • Account for monotonically increasing offsets across multiple batches on arrow-CH conversion 54370 by @arthurpassos
  • add runOptimize call in bitmap write method 52842 by @UnamedRus
  • Lower the number of iterations in test_host_regexp_multiple_ptr_records_concurrent 54307 by @arthurpassos
  • Minor clarifications to the OPTIMIZE ... DEDUPLICATE docs 54257 by @Enmk
  • Fix flaky test_s3_storage_conf_proxy 54191 by @arthurpassos
  • system.kafka_consumers exception info improvements 53766 by @ilejn
  • Try to fix bug with NULL::LowCardinality(Nullable(…)) NOT IN 53706 by @zvonand
  • Add global proxy setting 51749 by @arthurpassos
  • system.kafka_consumers table to monitor kafka consumers 50999 by @ilejn
  • Bring back garbage dns tests 53286 by @arthurpassos
  • Add option to switch float parsing methods 52791 by @zvonand
  • init and destroy ares channel on demand.. 52634 by @arthurpassos
  • Fix toDecimalString function 52520 by @zvonand
  • Fixed inserting into Buffer engine 52440 by @Enmk
  • Fix typo last_removal_attemp_time 52104 by @filimonov
  • Basic auth to fetch Avro schema in Kafka 49664 by @ilejn
  • Add support for multi-directory globs 50559 by @zvonand
  • Small fix for toDateTime64() for dates after 2283-12-31 52130 by @zvonand
  • Small docs update for DateTime, DateTime64 52094 by @zvonand
  • Small docs update for toYearWeek() function 52090 by @zvonand
  • Accept key value delimiter as part of value 49760 by @arthurpassos
  • Row policy for database 47640 by @ilejn
  • Add setting to limit the max number of pairs produced by extractKeyVa… 49836 by @arthurpassos
  • sequence state fix 48603 by @ilejn
  • Secure in named collection 46323 by @ilejn
  • Refactor reading the pool settings from server config 48055 by @filimonov
  • Add toDecimalString function 47838 by @zvonand
  • Add unit test to assert arrow lib does not abort on fatal logs 47958 by @arthurpassos
  • Tests for orphaned role fix 47002 by @ilejn
  • Simplify clickhouse-test usage with -b 47578 by @Enmk
  • Modify find_first_symbols so it works as expected for find_first_not_symbols 47304 by @arthurpassos
  • Add user setting to force select final at query level 40945 by @arthurpassos
  • Attempt to fix ‘Local: No offset stored message’ from Kafka 42391 by @filimonov
  • Cancel c-ares failed requests and retry on system interrupts to prevent callbacks with dangling references and premature resolution failures 45629 by @arthurpassos

2022

  • Fixed exception when user tries to log in 42641 by @Enmk
  • Flatten list type arrow chunks on parsing 43297 by @arthurpassos
  • Added precise decimal multiplication and division 42438 by @zvonand
  • fix LDAP in case of many roles on user 42461 by @Enmk
  • Add SensitiveDataMasker to exceptions messages 42940 by @filimonov
  • Allow autoremoval of old parts if detach_not_byte_identical_parts enabled 43287 by @filimonov
  • Added applied row-level policies to system.query_log 39819 by @quickhouse
  • Fix Polygon dict xml config 42773 by @UnamedRus
  • Fix c-ares crash 42234 by @arthurpassos
  • Fix incorrect trace log line on dict reload 42609 by @filimonov
  • Fix Date from CSV parsing 42044 by @zvonand
  • Increase request_timeout_ms for s3 disks. 42321 by @filimonov
  • Test for ignore function in PARTITION KEY 39875 by @UnamedRus
  • Remove obsolete comment from the config.xml 41518 by @filimonov
  • Add Parquet Time32/64 conversion to CH DateTime32/64 41333 by @arthurpassos
  • CaresPTRResolver small safety improvement 40890 by @arthurpassos
  • Add support for extended (chunked) arrays for Parquet format 40485 by @arthurpassos
  • Fixed Unknown identifier (aggregate-function) exception which appears when a user tries to calculate WINDOW ORDER BY/PARTITION BY expressions over aggregate functions 39762 by @quickhouse
  • Fix docs for Base58 40798 by @zvonand
  • Fix CaresPTRResolver not reading hosts file 40769 by @arthurpassos
  • Fix conversion Date32 / DateTime64 / Date to narrow types 40217 by @zvonand
  • Base58 fix handling leading 0 / ‘1’ 40620 by @zvonand
  • Fixed point of origin for exponential decay window functions to the last value in window 39593 by @quickhouse
  • Check Decimal division overflow based on operands scale 39600 by @zvonand
  • Fix arrow column dictionary to ch lc 40037 by @arthurpassos
  • Unwrap LC column in IExecutablefunction::executeWithoutSparseColumns 39716 by @arthurpassos
  • Fixed regexp in test_match_process_uid_against_data_owner 39085 by @quickhouse
  • Fix timeSlots for DateTime64 37951 by @zvonand
  • Fixed regexp in test_quota 39084 by @quickhouse
  • Fix bug with maxsplit in the splitByChar 39552 by @filimonov
  • Uppercase ROWS, GROUPS, RANGE in queries with windows 39410 by @quickhouse
  • Simplify Base58 encoding/decoding 39292 by @zvonand
  • Test host_regexp against all PTR records instead of only one 37827 by @arthurpassos
  • Add check for empty proccessors in AggregatingTransform::expandPipeline 38584 by @filimonov
  • Fix exception messages in clickhouse su 38619 by @filimonov
  • Don’t spoil return code of integration tests runner with redundant tee 38548 by @excitoon
