Project: ClickHouse (App Definition and Development / Database)
File: v21.9.6.24-stable.md

sidebar_position: 1 sidebar_label: 2022 Backported in : CompiledExpressionCache limit elements size using `compiledexpressioncacheelementssize` setting. (). Backported in : Improve performance of JSON and XML output formats. (). Backported in : Allow symlinks to files in user_files directory for file table function. (). Backported in : Fix reading from empty file on encrypted disk. (). Backported in : Fix SHOW GRANTS when partial revokes are used. This PR fixes . (). Backported in : Quota limit was not reached, but the limit was exceeded. This PR fixes . (). Backported in : Fix `ORDER BY ... WITH FILL` with set `TO` and `FROM` and no rows in result set. (). Backported in : Fix "Column is not under aggregate function and not in GROUP BY" with PREWHERE (Fixes: ). (). Backported in : Fix bad optimizations of ORDER BY if it contains WITH FILL. This closes . This closes . (). Backported in : Fix hanging DDL queries on Replicated database while adding a new replica. (). Backported in : Fixed incorrect behaviour of setting `materializedpostgresqltables_list` at server restart. Found in . (). Backported in : Support nullable arguments in function `initializeAggregation`. (). Backported in : Fix `. (). Backported in : Fixed segfault which might happen if session expired during execution of REPLACE PARTITION. (). Backported in : Fix deadlock on ALTER with scalar subquery to the same table, close . (). Backported in : Limit push down optimization could cause a error `Cannot find column`. Fixes . (). Backported in : Functions for case-insensitive search in UTF8 strings like `positionCaseInsensitiveUTF8` and `countSubstringsCaseInsensitiveUTF8` might find substrings that actually does not match, it's fixed. (). Backported in : Fix PREWHERE with WHERE in case of always true PREWHERE. (). Backported in : Fixed a race condition between `REPLACE/MOVE PARTITION` and background merge in non-replicated `MergeTree` that might cause a part of moved/replaced data to remain in partition. Fixes . (). Backported in : Fixed ambiguity when extracting auxiliary ZooKeeper name from ZooKeeper path in `ReplicatedMergeTree`. Previously server might fail to start with `Unknown auxiliary ZooKeeper name` if ZooKeeper path contains a colon. Fixes . Also it was allowed to specify ZooKeeper path that does not start with slash, but now it's deprecated and creation of new tables with such path is not allowed. Slashes and colons in auxiliary ZooKeeper names are not allowed too. (). Backported in : Fix set index not used in AND/OR expressions when there are more than two

This fixes . (). Backported in : Fix some corner cases with intersect/except. Closes . (). Backported in : Skip maxpartitionsizetodrop check in case of ATTACH PARTITION ... FROM and MOVE PARTITION ... (). Backported in : Using `formatRow` function with not row formats led to segfault. Don't allow to use this function with such formats (because it doesn't make sense). (). Backported in : Fix JSONValue/Query with quoted identifiers. This allows to have spaces in json path. Closes . (). Backported in : Fix abort in debug server and `DB::Exception: std::outofrange: basic_string` error in release server in case of bad hdfs url by adding additional check of hdfs url structure. (). Backported in : Fix StorageMerge with aliases and where (it did not work before at all). Closes . (). Backported in : 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. (). Backported in : Remove not like function into RPNElement. (). Backported in : Resolve `nullptr` in STS credentials provider for S3. (). Backported in : Disable `partialmergejoinlefttablebufferbytes` before bug in this optimization is fixed. See ). * Remove redundant option `partialmergejoin_optimizations`. (). Backported in : Fix invalid generated JSON when only column names contain invalid UTF-8 sequences. (). Backported in : `RENAME TABLE` query worked incorrectly on attempt to rename an DDL dictionary in `Ordinary` database, it's fixed. (). Backported in : Settings `inputformatallowerrorsnum` and `inputformatallowerrorsratio` did not work for parsing of domain types, such as `IPv4`, it's fixed. Fixes . (). Backported in : Fixed `there are no such cluster here` error on execution of `ON CLUSTER` query if specified cluster name is name of `Replicated` database. (). Backported in : Fix race in JSONEachRowWithProgress output format when data and lines with progress are mixed in output. (). Backported in : Fix usage of `Buffer` table engine with type `Map`. Fixes . (). Backported in : Fix possible assertion `../src/IO/ReadBuffer.h:58: bool DB::ReadBuffer::next(): Assertion '!hasPendingData()' failed.` in TSKV format. (). Backported in : Fix invalid cast of nullable type when nullable primary key is used. This fixes . (). Backported in : Fix a bug about function transform with decimal args. (). Backported in : Fix functions `empty` and `notEmpty` with arguments of `UUID` type. Fixes . (). AddDefaultDatabaseVisitor support dictGet (). StorageDictionary fix potential configuration race (). BloomFilter index check fix (). Support toUInt8/toInt8 for if constant condition optimization. ().