Project: ClickHouse (App Definition and Development / Database)
File: v21.8.11.4-lts.md

sidebar_position: 1 sidebar_label: 2022 Backported in : CompiledExpressionCache limit elements size using `compiledexpressioncacheelementssize` setting. (). Backported in : Make query, which fetched table structure for PostgreSQL database because, more reliable. (). Backported in : Fix SHOW GRANTS when partial revokes are used. This PR fixes . (). Backported in : Fix `ORDER BY ... WITH FILL` with set `TO` and `FROM` and no rows in result set. (). Backported in : Fix NOT-IN index optimization when not all key columns are used. This fixes . (). Backported in : Fix "Column is not under aggregate function and not in GROUP BY" with PREWHERE (Fixes: ). (). Backported in : Fix queries to external databases (i.e. MySQL) with multiple columns in IN ( i.e. `(k,v) IN ((1, 2))` ) (but note that this has some backward incompatibility for the `clickhouse-copier` since it uses alias for tuple element). (). 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 : Fix data-race between `LogSink::writeMarks()` and `LogSource` in `StorageLog`. (). Backported in : Support nullable arguments in function `initializeAggregation`. (). Backported in : Fix `. (). Backported in : Fix ComplexKeyHashedDictionary, ComplexKeySparseHashedDictionary parsing `preallocate` option from layout config. (). Backported in : Fixed segfault which might happen if session expired during execution of REPLACE PARTITION. (). Fix exception handling in `parallelviewprocessing`. That resolves issues / prevents crashes in some rare corner cases, when that feature is enabled and exception (like "Memory limit exceeded ...") happened in the middle of materialized view processing. (). 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 operands. This fixes . (). 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 StorageMerge with aliases and where (it did not work before at all). Closes . (). Fix assert in table function `merge` with database regexp (). AddDefaultDatabaseVisitor support dictGet (). StorageDictionary fix potential configuration race (). BloomFilter index check fix ().