  • Add Base58 encoding/decoding 38159 by @zvonand
  • Fixed comments 38331 by @excitoon
  • nonNegativeDerivative docs description 38303 by @zvonand
  • Optimized processing of ORDER BY in window functions 34632 by @excitoon
  • fix deadlink with the proper one 37883 by @filimonov
  • Non Negative Derivative window function 37628 by @zvonand
  • Better parsing of versionId in S3::URI::URI 37964 by @excitoon
  • Don’t try to kill empty list of containers in integration/runner 37854 by @excitoon
  • Got rid of S3AuthSigner 37769 by @excitoon
  • Fix for exponential time decaying window functions 36944 by @excitoon
  • Moved ClientConfigurationPerRequest to ClickHouse 37767 by @excitoon
  • Typos 37773 by @excitoon
  • Implemented changing comment to a ReplicatedMergeTree table 37416 by @Enmk
  • Fixed error with symbols in key name in S3 37344 by @excitoon
  • Fixed problem with infs in quantileTDigest 37021 by @excitoon
  • Mention currentDatabase in the Buffer docs 36962 by @filimonov
  • Fixed missing enum values for ClientInfo::Interface 36482 by @Enmk
  • Set ENABLE_BUILD_PATH_MAPPING to OFF by default, if CMAKE_BUILD_TYPE is set to Debug 35998 by @traceon
  • Add some metrics to engine Kafka 35916 by @filimonov
  • Fix cgroups cores detection 35815 by @filimonov
  • Extended usage of Milliseconds, Microseconds, Nanoseconds 34353 by @zvonand
  • asynchronous_inserts engine AsynchronousInserts -> SystemAsynchronousInserts 34429 by @filimonov
  • Fix fromUnixTimestamp64 functions 33505 by @zvonand
  • Fix LDAP and Kerberos config handling 33689 by @traceon

2021

  • Kerberos docs – formatting fixes 33011 by @traceon
  • Views with comment 31062 by @Enmk
  • Test for issue #26643 27822 by @filimonov
  • Minor fixes for StorageMergeTree 32037 by @excitoon
  • Skip mutations of unrelated partitions in StorageMergeTree 21326 by @excitoon
  • Give some love to macOS platform 31957 by @traceon
  • Minor improvements to DUMP macro 31858 by @Enmk
  • Windowed time decay functions 29799 by @excitoon
  • Fixed null pointer exception in MATERIALIZE COLUMN 31679 by @excitoon
  • Update string-search-functions.md 31632 by @filimonov
  • Resolve nullptr in STS credentials provider for S3 31409 by @excitoon
  • (manual backport) Avoid crashes from parallel_view_processing 30472 by @filimonov
  • Fixing query performance issue in Live Views 31006 by @vzakaznikov
  • Better handling of xtables.lock in runner 30892 by @excitoon
  • Fixed --disable-net-host in runner 30863 by @excitoon
  • Non-recursive implementation for type list and its functions 29683 by @myrrc
  • Implemented creating databases with comments 29429 by @Enmk
  • Fix Xcode 13 build 29682 by @traceon
  • More warning flags for clang 29668 by @myrrc
  • Introducing Fn concept for function signature checking, simplifying SimpleCache 29500 by @myrrc
  • Making Monotonicity an aggregate to use with designated initializers 29540 by @myrrc
  • Implemented modifying table comments with ALTER TABLE t MODIFY COMMENT 'value' 29264 by @Enmk
  • Better exception messages for some String-related functions 29252 by @Enmk
  • Fixed logging level for message in S3Common.cpp 29308 by @excitoon
  • Removed sub-optimal mutation notifications in StorageMergeTree when merges are still going 27552 by @excitoon
  • Improving CH type system with concepts 28659 by @myrrc
  • optional<> semantics for parsing MergeTreePartInfo and DetachedPartInfo 28085 by @myrrc
  • Governance/session log 22415 by @Enmk
  • ALTER TABLE ... MATERIALIZE COLUMN 27038 by @excitoon
  • Fixed a typo in comments to SinkToStorage 28078 by @excitoon
  • Don’t silently ignore errors and don’t count delays in ReadBufferFromS3 27484 by @excitoon
  • Partitioned write into s3 table function 23051 by @excitoon
  • S3 disk unstable reads test 27176 by @excitoon
  • Avoid nullptr dereference during processing of NULL messages in Kafka for some formats 27794 by @filimonov
  • less sys calls #2: make vdso work again 27492 by @filimonov
  • Fixed parsing DateTime64 value from string. 27605 by @Enmk
  • Less Stopwatch.h 27569 by @filimonov
  • Changelog for 21.8 27271 by @filimonov
  • Improved logging of hwmon sensor errors in AsynchronousMetrics 27031 by @excitoon
  • Using formatted string literals in clickhouse-test, extracted sort key functions and stacktraces printer 27228 by @myrrc
  • Fixing reading of /proc/meminfo when kB suffix is not present 27361 by @myrrc
  • Less clock_gettime calls 27325 by @filimonov
  • Update changelog/README.md 27221 by @filimonov
  • Safer ReadBufferFromS3 for merges and backports 27168 by @excitoon
  • Moving to TestFlows 1.7.20 that has native support for parallel tests. 27040 by @vzakaznikov
  • Updated extractAllGroupsHorizontal – flexible limit on number of matches 26961 by @Enmk
  • Improved runner to use pytest keyword expressions 27026 by @excitoon
  • Enabling RBAC TestFlows tests and crossing out new fails. 26747 by @vzakaznikov
  • Update error message in tests/testflows/window_functions/tests/errors.py 26744 by @vzakaznikov
  • Fixed wrong error message in S3Common 26738 by @excitoon
