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ddl: flaky TiFlash replica test <code>TestInfoSchemaForTiFlashReplica</code> &amp; <code>TestSetTiFlashReplicaForTemporaryTable</code>

affects-8.5This bug affects the 8.5.x(LTS) versions.This bug affects the 8.5.x(LTS) versions.

component/ddlThis issue is related to DDL of TiDB.This issue is related to DDL of TiDB.

severity/major

type/bugThe issue is confirmed as a bug.The issue is confirmed as a bug.

Status: Open.

#66287 In pingcap/tidb;

· bb7133 opened on Feb 15, 2026

show affinity does not display affinity tables after TiDB restart

affects-8.5This bug affects the 8.5.x(LTS) versions.This bug affects the 8.5.x(LTS) versions.

component/pd

may-affects-6.5

may-affects-7.1

may-affects-7.5

may-affects-8.1

severity/major

type/bugThe issue is confirmed as a bug.The issue is confirmed as a bug.

Status: Open.

#66284 In pingcap/tidb;

· lcwangchao opened on Feb 14, 2026

br: --backupts accepts future timestamps without validation

type/bugThe issue is confirmed as a bug.The issue is confirmed as a bug.

Status: Open.

#66280 In pingcap/tidb;

· RidRisR opened on Feb 14, 2026

BR: Add comprehensive CLI parameter validation

type/enhancementThe issue or PR belongs to an enhancement.The issue or PR belongs to an enhancement.

Status: Open.

#66279 In pingcap/tidb;

· RidRisR opened on Feb 14, 2026

Wrong Result: Inconsistent evaluation of EXISTS and Bitwise NOT when moved from WHERE clause to a Derived Table projection.

contributionThis PR is from a community contributor.This PR is from a community contributor.

type/bugThe issue is confirmed as a bug.The issue is confirmed as a bug.

Status: Open.

#66277 In pingcap/tidb;

· Manuel-Neuer1 opened on Feb 14, 2026

planner/executor: internal missing-column error with JOIN ... USING + qualified column predicate

AI-Testing

fuzz/shiro

severity/major

sig/plannerSIG: PlannerSIG: Planner

type/bugThe issue is confirmed as a bug.The issue is confirmed as a bug.

Status: Open.

#66272 In pingcap/tidb;

· hawkingrei opened on Feb 14, 2026

Inconsistency in ATAN2(y, x) results between TiDB and TiKV when x is signed zero

contributionThis PR is from a community contributor.This PR is from a community contributor.

type/bugThe issue is confirmed as a bug.The issue is confirmed as a bug.

Status: Open.

#66270 In pingcap/tidb;

· Manuel-Neuer1 opened on Feb 13, 2026

planner: nil pointer dereference in PointGetPlan.CloneForPlanCache when executing prepared statement on composite unique index

contributionThis PR is from a community contributor.This PR is from a community contributor.

first-time-contributorIndicates that the PR was contributed by an external member and is a first-time contributor.Indicates that the PR was contributed by an external member and is a first-time contributor.

type/bugThe issue is confirmed as a bug.The issue is confirmed as a bug.

Status: Open.

#66265 In pingcap/tidb;

· HubertusWine opened on Feb 13, 2026

Migrate dashboards to Grafana Foundation SDK

contributionThis PR is from a community contributor.This PR is from a community contributor.

first-time-contributorIndicates that the PR was contributed by an external member and is a first-time contributor.Indicates that the PR was contributed by an external member and is a first-time contributor.

type/enhancementThe issue or PR belongs to an enhancement.The issue or PR belongs to an enhancement.

Status: Open.

#66261 In pingcap/tidb;

· SuperQ opened on Feb 13, 2026

runtime error: index out of range on ANY subquery predicate

AI-Testing

fuzz/shiro

severity/major

severity/moderate

sig/plannerSIG: PlannerSIG: Planner

Status: Open.

#66259 In pingcap/tidb;

· hawkingrei opened on Feb 13, 2026

[Compatibility] <code>ON DUPLICATE KEY UPDATE</code> clause causes <code>INSERT IGNORE</code> to fail on Foreign Key violation

contributionThis PR is from a community contributor.This PR is from a community contributor.

type/bugThe issue is confirmed as a bug.The issue is confirmed as a bug.

Status: Open.

#66258 In pingcap/tidb;

· cryo-zd opened on Feb 13, 2026

flashback get history <code>tidb_server_version</code> failed

component/ddlThis issue is related to DDL of TiDB.This issue is related to DDL of TiDB.

contributionThis PR is from a community contributor.This PR is from a community contributor.

may-affects-6.5

may-affects-7.1

may-affects-7.5

may-affects-8.1

may-affects-8.5

severity/major

type/bugThe issue is confirmed as a bug.The issue is confirmed as a bug.

Status: Open.

#66257 In pingcap/tidb;

· apollodafoni opened on Feb 13, 2026