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system-variables: add optimizer cost factors

do-not-merge/holdIndicates that a PR should not merge because someone has issued a /hold command.Indicates that a PR should not merge because someone has issued a /hold command.

needs-cherry-pick-release-8.5Should cherry pick this PR to release-8.5 branch.Should cherry pick this PR to release-8.5 branch.

size/LDenotes a PR that changes 100-499 lines, ignoring generated files.Denotes a PR that changes 100-499 lines, ignoring generated files.

translation/from-docsThis PR is translated from a PR in pingcap/docs.This PR is translated from a PR in pingcap/docs.

type/compatibility-or-feature-changeThis PR involves compatibility changes or feature behavior changes.This PR involves compatibility changes or feature behavior changes.

v9.0-beta.2This PR/issue applies to TiDB v9.0-beta.2.This PR/issue applies to TiDB v9.0-beta.2.

Status: Open (in progress).

pingcap/docs-cnnumber 20667

#20667 In pingcap/docs-cn;

· Oreoxmt opened on Jul 16, 2025

v8.5.3: add release notes

do-not-merge/holdIndicates that a PR should not merge because someone has issued a /hold command.Indicates that a PR should not merge because someone has issued a /hold command.

needs-cherry-pick-release-8.5Should cherry pick this PR to release-8.5 branch.Should cherry pick this PR to release-8.5 branch.

size/LDenotes a PR that changes 100-499 lines, ignoring generated files.Denotes a PR that changes 100-499 lines, ignoring generated files.

translation/doingThis PR’s assignee is translating this PR.This PR’s assignee is translating this PR.

Status: Open (in progress).

pingcap/docs-cnnumber 20662

#20662 In pingcap/docs-cn;

· Oreoxmt opened on Jul 15, 2025

[DNM until v8.1.3] tikv: add new dynamic configure for flow-control (#18540)

do-not-merge/holdIndicates that a PR should not merge because someone has issued a /hold command.Indicates that a PR should not merge because someone has issued a /hold command.

for-releaseThis PR relates to a TiDB release but does not have a tracked feature.This PR relates to a TiDB release but does not have a tracked feature.

lgtm

size/XSDenotes a PR that changes 0-9 lines, ignoring generated files.Denotes a PR that changes 0-9 lines, ignoring generated files.

type/cherry-pick-for-release-8.1This PR is cherry-picked to release-8.1 from a source PR.This PR is cherry-picked to release-8.1 from a source PR.

v8.4This PR/issue applies to TiDB v8.4.This PR/issue applies to TiDB v8.4.

Status: Open (in progress).

pingcap/docs-cnnumber 20643

#20643 In pingcap/docs-cn;

· ti-chi-bot opened on Jul 10, 2025

develop: add "formerly Serverless" for Starter

area/developThis PR relates to the area of TiDB App development.This PR relates to the area of TiDB App development.

area/tidb-cloud

do-not-merge/holdIndicates that a PR should not merge because someone has issued a /hold command.Indicates that a PR should not merge because someone has issued a /hold command.

lgtm

needs-1-more-lgtmIndicates a PR needs 1 more LGTM.Indicates a PR needs 1 more LGTM.

needs-cherry-pick-release-7.5Should cherry pick this PR to release-7.5 branch.Should cherry pick this PR to release-7.5 branch.

needs-cherry-pick-release-8.1Should cherry pick this PR to release-8.1 branch.Should cherry pick this PR to release-8.1 branch.

needs-cherry-pick-release-8.5Should cherry pick this PR to release-8.5 branch.Should cherry pick this PR to release-8.5 branch.

rename-serverlessThis PR is caused by renaming TiDB Cloud Serverless.This PR is caused by renaming TiDB Cloud Serverless.

size/XSDenotes a PR that changes 0-9 lines, ignoring generated files.Denotes a PR that changes 0-9 lines, ignoring generated files.

translation/doneThis PR has been translated from English into Chinese and updated to pingcap/docs-cn in a PR.This PR has been translated from English into Chinese and updated to pingcap/docs-cn in a PR.

Status: Open (in progress).

pingcap/docs-cnnumber 20640

#20640 In pingcap/docs-cn;

· lilin90 opened on Jul 10, 2025

tikv: add new dynamic configure for flow-control (#18540)

do-not-merge/holdIndicates that a PR should not merge because someone has issued a /hold command.Indicates that a PR should not merge because someone has issued a /hold command.

for-releaseThis PR relates to a TiDB release but does not have a tracked feature.This PR relates to a TiDB release but does not have a tracked feature.

lgtm

size/XSDenotes a PR that changes 0-9 lines, ignoring generated files.Denotes a PR that changes 0-9 lines, ignoring generated files.

type/cherry-pick-for-release-7.5This PR is cherry-picked to release-7.5 from a source PR.This PR is cherry-picked to release-7.5 from a source PR.

v8.4This PR/issue applies to TiDB v8.4.This PR/issue applies to TiDB v8.4.