  • Enabling all TestFlows modules except LDAP after Kerberos merge. 26366 by @vzakaznikov
  • Enabling Kerberos Testflows tests 21659 by @zvonand
  • Fixing RBAC sample by tests in TestFlows. 26329 by @vzakaznikov
  • Using required columns for block size prediction 25917 by @excitoon
  • WIP mark subset of tests that depend on specific config modifications 26105 by @myrrc
  • Disabling TestFlows LDAP module due to test fails. 26065 by @vzakaznikov
  • Enabling all TestFlows modules and fixing some tests. 26011 by @vzakaznikov
  • Guidelines for adding new third-party libraries and maintaining custom changes in them 26009 by @traceon
  • Fix native macOS (Xcode) builds 25736 by @traceon
  • Changed css theme for code highlighting 25682 by @myrrc
  • Enabling TestFlows RBAC tests. 25498 by @vzakaznikov
  • SYSTEM RESTORE REPLICA replica [ON CLUSTER cluster] 13652 by @myrrc
  • TestFlows: increase LDAP verification cooldown performance tests timeout to 600 sec 25374 by @vzakaznikov
  • Enable TestFlows LDAP tests 25278 by @vzakaznikov
  • Kafka failover issue fix 21267 by @filimonov
  • Improved test_storage_s3_get_unstable 23976 by @excitoon
  • Adding leadInFrame/lagInFrame window functions TestFlows tests 25144 by @vzakaznikov
  • Fixed problems with double spaces in logs for S3Common 24897 by @excitoon
  • Added support of hasAny function to bloom_filter index. 24900 by @Enmk
  • Fixed bug with declaring S3 disk at root of bucket 24898 by @excitoon
  • Disabling extended precision data types TestFlows tests 25125 by @vzakaznikov
  • Fix using Yandex dockerhub registries for TestFlows. 25133 by @vzakaznikov
  • Add test issue #23430 24941 by @filimonov
  • Update CHANGELOG.md 25083 by @filimonov
  • Fix the test after #20393 24967 by @filimonov
  • Fix bad error message in docker entrypoint 24955 by @filimonov
  • Ldap role mapping deadlock fix 24431 by @traceon
  • Adding support to save clickhouse server logs in TestFlows check 24504 by @vzakaznikov
  • Try to improve kafka flaky test 24465 by @filimonov
  • LDAP: user DN detection functionality for role mapping with Active Directory 22228 by @traceon
  • Different loglevels for different logging channels 23857 by @filimonov
  • Fixed now64(): added second optional argument for timezone. 24091 by @Enmk
  • Enabling running of all TestFlows modules in parallel 23942 by @vzakaznikov
  • Better handling of HTTP errors in PocoHTTPClient 23844 by @excitoon
  • Added region parameter for S3 storage and disk 23846 by @excitoon
  • Documentation fix for quantileTDigestWeighted 23758 by @excitoon
  • Fixing testflows window function distributed tests 23975 by @vzakaznikov
  • Testflows tests for DateTime64 extended range 22729 by @zvonand
  • Added solution for host network mode in Ubuntu 20.10+ 23939 by @excitoon
  • TestFlows window functions tests 23704 by @vzakaznikov
  • Update librdkafka 1.6.0-RC3 to 1.6.1 23874 by @filimonov
  • autodetect arch of gosu in server dockerfile 23802 by @filimonov
  • [ci run] Tdigest fix to 21.1 23360 by @excitoon
  • Fixed quantile(s)TDigest inaccuracies 23314 by @excitoon
  • Fix restart / stop command hanging. 23552 by @filimonov
  • Adding Map type tests in TestFlows 21087 by @vzakaznikov
  • Disable clickhouse-odbc-bridge build when ODBC is disabled 23357 by @traceon
  • Fix AppleClang build 23358 by @traceon
  • Retries on HTTP connection drops during reads from S3 22988 by @excitoon
  • Added insecure IMDS credentials provider for S3 21852 by @excitoon
  • Consistent AWS timeouts 22594 by @excitoon
  • Fixed erroneus failure of extractAllGroupsHorizontal on large columns 23036 by @Enmk
  • Fixes: formatDateTime and toDateTime64 22937 by @Enmk
  • Fixed dateDiff for DateTime64 22931 by @Enmk
  • Updated toStartOf* docs 22935 by @zvonand
  • Fix vanilla GCC compilation in macOS 22885 by @traceon
  • Fix issue with quorum retries behaviour 18215 by @filimonov
  • Better tests for finalize in nested writers 22110 by @excitoon
  • AppleClang compilation fix 22561 by @traceon
  • Revisit macOS build instructions 22508 by @traceon
  • Lookup parts/partitions in replica’s own detached/ folder before downloading them from other replicas 18978 by @myrrc
  • Fix native macOS build for ALL_BUILD (Xcode/AppleClang) 22289 by @traceon
  • Add suffixes for dockerfile arguments 22301 by @filimonov
  • Add possibility to customize the source for clickhouse-server docker image builds. 21977 by @filimonov
  • Update column.md 22061 by @filimonov
  • docker: avoid chown of . 22102 by @filimonov
  • Adding documentation for Kerberos external authenticator. 21328 by @zvonand
  • Updating docker/test/testflows/runner/dockerd-entrypoint.sh to use Yandex dockerhub-proxy 21551 by @vzakaznikov
  • Documentation on OPTIMIZE DEDUPLICATE BY expression. 21739 by @Enmk
  • Date time64 extended range 9404 by @Enmk
  • Reverted S3 connection pools 21737 by @excitoon
  • Updating TestFlows to 1.6.74 21673 by @vzakaznikov
  • Added Grant, Revoke and System query_kind for system.query_log 21102 by @Enmk
