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2022 Changelog
ClickHouse release v21.8.12.29-lts FIXME as compared to v21.8.11.4-lts
Performance Improvement
- Backported in #31732: Improve performance of JSON and XML output formats. #31673 (Alexey Milovidov).
Bug Fix
- Backported in #31575: Quota limit was not reached, but the limit was exceeded. This PR fixes #31174. #31337 (sunny).
Bug Fix (user-visible misbehaviour in official stable or prestable release)
- Backported in #31204: Fix abort in debug server and
DB::Exception: std::out_of_range: basic_string
error in release server in case of bad hdfs url by adding additional check of hdfs url structure. #31042 (Kruglov Pavel). - Backported in #31253: Fix bug in Keeper which can lead to inability to start when some coordination logs was lost and we have more fresh snapshot than our latest log. #31150 (alesapin).
- Backported in #31521: Remove not like function into RPNElement. #31169 (sundyli).
- Backported in #31552: Resolve
nullptr
in STS credentials provider for S3. #31409 (Vladimir Chebotarev). - Backported in #31582: * Disable
partial_merge_join_left_table_buffer_bytes
before bug in this optimization is fixed. See #31009). * Remove redundant optionpartial_merge_join_optimizations
. #31528 (Vladimir C). - Backported in #31599: Fix invalid generated JSON when only column names contain invalid UTF-8 sequences. #31534 (Kevin Michel).
- Backported in #31779:
RENAME TABLE
query worked incorrectly on attempt to rename an DDL dictionary inOrdinary
database, it's fixed. #31638 (Alexander Tokmakov). - Backported in #31790: Settings
input_format_allow_errors_num
andinput_format_allow_errors_ratio
did not work for parsing of domain types, such asIPv4
, it's fixed. Fixes #31686. #31697 (Alexander Tokmakov). - Backported in #31829: Fixed
there are no such cluster here
error on execution ofON CLUSTER
query if specified cluster name is name ofReplicated
database. #31723 (Alexander Tokmakov). - Backported in #31813: Fix race in JSONEachRowWithProgress output format when data and lines with progress are mixed in output. #31736 (Kruglov Pavel).
- Backported in #31761: Fix usage of
Buffer
table engine with typeMap
. Fixes #30546. #31742 (Anton Popov). - Backported in #31890: Fix possible assertion
../src/IO/ReadBuffer.h:58: bool DB::ReadBuffer::next(): Assertion '!hasPendingData()' failed.
in TSKV format. #31804 (Kruglov Pavel). - Backported in #31910: Fix functions
empty
andnotEmpty
with arguments ofUUID
type. Fixes #31819. #31883 (Anton Popov).
NOT FOR CHANGELOG / INSIGNIFICANT
- Support toUInt8/toInt8 for if constant condition optimization. #31866 (Nikolai Kochetov).