2025 Changelog

ClickHouse release v25.6.13.41-stable (1f325668315) FIXME as compared to v25.6.12.10-stable (b08b830e00f)

Improvement

• Backported in #86730: Fixed error in case of executing SYSTEM DROP REPLICA against a Catalog with corrupted metadata. #86391 (Nikita Mikhaylov).
• Backported in #87427: Disable s3_slow_all_threads_after_retryable_error by default. #87198 (Nikita Mikhaylov).

Bug Fix (user-visible misbehavior in an official stable release)

• Backported in #87155: Add a check to allow correlated subqueries in the FROM clause only if they use columns from the outer query. Fixes #85469. Fixes #85402. #85966 (Dmitry Novik).
• Backported in #86953: Fix alter update of a column with a subcolumn used in other column materialized expression. Previously materialized column with subcolumn in its expression was not updated properly. #85985 (Pavel Kruglov).
• Backported in #87664: Fix detach/attach for postgres database engine tables with numeric/decimal columns. #86480 (Julian Maicher).
• Backported in #87056: Fix writing NULL into JSON shared data in RowBinary input format and add some additional validations in ColumnObject. #86812 (Pavel Kruglov).
• Backported in #87053: Fix seeking at the end of the decompressed block. #86906 (Pavel Kruglov).
• Backported in #87637: Fix result of function calculated in CTE being non-deterministic in the query. #86967 (Yakov Olkhovskiy).
• Backported in #87189: Fixed possible incorrect result of uniqExact function with ROLLUP and CUBE modifiers. #87014 (Nikita Taranov).
• Backported in #87415: EmbeddedRocksDB: Path must be inside user_files. #87109 (Raúl Marín).
• Backported in #87310: Fix KeeperMap tables created before 25.1, leaving data in ZooKeeper after the DROP query. #87112 (Nikolay Degterinsky).
• Backported in #87164: Fix reading array with array sizes subcolumn in lazy materialization. #87139 (Pavel Kruglov).
• Backported in #87636: Fixed incorrect accounting of temporary data deallocations in max_temporary_data_on_disk_size limit tracking, close #87118. #87140 (JIaQi).
• Backported in #87475: Make pathStartsWith only match paths under the prefix. #87181 (Raúl Marín).
• Backported in #87459: Fix "Too large size passed to allocator" LOGICAL_ERROR in JOIN due to mixed const and non-const blocks. #87231 (Azat Khuzhin).
• Backported in #87452: Ignore only not found errors for s3_plain_rewritable (which may lead to all sort of troubles). #87426 (Azat Khuzhin).

NO CL ENTRY

• NO CL ENTRY: 'Fix output_format_parquet_date_as_uint16 backport'. #87866 (Michael Kolupaev).

NOT FOR CHANGELOG / INSIGNIFICANT

• Backported in #87497: EmbeddedRocksDB: Go back to using data/ path by default. #87463 (Raúl Marín).