  • Fixed open behavior of remote host filter in case when there is remote_url_allow_hosts section in configuration but no entries there 20058 by @excitoon
  • Add Kerberos support for authenticating existing users when accessing over HTTP 14995 by @traceon
  • Fixing LDAP authentication performance test by removing assertion 21507 by @vzakaznikov
  • Adjust prewhere_with_row_level_filter performance test 21442 by @traceon
  • avoid race in librdkafka 21452 by @filimonov
  • Case-insensitive compression methods for table functions 21416 by @excitoon
  • Allow row policies with PREWHERE 19576 by @traceon
  • Better kafka tests 21111 by @filimonov
  • Adding documentation for LIVE VIEWs 20217 by @vzakaznikov
  • Adding documentation on how to use LDAP server as external user authenticator or directory 20208 by @vzakaznikov
  • Added Server Side Encryption Customer Keys support in S3 client 19748 by @excitoon
  • Add libnss_files to alpine image 20336 by @filimonov
  • Add example of client configuration adjustments 20275 by @filimonov
  • Update entrypoint.sh 20012 by @filimonov
  • Adding support for periodically refreshed LIVE VIEW tables 14822 by @vzakaznikov
  • Adding retries for docker-compose start, stop and restart in TestFlows tests 19852 by @vzakaznikov
  • Try to make test_dir.tar smaller 19833 by @filimonov
  • Used global region for accessing S3 if can’t determine exactly 19750 by @excitoon
  • Fixed table function S3 auto compression mode 19793 by @excitoon
  • Updated docs on encrypt/decrypt functions 19819 by @Enmk
  • Update of AWS C++ SDK 17870 by @excitoon
  • Updating TestFlows AES encryption tests to support changes to the encrypt plaintext parameter. 19674 by @vzakaznikov
  • Added prefix-based S3 endpoint settings 18812 by @excitoon
  • LDAP group to local role mapping support 17211 by @traceon
  • Kafka for arm64 19369 by @filimonov
  • Allow docker to be executed with arbitrary uid 19374 by @filimonov
  • Allow building librdkafka without ssl 19337 by @filimonov
  • Update librdkafka to v1.6.0-RC2 18671 by @filimonov
  • Connection pools for S3 13405 by @excitoon
  • Docker: fix uid/gid of the clickhouse user 19096 by @filimonov
  • Update test containers 19058 by @filimonov
  • Docker: better clickhouse-server entrypoint 18954 by @filimonov
  • arrayMin/Max/Sum – fix bad description, add examples 18833 by @filimonov
  • Fixed GCC coverage build 18846 by @myrrc
  • TestFlows: fixes to LDAP tests that fail due to slow test execution 18790 by @vzakaznikov
  • Check if XCODE_IDE is true and avoid enforcing ninja in that case 18773 by @traceon
  • Fix AppleClang compilation – Remove auto in function parameters 18674 by @traceon

2020

  • Update build instructions for clang-11 18642 by @filimonov
  • Allow caching of successful “bind” attempts to LDAP server for configurable period of time 15988 by @traceon
  • Allow multiplication of Decimal and Float 18145 by @myrrc
  • Docs for table, column, database names passed as parameters. 18519 by @UnamedRus
  • Allow AppleClang builds 18488 by @traceon
  • Fix exception text from Pipe.cpp 18396 by @filimonov
  • Perf test for ColumnMap 18317 by @Enmk
  • Fixed Date vs DateTime64 comparison 18050 by @Enmk
  • Fixed flaky test 18313 by @Enmk
  • Fixes in ODBC dictionary reload and ODBC bridge reachability 18278 by @traceon
  • OPTIMIZE DEDUPLICATE BY COLUMNS 17846 by @Enmk
  • Merging TestFlows requirements for AES encryption functions. 18221 by @vzakaznikov
  • Updating TestFlows version to the latest 1.6.72 18208 by @vzakaznikov
  • DETACH TABLE PERMANENTLY 17642 by @filimonov
  • Fixed std::out_of_range: basic_string in S3 URL parsing 18059 by @excitoon
  • kafka test_premature_flush_on_eof flap 18000 by @filimonov
  • Decrease log verbosity of disconnecting clients 18005 by @filimonov
  • dict notes 17864 by @filimonov
  • Added proper authentication for S3 client 16856 by @excitoon
  • Date vs DateTime64 comparison 17895 by @Enmk
  • Fixed comparison of DateTime64 with different scales 16952 by @Enmk
  • Updating TestFlows README.md to include “How To Debug Why Test Failed” section. 17808 by @vzakaznikov
  • Attempt to use IOStream in AWS SDK 17794 by @excitoon
  • Document JSONAsString 17467 by @filimonov
  • add a note for copier docs 17468 by @filimonov
  • Fix CMake generation and build for native Xcode and AppleClang 17501 by @traceon
  • Allow different types in avgWeighted. Allow avg and avgWeighed to operate on extended integral types. 15419 by @myrrc
  • Update cctz to the latest master, update tzdb to 2020d. 17204 by @filimonov
  • execute_merges_on_single_replica 16424 by @filimonov
  • Fixing unstable test in tests/testflows/ldap/external_user_directory/tests/authentications.py 17161 by @vzakaznikov
  • Fixed wrong result in big integers (128, 256 bit) when casting from double to int64_t. 16986 by @myrrc
  • Fix ROCKSDB_ERROR value 17047 by @traceon
  • Reresolve the IP of the format_avro_schema_registry_url in case of errors. 16985 by @filimonov
  • Install script should always create subdirs in config folders. 16936 by @filimonov
  • SNI for tcp secure 16938 by @filimonov
  • Fix for issue #16862 16865 by @filimonov
