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traceevent,*: refine flight recorder

do-not-merge/needs-linked-issue

do-not-merge/needs-tests-checked

nextgenIndicates that the Issue or PR belongs to the nextgen kernel architecture.Indicates that the Issue or PR belongs to the nextgen kernel architecture.

release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

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

Status: Open (in progress).

pingcap/tidbnumber 64199

#64199 In pingcap/tidb;

· tiancaiamao opened on Oct 30, 2025

txn: support kv.SkipNewerChange transaction option

do-not-merge/needs-tests-checked

do-not-merge/work-in-progressIndicates that a PR should not merge because it is a work in progress.Indicates that a PR should not merge because it is a work in progress.

release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

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

Status: Draft (not ready).

pingcap/tidbnumber 63474

#63474 In pingcap/tidb;

· tiancaiamao opened on Sep 11, 2025

*: fix a bug using stale read together with autocommit=0

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.

release-noteDenotes a PR that will be considered when it comes time to generate release notes.Denotes a PR that will be considered when it comes time to generate release notes.

sig/plannerSIG: PlannerSIG: Planner

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

Status: Open (in progress).

pingcap/tidbnumber 62385

#62385 In pingcap/tidb;

· tiancaiamao opened on Jul 14, 2025

[DNM] add log for debugging

do-not-merge/invalid-title

do-not-merge/needs-linked-issue

do-not-merge/needs-tests-checked

release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

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/tidbnumber 62158

#62158 In pingcap/tidb;

· tiancaiamao opened on Jul 2, 2025

gcworker,metrics: add txn and gc safe point metrics

release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

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

Status: Open (in progress).

pingcap/tidbnumber 61856

#61856 In pingcap/tidb;

· tiancaiamao opened on Jun 19, 2025

go.mod: change go version for testing

do-not-merge/needs-linked-issue

do-not-merge/needs-tests-checked

do-not-merge/work-in-progressIndicates that a PR should not merge because it is a work in progress.Indicates that a PR should not merge because it is a work in progress.

release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

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

Status: Draft (not ready).

pingcap/tidbnumber 61751

#61751 In pingcap/tidb;

· tiancaiamao opened on Jun 16, 2025

*: continuously tracing demo branch

do-not-merge/needs-tests-checked

do-not-merge/work-in-progressIndicates that a PR should not merge because it is a work in progress.Indicates that a PR should not merge because it is a work in progress.

release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

sig/plannerSIG: PlannerSIG: Planner

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

Status: Draft (not ready).

pingcap/tidbnumber 60415

#60415 In pingcap/tidb;

· tiancaiamao opened on Apr 7, 2025

infoschema: optimize 'select count(*) from information_schema.tables'

do-not-merge/cherry-pick-not-approved

release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

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

Status: Open (in progress).

pingcap/tidbnumber 60214

#60214 In pingcap/tidb;

· tiancaiamao opened on Mar 21, 2025

executor: fix the slow log getLineIndex() function

do-not-merge/needs-linked-issue

do-not-merge/needs-tests-checked

do-not-merge/work-in-progressIndicates that a PR should not merge because it is a work in progress.Indicates that a PR should not merge because it is a work in progress.

release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

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

Status: Draft (not ready).

pingcap/tidbnumber 57727

#57727 In pingcap/tidb;

· tiancaiamao opened on Nov 26, 2024

*: revert 48447 and 49224

do-not-merge/cherry-pick-not-approved

release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

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

Status: Open (in progress).

pingcap/tidbnumber 53451

#53451 In pingcap/tidb;

· tiancaiamao opened on May 21, 2024

infoschema: fix test case table/tables TestHiddenColumn for infoschema v2

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

needs-rebaseIndicates a PR cannot be merged because it has merge conflicts with HEAD.Indicates a PR cannot be merged because it has merge conflicts with HEAD.

release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

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

Status: Open (in progress).

pingcap/tidbnumber 52014

#52014 In pingcap/tidb;

· tiancaiamao opened on Mar 22, 2024

plan,executor: predicate push down for 'show stats_meta' statement

approved

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

needs-rebaseIndicates a PR cannot be merged because it has merge conflicts with HEAD.Indicates a PR cannot be merged because it has merge conflicts with HEAD.

release-noteDenotes a PR that will be considered when it comes time to generate release notes.Denotes a PR that will be considered when it comes time to generate release notes.

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

Status: Open (in progress).

pingcap/tidbnumber 50094

#50094 In pingcap/tidb;

· tiancaiamao opened on Jan 4, 2024