charset: full collations support for TiDB #14573
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I have high expectations for support utf8_general_ci |
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Close this issue since it has been done, please see https://github.com/pingcap/tidb/projects/33 for more details. |
SunRunAway
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Since @wjhuang2016 has contributed a lot to sig-exec, according to sig-exec [roles-and-organization-management.md#promotion](https://github.com/pingcap/community/blob/master/special-interest-groups/sig-exec/roles-and-organization-management.md#from-reviewer-to-committer), we would like to promote him to our new committer, and his detailed contribution is shown below: contribute [30 PRs](https://github.com/pingcap/tidb/pulls?q=is%3Apr+author%3Awjhuang2016+label%3Asig%2Fexecution) to the executor, support the [expression index](pingcap/tidb#18008) (a medium task) support the [new collation](pingcap/tidb#14573) (a hard task) help other contributors and review [150+](https://github.com/pingcap/tidb/pulls?q=is%3Apr+reviewed-by%3Awjhuang2016+-author%3Awjhuang2016+label%3Asig%2Fexecution) PRs. Thanks for his contribution!!
ti-chi-bot
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Dec 3, 2020
Since @wjhuang2016 has contributed a lot to sig-exec, according to sig-exec [roles-and-organization-management.md#promotion](https://github.com/pingcap/community/blob/master/special-interest-groups/sig-exec/roles-and-organization-management.md#from-reviewer-to-committer), we would like to promote him to our new committer, and his detailed contribution is shown below: contribute [30 PRs](https://github.com/pingcap/tidb/pulls?q=is%3Apr+author%3Awjhuang2016+label%3Asig%2Fexecution) to the executor, support the [expression index](pingcap/tidb#18008) (a medium task) support the [new collation](pingcap/tidb#14573) (a hard task) help other contributors and review [150+](https://github.com/pingcap/tidb/pulls?q=is%3Apr+reviewed-by%3Awjhuang2016+-author%3Awjhuang2016+label%3Asig%2Fexecution) PRs. Thanks for his contribution!!
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Feature Request
For now, TiDB supports binary collations only, we have several issues related to this limitation:
select ... col like 'String'gets the wrong result when col is unique key. #1161Now a proposal has been landed for all other collations from MySQL:
#14574
This issue is created for the discussions of rationales/options in this proposal, please feel free to express your opinions on the collations in TiDB, thank you!
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