  • Backport #16865 to 20.3. 16927 by @filimonov
  • Remove timeSeriesGroupRateSum from docs 16901 by @filimonov
  • ALTER UPDATE/DELETE ... IN PARTITION with partition pruning in ReplicatedMergeTree 13403 by @excitoon
  • Create adding_test_queries.md 16822 by @filimonov
  • Test for the issue #12615 16762 by @filimonov
  • Update clickhouse-copier.md 16663 by @filimonov
  • Remove redundant diagnostics and fixed test_jbod_overflow 16411 by @excitoon
  • Update date-time-functions.md 16549 by @filimonov
  • Fixing the inability to deserialize AVRO into table if it contains LowCardinality columns 16521 by @myrrc
  • docker: clickhouse-server on the top of alpine 16479 by @filimonov
  • Update other-functions.md 16480 by @filimonov
  • Fix typos reported by codespell 16425 by @filimonov
  • Fix LDAP tests by grabbing log size after container is stopped 16440 by @vzakaznikov
  • Fixed flappy test_multiple_disks 16235 by @excitoon
  • clickhouse-local can work without tmp directory 16280 by @filimonov
  • Fixing another issue in LDAP tests 16365 by @vzakaznikov
  • Fixing fails in LDAP external user directory tests. 16363 by @vzakaznikov
  • Add a log message after an access storage is added 16249 by @traceon
  • Add setTemporaryStorage to clickhouse-local to make OPTIMIZE work 16192 by @filimonov
  • Fixing tests/queries/0_stateless/01446_json_strings_each_row.sql test 16247 by @vzakaznikov
  • encrypt and decrypt functions 11844 by @Enmk
  • Added disable_merges option for volumes in multi-disk configuration 13956 by @excitoon
  • Add LDAP user directory support for locally non-existent users 12736 by @traceon
  • Fixing arrayIndex functions when right operand is LC but left is not 16038 by @myrrc
  • ProtobufSingle format 15199 by @filimonov
  • Fix the bug when NOTHING_TO_DO events wrongly increment count_no_work_done 15987 by @filimonov
  • Better initialization of S3 storage 15646 by @excitoon
  • fix flap in no_holes_when_write_suffix_failed 15757 by @filimonov
  • Mention core_dump size limit in docs 15416 by @filimonov
  • Fixed compression in S3 storage 15376 by @excitoon
  • Fixing options’ names’ links in cmake docs generator 15410 by @myrrc
  • CMake flags reference generator, the guide for adding new options, and the attempt to correct the existing options 14711 by @myrrc
  • Better debug message from MergeTreeDataSelectExecutor 15169 by @filimonov
  • Fixing tests/integration/test_distributed_over_live_view/test.py 14892 by @vzakaznikov
  • Fix enable_optimize_predicate_expression for finalizeAggregation 14937 by @filimonov
  • Update clickhouse-benchmark.md 14803 by @filimonov
  • Extracted the debug info generation for functions into a cmake option 14657 by @myrrc
  • Correct nullability checker for LowCardinality nested columns 14591 by @myrrc
  • MySql datatypes dateTime64 and decimal 11512 by @Enmk
  • Fix a build for old some OS with old find 14215 by @filimonov
  • testflows: adding retry logic when bringing up docker-compose cluster 14112 by @vzakaznikov
  • tzdata improvements 13648 by @filimonov
  • Optimising has(), indexOf(), and countEqual() for Array(LowCardinality(T)) and constant right arguments 12550 by @myrrc
  • CI checks md file 13615 by @myrrc
  • Fixed flappy test_multiple_disks::test_start_stop_moves 13759 by @excitoon
  • Testflows LDAP module: adding missing certificates and dhparam.pem for openldap4 13780 by @vzakaznikov
  • Updating LDAP user authentication suite to check that it works with RBAC 13656 by @vzakaznikov
  • testflows: increasing health-check timeouts for clickhouse nodes 13612 by @vzakaznikov
  • Removed -DENABLE_CURL_CLIENT for contrib/aws 13628 by @excitoon
  • Proper remote host checking in S3 redirects 13404 by @excitoon
  • Fix for test_kafka_flush_by_block_size after rdkafka 1.5 13285 by @filimonov
  • Keep original query_masking_rules.xml when performing fasttests 13382 by @Enmk
  • Applying LDAP authentication test fixes 13310 by @vzakaznikov
  • Add test for macros usage in some kafka settings. 13103 by @filimonov
  • Volumes related refactorings 12670 by @excitoon
  • Small fixes to the RBAC SRS 13152 by @vzakaznikov
  • Fixing 00960_live_view_watch_events_live.py test 13108 by @vzakaznikov
  • Adding RBAC syntax tests. 12642 by @vzakaznikov
  • Adding extra xfails for some ldap tests. 13054 by @vzakaznikov
  • increasing timeouts in testflows tests 12949 by @vzakaznikov
  • Updated broken link in asynchronous_metric_log.md 12766 by @excitoon
  • Add LDAP authentication support 11234 by @traceon
  • Retain existing config.d/query_masking_rules.xml from server package 12526 by @Enmk
  • Fixing race condition in live view tables which could cause data duplication and live view tests 12519 by @vzakaznikov
  • Separated AWSAuthV4Signer into different logger, removed “AWSClient: AWSClient” 12320 by @excitoon
  • min_bytes_for_seek setting for DiskS3 12434 by @excitoon
  • Resolve #12098 12397 by @myrrc
  • Increasing default timeout for live view tests from 20 sec to 120 sec 12416 by @vzakaznikov
  • Backport #12120 to 20.4 12396 by @filimonov
