releases: add TiDB 5.0 RC release notes #5189
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TomShawn
added
DNM until Ansible tag is ready
v5.0
TiKV
|
TiDBNew Features
Experimental Features
Improvements |
zanmato1984
reviewed
Dec 29, 2020
flowbehappy
reviewed
Dec 29, 2020
TomShawn
commented
Dec 30, 2020
TiCDCExperimental Features
|
HunDunDM
reviewed
Dec 30, 2020
| - 提高 Index Selection 的准确度和鲁棒性（实验特性） | ||
| - [#21817](https://github.com/pingcap/tidb/pull/21817) | ||
| - [document](https://github.com/pingcap/docs-cn/pull/5164) | ||
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Suggested change
| + PD | |
| - 支持使用 V2 版本 Region 算分公式来提升平衡调度的收敛速度和稳定性。 | |
| - [#3269](https://github.com/tikv/pd/pull/3269) | |
| - [document](https://docs.pingcap.com/zh/tidb/dev/pd-configuration-file#region-score-formula-version) | |
| - 支持错误和日志信息脱敏 | |
| - [project](https://github.com/pingcap/tidb/issues/18566) | |
| - [#2852](https://github.com/tikv/pd/issues/2852) | |
| - [document](https://docs.pingcap.com/zh/tidb/dev/pd-configuration-file#redact-info-log-%E4%BB%8E-v500-rc-%E7%89%88%E6%9C%AC%E5%BC%80%E5%A7%8B%E5%BC%95%E5%85%A5) | |
| - 支持通过 PD 处理 Split Regions 请求 [#2965](https://github.com/tikv/pd/issues/2965) | |
| - 支持使用 Joint Consensus 来进行 Region 调度。（实验特性） | |
| - [project](https://github.com/tikv/tikv/issues/7587) | |
| - [document](https://docs.pingcap.com/zh/tidb/dev/pd-configuration-file#enable-joint-consensus-%E4%BB%8E-v500-rc-%E7%89%88%E6%9C%AC%E5%BC%80%E5%A7%8B%E5%BC%95%E5%85%A5) | |
| - [document](https://docs.pingcap.com/zh/tidb/stable/sql-statement-explain-analyze#explain-analyze) | ||
| - 优化批量删除场景下的性能。 | ||
| - [issue](https://github.com/pingcap/tidb/issues/18028) | ||
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Suggested change
| + PD | |
| - 默认开启 `enable-cross-table-merge` 来减少空 Region 对集群调度的影响。 [#3129](https://github.com/tikv/pd/pull/3129) | |
| - 默认开启 Placement Rules [#3006](https://github.com/tikv/pd/pull/3006) | |
| - `pd-ctl` 的 `transfer-region` 操作支持指定 peer role。[#3047](https://github.com/tikv/pd/pull/3047) | |
TomShawn
removed
DNM until Ansible tag is ready
translation/from-docs
|
This PR is replaced by #5295. |
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add TiDB 5.0 RC release notes
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