Issues

• show placement may return error "Table with ID not found"

  severity/moderatesig/sql-infratype/bug
  pingcap/tidb#72080 · Filter by author lance6716 opened on Oct 17, 2026
  2

• Flaky test: TestDropIndexNeededInForeignKey2 in pkg/ddl

  component/testflaky-testtype/enhancement
  pingcap/tidb#72079 · Filter by author ti-chi-bot opened on Oct 17, 2026

• Track TiDB-side compatibility issues of table affinity

  component/ddlsig/sql-infratype/enhancement
  pingcap/tidb#72071 · Filter by author JmPotato opened on Oct 16, 2026

• br, lightning: handle skipped scatter for affinity tables during import

  component/brcomponent/importcomponent/lightningtype/enhancement
  pingcap/tidb#72070 · Filter by author JmPotato opened on Oct 16, 2026

• executor: reject or warn on DISTRIBUTE TABLE for tables with affinity

  component/executorseverity/moderatetype/bug
  pingcap/tidb#72069 · Filter by author JmPotato opened on Oct 16, 2026
  2

• ddl: materialized view cutover deletes an affinity group unconditionally

  component/ddlcomponent/mviewseverity/moderatesig/sql-infratype/bug
  pingcap/tidb#72068 · Filter by author JmPotato opened on Oct 16, 2026
  2

• ddl: gate affinity DDL until all TiDB instances support it

  component/ddlmay-affects-7.5may-affects-8.1may-affects-8.5may-affects-25.10may-affects-26.3may-affects-26.9severity/majorsig/sql-infratype/bugtype/compatibility
  pingcap/tidb#72067 · Filter by author JmPotato opened on Oct 16, 2026
  2

• ddl: test and clarify placement policy combined with affinity

  component/ddlsig/sql-infratype/enhancement
  pingcap/tidb#72066 · Filter by author JmPotato opened on Oct 16, 2026

• ddl: support ADD PARTITION and DROP PARTITION on tables with affinity

  component/ddlcomponent/tablepartitionsig/sql-infratype/enhancement
  pingcap/tidb#72065 · Filter by author JmPotato opened on Oct 16, 2026

• ddl: affinity DDL succeeds without creating groups when PD returns 404

  component/ddlmay-affects-7.5may-affects-8.1may-affects-8.5may-affects-25.10may-affects-26.3may-affects-26.9severity/majorsig/sql-infratype/bug
  pingcap/tidb#72064 · Filter by author JmPotato opened on Oct 16, 2026
  2

• ddl: TRUNCATE TABLE leaves PD side effects behind when affinity group creation fails

  component/ddlseverity/moderatesig/sql-infratype/bug
  pingcap/tidb#72063 · Filter by author JmPotato opened on Oct 16, 2026
  2

• ddl: TRUNCATE PARTITION is cancelled after the point of no return when affinity group creation fails

  component/ddlmay-affects-7.5may-affects-8.1may-affects-8.5may-affects-25.10may-affects-26.3may-affects-26.9severity/majorsig/sql-infratype/bug
  pingcap/tidb#72062 · Filter by author JmPotato opened on Oct 16, 2026
  2

• ddl: garbage-collect and reconcile affinity groups in PD

  component/ddlsig/sql-infratype/enhancement
  pingcap/tidb#72061 · Filter by author JmPotato opened on Oct 16, 2026

• br: PITR log restore does not create affinity groups

  component/brmay-affects-7.5may-affects-8.1may-affects-8.5may-affects-25.10may-affects-26.3may-affects-26.9severity/majortype/bug
  pingcap/tidb#72060 · Filter by author JmPotato opened on Oct 16, 2026
  2

• br: snapshot restore leaves orphaned affinity groups when a batch create fails

  component/brseverity/moderatetype/bug
  pingcap/tidb#72059 · Filter by author JmPotato opened on Oct 16, 2026
  2

• ddl: FLASHBACK CLUSTER leaves affinity groups inconsistent with restored metadata

  component/ddlseverity/moderatesig/sql-infratype/bug
  pingcap/tidb#72058 · Filter by author JmPotato opened on Oct 16, 2026
  2

• ddl: RECOVER / FLASHBACK TABLE / FLASHBACK DATABASE do not restore affinity groups

  component/ddlseverity/moderatesig/sql-infratype/bug
  pingcap/tidb#72057 · Filter by author JmPotato opened on Oct 16, 2026
  2

• Session-state restoration can change collations, isolation settings, and read timestamps

  component/charsetcomponent/sessionmay-affects-7.5may-affects-8.1may-affects-8.5may-affects-25.10may-affects-26.3may-affects-26.9severity/majortype/bug
  pingcap/tidb#72049 · Filter by author joechenrh opened on Oct 16, 2026

• Flaky test: TestLockUnchangedUniqueKeys in pkg/executor

  component/testflaky-testtype/enhancement
  pingcap/tidb#72040 · Filter by author ti-chi-bot opened on Oct 16, 2026

• REGEXP_INSTR/REGEXP_SUBSTR/REGEXP_REPLACE treat an occurrence of 2^63 or more as occurrence 1

  contributionmay-affects-7.5may-affects-8.1may-affects-8.5may-affects-25.10may-affects-26.3may-affects-26.9severity/majorsig/executiontype/bug
  pingcap/tidb#72038 · Filter by author hanke580 opened on Oct 15, 2026
  2

• EXPORT_SET() never reports bit 63 as set: EXPORT_SET(18446744073709551615,'Y','N','') ends in 'N'

  contributionmay-affects-7.5may-affects-8.1may-affects-8.5may-affects-25.10may-affects-26.3may-affects-26.9severity/majorsig/executiontype/bug
  pingcap/tidb#72037 · Filter by author hanke580 opened on Oct 15, 2026
  2

• planner: join reorder through projection re-evaluates RAND and returns rows violating join equality

  affects-9.0component/expressionplanner/join-orderseverity/moderatesig/plannertype/bug
  pingcap/tidb#72032 · Filter by author winoros opened on Oct 15, 2026

• planner: support join reorder through Projection in the advanced join reorder implementation

  planner/join-ordersig/plannertype/enhancement
  pingcap/tidb#72031 · Filter by author winoros opened on Oct 15, 2026

• SELECT ... FOR UPDATE OF on a partitioned table locks no rows

  affects-7.5affects-8.1affects-8.5affects-9.0component/tablepartitionmay-affects-25.10may-affects-26.3may-affects-26.9severity/majorsig/plannersig/transactiontype/bug
  pingcap/tidb#72025 · Filter by author mjonss opened on Oct 15, 2026

• SELECT ... FOR UPDATE on a self-join of a partitioned table locks only one alias's row when the aliases read different partitions

  affects-7.5affects-8.1affects-8.5affects-9.0component/tablepartitionmay-affects-25.10may-affects-26.3may-affects-26.9severity/majorsig/plannersig/transactiontype/bug
  pingcap/tidb#72024 · Filter by author mjonss opened on Oct 15, 2026