  • Backport #12120 to 20.3 12395 by @filimonov
  • Implemented single part uploads for DiskS3 12026 by @excitoon
  • Adding a simple example of using TestFlows. 12090 by @vzakaznikov
  • Tests for fixed issues #10846, #7347, #3767 12193 by @filimonov
  • Add query context for system logs and to Buffer 12120 by @filimonov
  • Switched paths in S3 metadata to relative 11892 by @excitoon
  • ILIKE operator 12125 by @myrrc
  • Test for input_format_allow_errors_num in CSV 12105 by @filimonov
  • max_rows_to_read remove note about ‘applied on each thread separately’ 12070 by @filimonov
  • Moved useless S3 logging to TRACE level 12067 by @excitoon
  • Moves task shall be started if new storage policy needs them 11893 by @excitoon
  • Kafka work with formats based on PeekableReadBuffer and other improvements 11599 by @filimonov
  • Remove note about experimental from skipping indexes docs 11704 by @filimonov
  • extractAllGroupsHorizontal and extractAllGroupsVertical 11554 by @Enmk
  • Fix corner case (only) for exit code overflow 11601 by @filimonov
  • Adding support for PREWHERE in live view tables. 11495 by @vzakaznikov
  • backport #9884 to 20.3 11552 by @filimonov
  • 20.1 kafka backports 11519 by @filimonov
  • 20.3 kafka backports 11520 by @filimonov
  • Fixed using nullptr source and dest buffers in codecs, fixed test 11471 by @Enmk
  • Added tests for improved S3 URL parsing 11174 by @excitoon
  • Better settings for Kafka 11388 by @filimonov
  • Fixed geohashesInBox argument range 11403 by @Enmk
  • Virtual columns for Kafka headers 11283 by @filimonov
  • Add _timestamp_ms virtual columns to Kafka engine 11260 by @filimonov
  • Kafka clientid (finishing #11073) 11252 by @filimonov
  • Update librdkafka to version 1.4.2 11256 by @filimonov
  • Add libsasl2-dev and heimdal-multidev in CI Docker image 11310 by @traceon
  • Add prefix & facility to librdkafka logs 11261 by @filimonov
  • Fixed reschedule issue in Kafka 11149 by @filimonov
  • {to,from}UnixTimestamp64{Milli,Micro,Nano} functions 10923 by @Enmk
  • Fixed S3 globbing which could fail in case of more than 1000 keys and some backends 11179 by @excitoon
  • Fix for the hang during deletion of engine=Kafka (one more time) 11145 by @filimonov
  • Revert “Disable some flappy tests” 8840 by @excitoon
  • Fixed parsing of S3 URL 11036 by @excitoon
  • Fixed parseDateTime64BestEffort implementation 11038 by @Enmk
  • Fixes the potential missed data during termination of Kafka engine table 11048 by @filimonov
  • Added move_ttl_info to system.parts 10591 by @excitoon
  • Fixed link to external dictionaries 11020 by @excitoon
  • Fixing 00979_live_view_watch_continuous_aggregates test 11024 by @vzakaznikov
  • Fix for the hang during deletion of engine=Kafka 10910 by @filimonov
  • Adding support for ALTER RENAME COLUMN query to Distributed table engine 10727 by @vzakaznikov
  • Add OpenLDAP third-party library integration (system or contrib/build) 10861 by @traceon
  • function toStartOfSecond(DateTime64) -> DateTime64 10722 by @Enmk
  • Fixed DateLUTImpl constructors to avoid accidental copying 10809 by @Enmk
  • Fixed handling condition variable for synchronous mutations 10588 by @excitoon
  • Fixing and re-enabling 00979_live_view_watch_continuous_aggregates.py test. 10658 by @vzakaznikov
  • extractAllGroups(haystack, re_needle) function 10534 by @Enmk
  • Cleaned up AppleClang version check 10708 by @traceon
  • Blind fix for AppleClang version and char8_t support check 10705 by @traceon
  • Trying to fix tests/queries/0_stateless/01246_insert_into_watch_live_view.py test 10670 by @vzakaznikov
  • Fixing hard coded timeouts in new live view tests. 10604 by @vzakaznikov
  • Xcode generator build fix 10541 by @traceon
  • Fixed comparing DateTime64 in WHERE against String value 10560 by @Enmk
  • Increasing timeout when opening a client in tests/0_stateless/helpers/client.py 10599 by @vzakaznikov
  • Adding support for INSERT INTO table WATCH query to build streaming systems using LIVE VIEW tables 10498 by @vzakaznikov
  • add CA certificates to clickhouse-server docker image 10476 by @filimonov
  • Allowed to alter column in non-modifying data mode when the same type is specified 10382 by @excitoon
  • Fixing 00964_live_view_watch_events_heartbeat.py test 10356 by @vzakaznikov
  • Initial support for live view tables over distributed 10179 by @vzakaznikov
  • Splitting string into Alpha-Num tokens with SIMD intrinsics. 9968 by @Enmk
  • clickhouse-docker-util 10151 by @filimonov
  • allow_nondeterministic_mutations 10186 by @filimonov
  • 19.16 backports 10156 by @excitoon
  • Backport #9884 to 19.16 [Kafka retry commits on failure] 10144 by @excitoon
  • Fixing 00964_live_view_watch_events_heartbeat.py test to avoid race condition 9944 by @vzakaznikov
  • Fixed DeleteOnDestroy logic in ATTACH PART and added few tests 9410 by @excitoon
  • Kafka retry commits on failure 9884 by @filimonov
  • Date time various timezone fixes 9574 by @Enmk
  • Added MATERIALIZE TTL IN PARTITION 9581 by @excitoon
  • Try newer version of odbc driver 9484 by @filimonov
  • Date time formatting tests 9567 by @Enmk
