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34 lines
4.0 KiB
Markdown
34 lines
4.0 KiB
Markdown
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---
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sidebar_position: 1
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sidebar_label: 2023
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---
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# 2023 Changelog
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### ClickHouse release v22.3.16.1190-lts (bb4e0934e5a) FIXME as compared to v22.10.1.1877-stable (98ab5a3c189)
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#### Improvement
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* Backported in [#42527](https://github.com/ClickHouse/ClickHouse/issues/42527): Fix issue with passing MySQL timeouts for MySQL database engine and MySQL table function. Closes [#34168](https://github.com/ClickHouse/ClickHouse/issues/34168)?notification_referrer_id=NT_kwDOAzsV57MzMDMxNjAzNTY5OjU0MjAzODc5. [#40751](https://github.com/ClickHouse/ClickHouse/pull/40751) ([Kseniia Sumarokova](https://github.com/kssenii)).
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#### Bug Fix
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* Backported in [#43829](https://github.com/ClickHouse/ClickHouse/issues/43829): Updated normaliser to clone the alias ast. resolves [#42452](https://github.com/ClickHouse/ClickHouse/issues/42452) Implementation: * Updated QueryNormalizer to clone alias ast, when its replaced. Previously just assigning the same leads to exception in LogicalExpressinsOptimizer as it would be the same parent being inserted again. * This bug is not seen with new analyser (allow_experimental_analyzer), so no changes for it. I added a test for the same. [#42827](https://github.com/ClickHouse/ClickHouse/pull/42827) ([SmitaRKulkarni](https://github.com/SmitaRKulkarni)).
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#### Build/Testing/Packaging Improvement
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* Backported in [#44109](https://github.com/ClickHouse/ClickHouse/issues/44109): Bring sha512 sums back to the building step. [#44017](https://github.com/ClickHouse/ClickHouse/pull/44017) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
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* Backported in [#44431](https://github.com/ClickHouse/ClickHouse/issues/44431): Kill stress tests after 2.5h in case of hanging process. [#44214](https://github.com/ClickHouse/ClickHouse/pull/44214) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
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* Backported in [#44557](https://github.com/ClickHouse/ClickHouse/issues/44557): Retry the integration tests on compressing errors. [#44529](https://github.com/ClickHouse/ClickHouse/pull/44529) ([Mikhail f. Shiryaev](https://github.com/Felixoid)).
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#### Bug Fix (user-visible misbehavior in official stable or prestable release)
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* Backported in [#43512](https://github.com/ClickHouse/ClickHouse/issues/43512): - Fix several buffer over-reads. [#43159](https://github.com/ClickHouse/ClickHouse/pull/43159) ([Raúl Marín](https://github.com/Algunenano)).
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* Backported in [#43750](https://github.com/ClickHouse/ClickHouse/issues/43750): An issue with the following exception has been reported while trying to read a Parquet file from S3 into ClickHouse:. [#43297](https://github.com/ClickHouse/ClickHouse/pull/43297) ([Arthur Passos](https://github.com/arthurpassos)).
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* Backported in [#43616](https://github.com/ClickHouse/ClickHouse/issues/43616): Fix sumMap() for Nullable(Decimal()). [#43414](https://github.com/ClickHouse/ClickHouse/pull/43414) ([Azat Khuzhin](https://github.com/azat)).
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* Backported in [#43885](https://github.com/ClickHouse/ClickHouse/issues/43885): Fixed `ALTER ... RESET SETTING` with `ON CLUSTER`. It could be applied to one replica only. Fixes [#43843](https://github.com/ClickHouse/ClickHouse/issues/43843). [#43848](https://github.com/ClickHouse/ClickHouse/pull/43848) ([Elena Torró](https://github.com/elenatorro)).
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* Backported in [#44179](https://github.com/ClickHouse/ClickHouse/issues/44179): Fix undefined behavior in the `quantiles` function, which might lead to uninitialized memory. Found by fuzzer. This closes [#44066](https://github.com/ClickHouse/ClickHouse/issues/44066). [#44067](https://github.com/ClickHouse/ClickHouse/pull/44067) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
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* Backported in [#44283](https://github.com/ClickHouse/ClickHouse/issues/44283): Prevent `ReadonlyReplica` metric from having negative values. [#44220](https://github.com/ClickHouse/ClickHouse/pull/44220) ([Antonio Andelic](https://github.com/antonio2368)).
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#### NO CL ENTRY
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* NO CL ENTRY: 'Fix multipart upload for large S3 object, backport to 22.3'. [#44217](https://github.com/ClickHouse/ClickHouse/pull/44217) ([ianton-ru](https://github.com/ianton-ru)).
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