docs/changelogs/v25.11.3.54-stable.md
allow_statistics_optimize by default, so the JOINs optimizer will use column statistics. #89332 (Alexey Milovidov).Array to QBit. Integer and float arrays can now be inserted directly into QBit columns without explicit type casts. #91846 (Raufs Dunamalijevs).UNION. Fixes #88180. #88350 (Sema Checherinda).Bad get error that happened during Set index analysis in case the predicate contained NULL constant. Fixes #84856 and #82974. #89429 (Nikolai Kochetov).toDateTimeOrNull of a negative argument returns NULL. #90490 (Yarik Briukhovetskyi).LowCardinality columns in partition keys. Closes #89412. #90666 (xiaohuanlin).ALTER UPDATE queries when a remote table function is used with localhost as a target host. #90761 (pufit).serialize_string_in_memory_with_zero_byte. #90880 (Antonio Andelic).SummingMergeTree aggregation for Nested LowCardinality columns. #90927 (Ivan Babrou).CREATE USER. #90928 (pufit).ARRAY JOIN when one of the table columns is empty tuple column. Closes #90801. #91123 (Nihal Z. Miaji).A hive partitioned file can't contain only partition columns. #91403 (Kseniia Sumarokova).dictGetDescendants caused by NULL when dictionary type has Hierarchy support but no column is HIERARCHICAL. Closes #92026. Closes #92121. #91420 (Nihal Z. Miaji).QBit type failing with query parameters like SET param_q=[1,2,3,4]; SELECT {q:QBit(Float32,4)}. #91488 (Raufs Dunamalijevs).remote function. Closes #90568. #91524 (Nihal Z. Miaji).L2DistanceTransposed returning incorrect results when using non-constant reference vectors (e.g., from a table). #91517. #91593 (Raufs Dunamalijevs).delta_lake_snapshot_version which could give incorrect result when used with table engine (not table function) and value -1 (disabled) after snapshot version was used before that. Closes #87676. #91818 (Kseniia Sumarokova).midpoint function. Closes #91816. #92102 (Nihal Z. Miaji).system.view_refreshes failing with error No macro 'replica' in config. #92203 (Michael Kolupaev).ddlworker::markreplicasactive, if there is no active host found, and the remote_servers has some host_ids, we print a warning log instead of throwing an exception. #92223 (Tuan Pham Anh).Nothing type in caseWithExpression function arguments . Closes #85354. #92351 (Nihal Z. Miaji).ulimit -n setting was recently changed in the integration tests runner, and this fd leak started to become visible. #91750 (Mikhail Artemenko).optimize_skip_unused_shards optimization for Distributed engine that may lead to Serialization is not implemented for data type Set due to wrong types. #91923 (Azat Khuzhin).