  • Fixed wrong log messages about missing default disk or policy 9530 by @excitoon
  • Added reloading storage configuration from configuration file 8594 by @excitoon
  • Kafka exceptions from destructors 9513 by @filimonov
  • Set X-ClickHouse-Timezone HTTP response header to the server’s timezone 9493 by @traceon
  • Backport 8549 to 19.16 [Do not allow to merge data moving it against storage policy volume order] 9496 by @excitoon
  • Backport 8549 to 19.16 [Do not allow to merge data moving it against storage policy volume order] 9486 by @excitoon
  • Little typo fixed 9397 by @excitoon
  • Added a check for storage policy in cloneAndLoadDataPartOnSameDisk() 9383 by @excitoon
  • adjust dockerfile used in tests to allow odbc roundtrip 9348 by @filimonov
  • Pass TTL rule info with block to other replicas 8598 by @excitoon
  • key and timestamp in Kafka producer 8969 by @filimonov
  • 19.17 backports 8992 by @filimonov
  • 20.1 few backports 8993 by @filimonov
  • Fixed buffer overflow on decoding small sequences with Gorilla and DoubleDelta 9028 by @Enmk
  • 19.16 few fixes backported 8991 by @filimonov
  • IN with function result 5342 by @Enmk
  • Added globs/wildcards for s3 8851 by @excitoon
  • Kafka fixes part2 8917 by @filimonov
  • Fixed StorageInput::StorageInput a little bit 8850 by @excitoon
  • “Atomically” remove parts on destroy. 8402 by @excitoon
  • Reworking fix for issue 7878 (version 2) 8788 by @vzakaznikov
  • Fixed bug with MergeTreeReadPool 8791 by @excitoon
  • Set X-ClickHouse-Format HTTP response header to the format name 8769 by @traceon
  • Fix issue #7878 8766 by @vzakaznikov
  • Kafka fixes backport 19 17 8763 by @filimonov
  • Test for incremental filling with feedback 8744 by @filimonov
  • Fixed ALTER MODIFY TTL 8422 by @excitoon
  • Fixed MergeTreeData::areBackgroundMovesNeeded according to move TTL feature 8672 by @excitoon
  • Fixed a bug with double move which corrupt original part 8680 by @excitoon
  • typo fix 8666 by @filimonov
  • Fixed deduplication issues in more test_multiple_disks tests 8671 by @excitoon
  • Fixed deduplication issue in test_multiple_disks::test_concurrent_alter_move 8642 by @excitoon
  • Allow to change storage_policy to not less rich one 8107 by @excitoon
  • Do not allow to merge data moving it against storage policy volume order 8549 by @excitoon
  • Fixed codec performance test 8615 by @Enmk
  • fix printing changelog with non-ascii chars 8611 by @filimonov
  • Increased number of rows to make tests results noticeable. 8574 by @Enmk
  • Live View storage engine refactoring of getNewBlocks() and writeIntoLiveView() methods. 8519 by @vzakaznikov
  • make_changelog.py::process_unknown_commits unicode fix 8565 by @filimonov
  • Added creation of user and working directory to Arch Linux install script 8534 by @excitoon
  • Gorilla and doubledelta performance 8019 by @Enmk
  • Fixed build of openssl with make 8528 by @excitoon
  • Improved extracting of GCC version. 8516 by @excitoon
  • Live view support for subquery 7792 by @vzakaznikov

2019

  • Improved check for parts on different disks 8440 by @excitoon
  • Fixed ALTER TTL for replicated tables 8318 by @excitoon
  • Added check for valid destination in a move TTL rule 8410 by @excitoon
  • Check extra parts of MergeTree at different disks, in order to not allow to miss data parts at undefined disks 8118 by @excitoon
  • Added test_ttl_move::test_ttls_do_not_work_after_alter test 8407 by @excitoon
  • Perf tests for all supported codecs against Float64 and UInt64. 8349 by @Enmk
  • Fixed type check in toDateTime64 8375 by @Enmk
  • Handling error from clock_gettime properly 8291 by @Enmk
  • now64() tests 8274 by @Enmk
  • Fixed crash in now64() when it argument is a result of function call. 8270 by @Enmk
  • Added english documentation for extended TTL syntax 8261 by @excitoon
  • Kafka fixes backport 19.16 8249 by @filimonov
  • Added documentation for extended TTL syntax 8059 by @excitoon
  • Init query context for Kafka to make subqueries work 8197 by @filimonov
  • Improved performance of max(), min(), argMin(), argMax() for DateTime64 8199 by @Enmk
  • Fixed test_multiple_disks::test_kill_while_insert a little 8135 by @excitoon
  • Test for issue #5142 8190 by @filimonov
  • Better logging in background move task. 8192 by @excitoon
  • Fixed metrics in BackgroundProcessingPool 8194 by @excitoon
  • Fixed flapping test_ttl_move::test_moves_after_merges_work 8173 by @excitoon
  • DateTime64 data type 7170 by @Enmk
  • Move parts between storage volumes according to configured TTL expressions 8140 by @excitoon
  • Fixed linker searching logic 8139 by @excitoon
  • Move parts between storage volumes according to configured TTL expressions 7420 by @excitoon
  • Fixed a typo 8134 by @excitoon
  • Better linking 8115 by @excitoon
  • FIxed behavior with ALTER MOVE ran immediately after merge finish moves superpart of specified 8104 by @excitoon
  • Ignore redundant copies of parts after move and restart 7810 by @excitoon
  • Removed localtime from `HTTPDictionarySource::getUpdateFieldAndDate… 8042 by @excitoon
