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planner: set an lower-bound for NDV used in out-of-range estimation for EQ conditions when the Histogram is empty | tidb-test=pr/2623 (#64139)

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Status: Merged (completed).

pingcap/tidbnumber 64221

#64221 In pingcap/tidb;

· by qw4990 was closed on Oct 31, 2025

planner: set an lower-bound for NDV used in out-of-range estimation for EQ conditions when the Histogram is empty | tidb-test=pr/2623

approved

lgtm

needs-cherry-pick-release-8.5Should cherry pick this PR to release-8.5 branch.Should cherry pick this PR to release-8.5 branch.

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Status: Merged (completed).

pingcap/tidbnumber 64139

#64139 In pingcap/tidb;

· by qw4990 was closed on Oct 31, 2025

planner: skip disabled bindings when matching bindings

approved

lgtm

needs-cherry-pick-release-8.5Should cherry pick this PR to release-8.5 branch.Should cherry pick this PR to release-8.5 branch.

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sig/plannerSIG: PlannerSIG: Planner

size/SDenotes a PR that changes 10-29 lines, ignoring generated files.Denotes a PR that changes 10-29 lines, ignoring generated files.

Status: Merged (completed).

pingcap/tidbnumber 64072

#64072 In pingcap/tidb;

· by qw4990 was closed on Oct 21, 2025

planner: integrate Skyline Pruning into index selection of IndexJoin | tidb-test=pr/2619

approved

lgtm

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release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

sig/plannerSIG: PlannerSIG: Planner

size/MDenotes a PR that changes 30-99 lines, ignoring generated files.Denotes a PR that changes 30-99 lines, ignoring generated files.

Status: Merged (completed).

pingcap/tidbnumber 63958

#63958 In pingcap/tidb;

· by qw4990 was closed on Oct 31, 2025

planner: use the original table stats to estimate NDV for index selection of IndexJoin

approved

lgtm

release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

sig/plannerSIG: PlannerSIG: Planner

size/MDenotes a PR that changes 30-99 lines, ignoring generated files.Denotes a PR that changes 30-99 lines, ignoring generated files.

Status: Merged (completed).

pingcap/tidbnumber 63892

#63892 In pingcap/tidb;

· by qw4990 was closed on Oct 14, 2025

planner: remove code of the hint nth_plan - 1

approved

lgtm

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release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

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size/XXLDenotes a PR that changes 1000+ lines, ignoring generated files.Denotes a PR that changes 1000+ lines, ignoring generated files.

Status: Merged (completed).

pingcap/tidbnumber 63803

#63803 In pingcap/tidb;

· by qw4990 was closed on Sep 30, 2025

test

do-not-merge/invalid-title

do-not-merge/needs-linked-issue

do-not-merge/needs-tests-checked

release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

size/SDenotes a PR that changes 10-29 lines, ignoring generated files.Denotes a PR that changes 10-29 lines, ignoring generated files.

Status: Closed (abandoned).

pingcap/tidbnumber 63800

#63800 In pingcap/tidb;

· by qw4990 was closed on Sep 29, 2025

planner: remove code of the deprecated optimizer trace - 4

approved

lgtm

ok-to-testIndicates a PR is ready to be tested.Indicates a PR is ready to be tested.

release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

sig/plannerSIG: PlannerSIG: Planner

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Status: Merged (completed).

pingcap/tidbnumber 63793

#63793 In pingcap/tidb;

· by qw4990 was closed on Sep 29, 2025

planner: remove code of the deprecated optimizer trace - 3

approved

lgtm

release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

sig/plannerSIG: PlannerSIG: Planner

size/XLDenotes a PR that changes 500-999 lines, ignoring generated files.Denotes a PR that changes 500-999 lines, ignoring generated files.

Status: Merged (completed).

pingcap/tidbnumber 63784

#63784 In pingcap/tidb;

· by qw4990 was closed on Sep 28, 2025

planner: remove code of the deprecated optimizer trace - 2

approved

lgtm

ok-to-testIndicates a PR is ready to be tested.Indicates a PR is ready to be tested.

release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

sig/plannerSIG: PlannerSIG: Planner

size/XXLDenotes a PR that changes 1000+ lines, ignoring generated files.Denotes a PR that changes 1000+ lines, ignoring generated files.

Status: Merged (completed).

pingcap/tidbnumber 63765

#63765 In pingcap/tidb;

· by qw4990 was closed on Sep 28, 2025

planner: remove code of the deprecated optimizer trace - 1

approved

lgtm

release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

sig/plannerSIG: PlannerSIG: Planner

size/XXLDenotes a PR that changes 1000+ lines, ignoring generated files.Denotes a PR that changes 1000+ lines, ignoring generated files.

Status: Merged (completed).

pingcap/tidbnumber 63731

#63731 In pingcap/tidb;

· by qw4990 was closed on Sep 26, 2025

planner: consider magnified seeking cost in IndexJoin

approved

lgtm

release-note-noneDenotes a PR that doesn't merit a release note.Denotes a PR that doesn't merit a release note.

sig/plannerSIG: PlannerSIG: Planner

size/MDenotes a PR that changes 30-99 lines, ignoring generated files.Denotes a PR that changes 30-99 lines, ignoring generated files.

Status: Merged (completed).

pingcap/tidbnumber 63568

#63568 In pingcap/tidb;

· by qw4990 was closed on Sep 23, 2025