CbcWestwolf

`encoding failed` when processing queries with GBK/GB18030

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## Bug Report ### What version of TiKV are you using? master ### What operating system and CPU are you using? not system related bug ### Steps to reproduce 1....

tidb: supply the description about `default_authentication_plugin`

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### What is changed, added or deleted? (Required) ### Which TiDB version(s) do your changes apply to? (Required) **Tips for choosing the affected version(s):** By default, **CHOOSE MASTER ONLY** so...

tidb: add description about GB18030

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### What is changed, added or deleted? (Required) Add description about GB18030 ### Which TiDB version(s) do your changes apply to? (Required) **Tips for choosing the affected version(s):** By default,...

executor: adapt the GRANT and REVOKE for column privilege

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### What problem does this PR solve? Issue Number: ref #61706 Problem Summary: ### What changed and how does it work? Adapt the GRANT and REVOKE for column privilege This...

*: adapt the `show columns`, `show index` and `rename` for column privilege

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### What problem does this PR solve? Issue Number: ref #61706 Problem Summary: ### What changed and how does it work? Adapt the show columns, show index and rename for...

planner: adapt the normal plan build process to collect column-level visit info | tidb-test=pr/2532

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### What problem does this PR solve? Issue Number: ref #61706 Problem Summary: ### What changed and how does it work? ### Check List Tests - [x] Unit test -...

privilege/privileges: refactor the data struct for user privilege data

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### What problem does this PR solve? Issue Number: ref #61706 Problem Summary: ### What changed and how does it work? Pick #58945 ### Check List Tests - [ ]...

infoschema: introduces privilege view in information_schema

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### What problem does this PR solve? Issue Number: ref #61706 Problem Summary: ### What changed and how does it work? ### Check List Tests - [ ] Unit test...

We split the huge https://github.com/pingcap/tidb/pull/61638 into 3 phases Phase 1 1. [P0] Adapt the `GRANT` and `REVOKE` for column privilege https://github.com/pingcap/tidb/pull/61678 2. [P1] Adapt the `MySQLPrivilege` to support column privilege...

sys var: consider global sort for `tidb_ddl_reorg_max_write_speed`

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### What is changed, added or deleted? (Required) ### Which TiDB version(s) do your changes apply to? (Required) **Tips for choosing the affected version(s):** By default, **CHOOSE MASTER ONLY** so...