  • Added -D LINKER_NAME=lld to instruction to sanitizers. 8025 by @excitoon
  • Kafka fixes 8016 by @filimonov
  • Added information about paths to system.merges. 8043 by @excitoon
  • Authentication in S3 table function and storage 7623 by @excitoon
  • Fix build with Poco Redis 7835 by @filimonov
  • [wip] attempt to improve kafka parsing performance 7935 by @filimonov
  • ALTER to LowCardinality was leading to segfault on empty parts 7985 by @filimonov
  • Separated pool for background moves 7670 by @excitoon
  • Removed check for using Date or DateTime column from TTL expressions 7920 by @excitoon
  • Added disk info to system.detached_parts 7833 by @excitoon
  • Fixed errors with space reservation introduced in #7558 and #7602 7873 by @excitoon
  • Disable DwarfFDECache in libunwind 7838 by @filimonov
  • odbc table function now respects external_table_functions_use_nulls 7506 by @Enmk
  • Fixed bug with keep_free_space_ratio not being read from disks configuration 7645 by @excitoon
  • Fixed exception in case of using 1 argument while defining S3, URL and HDFS storages 7618 by @excitoon
  • Fixed comment in configuration of test_multiple_disks. 7636 by @excitoon
  • Fixed comment in configuration of test_multiple_disks. 7636 by @excitoon
  • Made MergeTreeData::cloneAndLoadDataPart only work for the same disk. 7602 by @excitoon
  • Made mutation to choose the same disk in ReplicatedMergeTree. 7558 by @excitoon
  • remove some obsolete notes about mutations 7483 by @filimonov
  • Add handling of SQL_TINYINT and SQL_BIGINT, fix SQL_FLOAT in ODBC Bridge 7491 by @traceon
  • Allowed to have some parts on destination disk or volume in MOVE PARTITION 7434 by @excitoon
  • Added integration test for #7414 (validation of max_data_part_size_bytes). 7450 by @excitoon
  • Fixed erroneous warning max_data_part_size is too low 7423 by @excitoon
  • Fixed NULL-values in nullable columns through ODBC-bridge 7402 by @Enmk
  • Fixing ThreadSanitizer data race error in the LIVE VIEW when accessing no_users_thread variable 7353 by @vzakaznikov
  • Fixing AddressSanitizer error in the LIVE VIEW getHeader() method. 7271 by @vzakaznikov
  • Fixed issue of using HTTP timeout as TCP timeout value. 7351 by @Enmk
  • Improved readability a little bit (MergeTreeData::getActiveContainingPart). 7361 by @excitoon
  • More performance test for Date and DateTime 7332 by @Enmk
  • A quick fix to resolve crash in LIVE VIEW table and re-enabling all LIVE VIEW tests. 7201 by @vzakaznikov
  • Minor doc fixes. 7199 by @excitoon
  • Fixed time calculation in MergeTreeData. 7172 by @excitoon
  • rpm: preserve existing configs on package upgrade 7103 by @filimonov
  • add obsoletes section to clickhouse-server spec 7073 by @filimonov
  • Adding performance test for huge pk (issue #6924) 6980 by @filimonov
  • performance test for lowcardinality array 6930 by @filimonov
  • Docs cleanup 6859 by @Enmk
  • Improvements for failover of Distributed queries 6399 by @Enmk
  • Better objects ownership in QueryMaskingRules 6810 by @filimonov
  • Fix some pvs reported issues 6837 by @filimonov
  • Ability to change history path by changing env 6840 by @filimonov
  • Query masking rules 5710 by @filimonov
  • Reduced children_mutex lock scope in IBlockInputStream 6740 by @Enmk
  • Fix live view no users thread 6656 by @vzakaznikov
  • Implemented hasTokenCaseInsensitive function 6662 by @Enmk
  • hasToken function implementation 6596 by @Enmk
  • remove doubled const TABLE_IS_READ_ONLY 6566 by @filimonov
  • Uninstrusive implementation of LIVE VIEW tables 5541 by @vzakaznikov
  • Fixed Gorilla encoding error on small sequences. 6444 by @Enmk
  • geohashesInbox(lon_min, lat_min, lon_max, lat_max, precision) function 6127 by @Enmk
  • Fixed Gorilla and DoubleDelta codec performance tests. 6179 by @Enmk
  • Docs enable optimize predicate expression 6122 by @filimonov
  • cmake – disallow switching ENABLE_MONGODB separate from ENABLE_POCO_MONGODB 6077 by @filimonov
  • configs for query masking rules tests 6009 by @filimonov
  • Fixed DoubleDelta encoding cases for random Int32 and Int64. 5998 by @Enmk
  • Fixed DoubleDelta codec edge case 5824 by @Enmk
  • fix macos build after #4828 5830 by @filimonov
  • fix build on macosx and gcc9 5822 by @filimonov
  • Gorilla column encoding 5600 by @Enmk
  • Small improvements for docs of Engine=Join 5433 by @filimonov
  • Changelog renames issues 5428 by @filimonov
  • more fixes for integration tests dockerfiles 5360 by @filimonov
  • Several improvements in integration tests runner 5340 by @filimonov
  • Implementation of geohashEncode and geohashDecode functions; 5003 by @Enmk
  • IPv4 and IPv6 domain docs. 5210 by @Enmk
  • insert_sample_with_metadata small fixes in doc 5121 by @filimonov
  • add clickhouse-benchmark accepted stages names 5006 by @filimonov
  • Fixed test failures when running clickhouse-server on different host 4713 by @Enmk
  • Test runner script and corresponding Dockerfile and docker-compose. 4347 by @Enmk

2018

  • Added support of int-based types: Int\UInt(8,16,32), Date, DateTime f… 3123 by @Enmk