Status: Open (in progress).

pingcap/docs-cnnumber 20639

#20639 In pingcap/docs-cn;

· ti-chi-bot opened on Jul 10, 2025

develop: update serverless to starter

area/developThis PR relates to the area of TiDB App development.This PR relates to the area of TiDB App development.

area/tidb-cloud

do-not-merge/holdIndicates that a PR should not merge because someone has issued a /hold command.Indicates that a PR should not merge because someone has issued a /hold command.

lgtm

needs-1-more-lgtmIndicates a PR needs 1 more LGTM.Indicates a PR needs 1 more LGTM.

needs-cherry-pick-release-7.5Should cherry pick this PR to release-7.5 branch.Should cherry pick this PR to release-7.5 branch.

needs-cherry-pick-release-8.1Should cherry pick this PR to release-8.1 branch.Should cherry pick this PR to release-8.1 branch.

needs-cherry-pick-release-8.5Should cherry pick this PR to release-8.5 branch.Should cherry pick this PR to release-8.5 branch.

rename-serverlessThis PR is caused by renaming TiDB Cloud Serverless.This PR is caused by renaming TiDB Cloud Serverless.

size/XSDenotes a PR that changes 0-9 lines, ignoring generated files.Denotes a PR that changes 0-9 lines, ignoring generated files.

translation/doneThis PR has been translated from English into Chinese and updated to pingcap/docs-cn in a PR.This PR has been translated from English into Chinese and updated to pingcap/docs-cn in a PR.

Status: Open (in progress).

pingcap/docs-cnnumber 20635

#20635 In pingcap/docs-cn;

· lilin90 opened on Jul 9, 2025

telemetry: update telemetry related doc files

do-not-merge/holdIndicates that a PR should not merge because someone has issued a /hold command.Indicates that a PR should not merge because someone has issued a /hold command.

lgtm

needs-cherry-pick-release-8.5Should cherry pick this PR to release-8.5 branch.Should cherry pick this PR to release-8.5 branch.

size/MDenotes a PR that changes 30-99 lines, ignoring generated files.Denotes a PR that changes 30-99 lines, ignoring generated files.

translation/doingThis PR’s assignee is translating this PR.This PR’s assignee is translating this PR.

type/compatibility-or-feature-changeThis PR involves compatibility changes or feature behavior changes.This PR involves compatibility changes or feature behavior changes.

Status: Open (in progress).

pingcap/docs-cnnumber 20556

#20556 In pingcap/docs-cn;

· Defined2014 opened on Jun 25, 2025

charset: update deal with invalid utf8 characters

do-not-merge/holdIndicates that a PR should not merge because someone has issued a /hold command.Indicates that a PR should not merge because someone has issued a /hold command.

for-releaseThis PR relates to a TiDB release but does not have a tracked feature.This PR relates to a TiDB release but does not have a tracked feature.

size/SDenotes a PR that changes 10-29 lines, ignoring generated files.Denotes a PR that changes 10-29 lines, ignoring generated files.

translation/doingThis PR’s assignee is translating this PR.This PR’s assignee is translating this PR.

v9.0-beta.2This PR/issue applies to TiDB v9.0-beta.2.This PR/issue applies to TiDB v9.0-beta.2.

Status: Open (in progress).

pingcap/docs-cnnumber 20555

#20555 In pingcap/docs-cn;

· Defined2014 opened on Jun 25, 2025

feat: add docs about tidb cloud

area/developThis PR relates to the area of TiDB App development.This PR relates to the area of TiDB App development.

do-not-merge/holdIndicates that a PR should not merge because someone has issued a /hold command.Indicates that a PR should not merge because someone has issued a /hold command.

size/XXLDenotes a PR that changes 1000+ lines, ignoring generated files.Denotes a PR that changes 1000+ lines, ignoring generated files.

translation/no-needNo need to translate this PR.No need to translate this PR.

Status: Open (in progress).

pingcap/docs-cnnumber 20529

#20529 In pingcap/docs-cn;

· zoubingwu opened on Jun 19, 2025

v9.0.0 release notes: add new features (v9.0-beta.2)

do-not-merge/holdIndicates that a PR should not merge because someone has issued a /hold command.Indicates that a PR should not merge because someone has issued a /hold command.

needs-1-more-lgtmIndicates a PR needs 1 more LGTM.Indicates a PR needs 1 more LGTM.

size/LDenotes a PR that changes 100-499 lines, ignoring generated files.Denotes a PR that changes 100-499 lines, ignoring generated files.

translation/doingThis PR’s assignee is translating this PR.This PR’s assignee is translating this PR.

v9.0-beta.2This PR/issue applies to TiDB v9.0-beta.2.This PR/issue applies to TiDB v9.0-beta.2.

Status: Open (in progress).

pingcap/docs-cnnumber 20468

#20468 In pingcap/docs-cn;

· Oreoxmt opened on Jun 5, 2025

br: pitr filter feature release doc

do-not-merge/holdIndicates that a PR should not merge because someone has issued a /hold command.Indicates that a PR should not merge because someone has issued a /hold command.

lgtm

size/LDenotes a PR that changes 100-499 lines, ignoring generated files.Denotes a PR that changes 100-499 lines, ignoring generated files.

translation/from-docsThis PR is translated from a PR in pingcap/docs.This PR is translated from a PR in pingcap/docs.

v9.0-beta.2This PR/issue applies to TiDB v9.0-beta.2.This PR/issue applies to TiDB v9.0-beta.2.

Status: Open (in progress).

pingcap/docs-cnnumber 20450

#20450 In pingcap/docs-cn;

· Tristan1900 opened on Jun 3, 2025

variable: tidb_enable_ts_validation

do-not-merge/holdIndicates that a PR should not merge because someone has issued a /hold command.Indicates that a PR should not merge because someone has issued a /hold command.

missing-translation-statusThis PR does not have translation status info.This PR does not have translation status info.

size/XSDenotes a PR that changes 0-9 lines, ignoring generated files.Denotes a PR that changes 0-9 lines, ignoring generated files.

Status: Open (in progress).

pingcap/docs-cnnumber 20357

#20357 In pingcap/docs-cn;

· ekexium opened on May 21, 2025