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33 lines
5.0 KiB
Markdown
33 lines
5.0 KiB
Markdown
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---
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sidebar_position: 1
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sidebar_label: 2024
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---
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# 2024 Changelog
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### ClickHouse release v24.7.5.37-stable (f2533ca97be) FIXME as compared to v24.7.4.51-stable (70fe2f6fa52)
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#### Bug Fix (user-visible misbehavior in an official stable release)
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* Backported in [#68971](https://github.com/ClickHouse/ClickHouse/issues/68971): Fix the upper bound of the function `fromModifiedJulianDay`. It was supposed to be `9999-12-31` but was mistakenly set to `9999-01-01`. [#67583](https://github.com/ClickHouse/ClickHouse/pull/67583) ([PHO](https://github.com/depressed-pho)).
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* Backported in [#68816](https://github.com/ClickHouse/ClickHouse/issues/68816): Fixed crash in Parquet filtering when data types in the file substantially differ from requested types (e.g. `... FROM file('a.parquet', Parquet, 'x String')`, but the file has `x Int64`). Without this fix, use `input_format_parquet_filter_push_down = 0` as a workaround. [#68131](https://github.com/ClickHouse/ClickHouse/pull/68131) ([Michael Kolupaev](https://github.com/al13n321)).
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* Backported in [#69006](https://github.com/ClickHouse/ClickHouse/issues/69006): After https://github.com/ClickHouse/ClickHouse/pull/61984 `schema_inference_make_columns_nullable=0` still can make columns `Nullable` in Parquet/Arrow formats. The change was backward incompatible and users noticed the changes in the behaviour. This PR makes `schema_inference_make_columns_nullable=0` to work as before (no Nullable columns will be inferred) and introduces new value `auto` for this setting that will make columns `Nullable` only if data has information about nullability. [#68298](https://github.com/ClickHouse/ClickHouse/pull/68298) ([Kruglov Pavel](https://github.com/Avogar)).
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* Backported in [#68884](https://github.com/ClickHouse/ClickHouse/issues/68884): Fixes [#50868](https://github.com/ClickHouse/ClickHouse/issues/50868). Small DateTime64 constant values returned by a nested subquery inside a distributed query were wrongly transformed to Nulls, thus causing errors and possible incorrect query results. [#68323](https://github.com/ClickHouse/ClickHouse/pull/68323) ([Shankar](https://github.com/shiyer7474)).
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* Backported in [#69027](https://github.com/ClickHouse/ClickHouse/issues/69027): Added back virtual columns ` _table` and `_database` to distributed tables. They were available until version 24.3. [#68672](https://github.com/ClickHouse/ClickHouse/pull/68672) ([Anton Popov](https://github.com/CurtizJ)).
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* Backported in [#68862](https://github.com/ClickHouse/ClickHouse/issues/68862): Fix possible error `Size of permutation (0) is less than required (...)` during Variant column permutation. [#68681](https://github.com/ClickHouse/ClickHouse/pull/68681) ([Kruglov Pavel](https://github.com/Avogar)).
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* Backported in [#68788](https://github.com/ClickHouse/ClickHouse/issues/68788): Fix issue with materialized constant keys when hashing maps with arrays as keys in functions `sipHash(64/128)Keyed`. [#68731](https://github.com/ClickHouse/ClickHouse/pull/68731) ([Salvatore Mesoraca](https://github.com/aiven-sal)).
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* Backported in [#68909](https://github.com/ClickHouse/ClickHouse/issues/68909): Fix complex types metadata parsing in DeltaLake. Closes [#68739](https://github.com/ClickHouse/ClickHouse/issues/68739). [#68836](https://github.com/ClickHouse/ClickHouse/pull/68836) ([Kseniia Sumarokova](https://github.com/kssenii)).
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* Backported in [#69158](https://github.com/ClickHouse/ClickHouse/issues/69158): Fix possible wrong result during anyHeavy state merge. [#68950](https://github.com/ClickHouse/ClickHouse/pull/68950) ([Raúl Marín](https://github.com/Algunenano)).
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* Backported in [#69118](https://github.com/ClickHouse/ClickHouse/issues/69118): Fix logical error when we have empty async insert. [#69080](https://github.com/ClickHouse/ClickHouse/pull/69080) ([Han Fei](https://github.com/hanfei1991)).
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#### NO CL CATEGORY
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* Backported in [#68944](https://github.com/ClickHouse/ClickHouse/issues/68944):. [#68897](https://github.com/ClickHouse/ClickHouse/pull/68897) ([Alexander Gololobov](https://github.com/davenger)).
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#### NOT FOR CHANGELOG / INSIGNIFICANT
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* Backported in [#68832](https://github.com/ClickHouse/ClickHouse/issues/68832): Turn off fault injection for insert in `01396_inactive_replica_cleanup_nodes_zookeeper`. [#68715](https://github.com/ClickHouse/ClickHouse/pull/68715) ([alesapin](https://github.com/alesapin)).
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* Backported in [#68779](https://github.com/ClickHouse/ClickHouse/issues/68779): Fix flaky test 00989_parallel_parts_loading. [#68737](https://github.com/ClickHouse/ClickHouse/pull/68737) ([alesapin](https://github.com/alesapin)).
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* Backported in [#68960](https://github.com/ClickHouse/ClickHouse/issues/68960): Fix 2477 timeout. [#68752](https://github.com/ClickHouse/ClickHouse/pull/68752) ([jsc0218](https://github.com/jsc0218)).
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* Backported in [#69050](https://github.com/ClickHouse/ClickHouse/issues/69050): Fix 01114_database_atomic flakiness. [#68930](https://github.com/ClickHouse/ClickHouse/pull/68930) ([Raúl Marín](https://github.com/Algunenano)).
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