Search results

Support rank topn

type/feature-requestCategorizes issue or PR as related to a new feature.Categorizes issue or PR as related to a new feature.

Status: Open.

#66338 In pingcap/tidb;

· xzhangxian1008 opened on Feb 24, 2026

statistics: change SampleItem.Value from pointer to value type

Status: Open.

#66335 In pingcap/tidb;

· mjonss opened on Feb 23, 2026

Try to improve the performance of parser

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

Status: Open.

#66332 In pingcap/tidb;

· bb7133 opened on Feb 23, 2026

the CAST (0 AS DATE) return a datetime value

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.

#66324 In pingcap/tidb;

· chen8908917 opened on Feb 21, 2026

after changing NULLIF function ,SET value unexpectedly change

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.

#66323 In pingcap/tidb;

· chen8908917 opened on Feb 21, 2026

after changing NULLIF function,the value unexpectedly become defferent

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.

#66322 In pingcap/tidb;

· chen8908917 opened on Feb 21, 2026

Planner: correlate a non-correlated IN subquery

severity/moderate

sig/plannerSIG: PlannerSIG: Planner

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

Status: Open.

#66320 In pingcap/tidb;

· terry1purcell opened on Feb 21, 2026

INSERT skips VARCHAR/CHAR length truncation when charset validation fires (utf8mb4 into utf8, non-strict mode)

Status: Open.

#66319 In pingcap/tidb;

· alastori opened on Feb 20, 2026

Import Into: potential regression after #62419 removed coarse split/scatter for large IMPORT INTO

component/DXFDistributed eXecute Framework of tidbDistributed eXecute Framework of tidb

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

Status: Open.

#66311 In pingcap/tidb;

· OliverS929 opened on Feb 19, 2026

Short circuit CONSTRAINTS not being true in WHERE clause

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

Status: Open.

#66309 In pingcap/tidb;

· mjonss opened on Feb 18, 2026

SHOW STATS_TOPN and SHOW STATS_BUCKETS does not display the actual values correctly for [VAR]CHAR types

severity/moderate

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

Status: Open.

#66307 In pingcap/tidb;

· mjonss opened on Feb 18, 2026

Consolidate single column index stats with column stats

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

Status: Open.

#66306 In pingcap/tidb;

· mjonss opened on Feb 18, 2026