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support dump plan replayer for prepare stmt

sig/plannerSIG: PlannerSIG: Planner

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

Status: Open.

#64205 In pingcap/tidb;

· guo-shaoge opened on Oct 31, 2025

Optimize the plan selection logic for LIMIT and TopN

sig/plannerSIG: PlannerSIG: Planner

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

Status: Open.

#64181 In pingcap/tidb;

· guo-shaoge opened on Oct 29, 2025

suboptimal plan for mpp semi-join

sig/plannerSIG: PlannerSIG: Planner

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

Status: Open.

#64118 In pingcap/tidb;

· guo-shaoge opened on Oct 24, 2025

plan changed unexpectedly because expression index wasn't chosen by default

severity/major

sig/plannerSIG: PlannerSIG: Planner

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

Status: Open.

#63985 In pingcap/tidb;

· guo-shaoge opened on Oct 16, 2025

read_from_storage(tiflash[v1]) hint doesn't work

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.

#63620 In pingcap/tidb;

· guo-shaoge opened on Sep 19, 2025

redundant selection operator when <code>between and</code> expression is used for datetime column

sig/plannerSIG: PlannerSIG: Planner

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

Status: Open.

#63039 In pingcap/tidb;

· guo-shaoge opened on Aug 18, 2025

planner support NullAware-LeftOuterSemi Join for tiflash

sig/plannerSIG: PlannerSIG: Planner

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

Status: Open.

#62957 In pingcap/tidb;

· guo-shaoge opened on Aug 13, 2025

tidb report error: [tikv:8141]assertion failed

may-affects-6.5

may-affects-7.1

may-affects-7.5

may-affects-8.1

may-affects-8.5

severity/critical

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

Status: Open.

#62318 In pingcap/tidb;

· guo-shaoge opened on Jul 9, 2025

Add RU usage for AP query

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

Status: Open.

#61262 In pingcap/tidb;

· guo-shaoge opened on May 22, 2025

GeneratedColumn flag is missed when push down table scan to tiflash for partition table

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

severity/major

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

type/regression

Status: Open.

#59831 In pingcap/tidb;

· guo-shaoge opened on Feb 28, 2025

tidb_enforce_mpp doesn't work when keep order is true for table scan

affects-6.5This bug affects the 6.5.x(LTS) versions.This bug affects the 6.5.x(LTS) versions.

affects-7.1This bug affects the 7.1.x(LTS) versions.This bug affects the 7.1.x(LTS) versions.

component/tiflash

impact/func-failure

report/customerCustomers have encountered this bug.Customers have encountered this bug.

severity/major

sig/plannerSIG: PlannerSIG: Planner

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

Status: Open.

#54968 In pingcap/tidb;

· guo-shaoge opened on Jul 26, 2024

Refine memory usage of RowContainer

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

Status: Open.

#54294 In pingcap/tidb;

· guo-shaoge opened on Jun 28, 2024