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TiKV panic when evaluating <code>INT64_MAX % -1</code>

component/tikv

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

impact/panic

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.

#63661 In pingcap/tidb;

· r33s3n6 opened on Sep 22, 2025

Unexpected syntax error: Unknown column 'ref_0.c1' in 'where clause'

may-affects-5.4This bug maybe affects 5.4.x versions.This bug maybe affects 5.4.x versions.

may-affects-6.1

may-affects-6.5

may-affects-7.1

may-affects-7.5

may-affects-8.1

may-affects-8.5

severity/major

sig/plannerSIG: PlannerSIG: Planner

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

Status: Open.

#57594 In pingcap/tidb;

· r33s3n6 opened on Nov 21, 2024

TiDB and MySQL behave differently when <code>cast</code> big number to signed

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

may-affects-5.4This bug maybe affects 5.4.x versions.This bug maybe affects 5.4.x versions.

may-affects-6.1

may-affects-6.5

may-affects-7.1

may-affects-7.5

may-affects-8.1

severity/major

sig/executionSIG executionSIG execution

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

Status: Open.

#56642 In pingcap/tidb;

· r33s3n6 opened on Oct 14, 2024

TiKV and TiFlash behave differently when using <code>right</code> function with negative number and type conversion

impact/wrong-result

may-affects-5.4This bug maybe affects 5.4.x versions.This bug maybe affects 5.4.x versions.

may-affects-6.1

may-affects-6.5

may-affects-7.1

may-affects-7.5

may-affects-8.1

severity/moderate

sig/executionSIG executionSIG execution

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

Status: Open.

#53894 In pingcap/tidb;

· r33s3n6 opened on Jun 8, 2024

TiKV and TiFlash behave differently when performing type conversion

impact/wrong-result

may-affects-5.4This bug maybe affects 5.4.x versions.This bug maybe affects 5.4.x versions.

may-affects-6.1

may-affects-6.5

may-affects-7.1

may-affects-7.5

may-affects-8.1

severity/moderate

sig/executionSIG executionSIG execution

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

Status: Open.

#53893 In pingcap/tidb;

· r33s3n6 opened on Jun 8, 2024

<code>round</code> function on exact number produces different result from MySQL

compatibility-mysql80This is a compatibility issue with MySQL 8.0(but NOT 5.7)This is a compatibility issue with MySQL 8.0(but NOT 5.7)

impact/wrong-result

may-affects-5.4This bug maybe affects 5.4.x versions.This bug maybe affects 5.4.x versions.

may-affects-6.1

may-affects-6.5

may-affects-7.1

may-affects-7.5

may-affects-8.1

severity/moderate

sig/executionSIG executionSIG execution

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

Status: Open.

#53891 In pingcap/tidb;

· r33s3n6 opened on Jun 8, 2024

runtime error: slice bounds out of range [:33] with capacity 32 in <code>expression.(*builtinRpadUTF8Sig).vecEvalString</code>

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

impact/panic

may-affects-5.4This bug maybe affects 5.4.x versions.This bug maybe affects 5.4.x versions.

may-affects-6.1

may-affects-6.5

may-affects-7.1

may-affects-7.5

may-affects-8.1

severity/moderate

sig/executionSIG executionSIG execution

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

Status: Open.

#53797 In pingcap/tidb;

· r33s3n6 opened on Jun 4, 2024

subselect in the <code>UNION ALL</code> query may produce incorrect result

affects-8.1This bug affects the 8.1.x(LTS) versions.This bug affects the 8.1.x(LTS) versions.

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

may-affects-5.4This bug maybe affects 5.4.x versions.This bug maybe affects 5.4.x versions.

may-affects-6.1

may-affects-6.5

may-affects-7.1

may-affects-7.5

severity/major

sig/executionSIG executionSIG execution

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

Status: Open.

#52992 In pingcap/tidb;

· r33s3n6 opened on Apr 29, 2024