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15 lines
1.5 KiB
Markdown
15 lines
1.5 KiB
Markdown
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sidebar_position: 1
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sidebar_label: 2022
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---
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# 2022 Changelog
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### ClickHouse release v21.5.4.6-prestable FIXME as compared to v21.5.3.1-prestable
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#### Bug Fix
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* Backported in [#23972](https://github.com/ClickHouse/ClickHouse/issues/23972): Fixed a bug in recovery of staled `ReplicatedMergeTree` replica. Some metadata updates could be ignored by staled replica if `ALTER` query was executed during downtime of the replica. [#23742](https://github.com/ClickHouse/ClickHouse/pull/23742) ([Alexander Tokmakov](https://github.com/tavplubix)).
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* Backported in [#23956](https://github.com/ClickHouse/ClickHouse/issues/23956): Fix keys metrics accounting for CACHE() dictionary with duplicates in the source (leads to `DictCacheKeysRequestedMiss` overflows). [#23929](https://github.com/ClickHouse/ClickHouse/pull/23929) ([Azat Khuzhin](https://github.com/azat)).
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* Backported in [#24001](https://github.com/ClickHouse/ClickHouse/issues/24001): Fix SIGSEGV for external GROUP BY and overflow row (i.e. queries like `SELECT FROM GROUP BY WITH TOTALS SETTINGS max_bytes_before_external_group_by>0, max_rows_to_group_by>0, group_by_overflow_mode='any', totals_mode='before_having'`). [#23962](https://github.com/ClickHouse/ClickHouse/pull/23962) ([Azat Khuzhin](https://github.com/azat)).
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* Backported in [#24033](https://github.com/ClickHouse/ClickHouse/issues/24033): Fix crash in MergeJoin, close [#24010](https://github.com/ClickHouse/ClickHouse/issues/24010). [#24013](https://github.com/ClickHouse/ClickHouse/pull/24013) ([Vladimir C](https://github.com/vdimir)).
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