planner: Move the Selectivity function from the stats package into cardinality package #46359

qw4990 · 2023-08-23T10:03:01Z

What problem does this PR solve?

Issue Number: ref #46358

Problem Summary: Move the Selectivity function from the stats package into cardinality package

What is changed and how it works?

No logical change, just some code movement.

Move the Selectivity function from the stats package.

Check List

Tests

Unit test
Integration test
Manual test (add detailed scripts or steps below)
No code

Side effects

Performance regression: Consumes more CPU
Performance regression: Consumes more Memory
Breaking backward compatibility

Documentation

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

tiprow · 2023-08-23T10:03:27Z

Hi @qw4990. Thanks for your PR.

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hawkingrei · 2023-08-23T10:25:10Z

planner/cardinality/pseudo.go

+			}
+		case ast.GE, ast.GT, ast.LE, ast.LT:
+			minFactor = math.Min(minFactor, 1.0/pseudoLessRate)
+			// FIXME: To resolve the between case.


This FIXME was created in 2017.

OK... Let's fix it later on...

codecov · 2023-08-23T10:33:09Z

Codecov Report

Merging #46359 (0f8b47a) into master (2b766b4) will decrease coverage by 0.6274%.
Report is 2 commits behind head on master.
The diff coverage is 81.9887%.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #46359        +/-   ##
================================================
- Coverage   73.3881%   72.7607%   -0.6274%     
================================================
  Files          1288       1311        +23     
  Lines        393542     399915      +6373     
================================================
+ Hits         288813     290981      +2168     
- Misses        86351      90492      +4141     
- Partials      18378      18442        +64

Flag	Coverage Δ
integration	`25.6850% <62.6641%> (?)`
unit	`73.4393% <81.9887%> (+0.0512%)`	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
dumpling	`54.0444% <ø> (ø)`
parser	`85.0741% <ø> (ø)`
br	`47.9544% <ø> (-4.3283%)`	⬇️

Rustin170506 · 2023-08-23T10:46:01Z

/cc

ti-chi-bot · 2023-08-23T13:52:38Z

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hawkingrei, time-and-fate

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ti-chi-bot · 2023-08-23T13:52:44Z

[LGTM Timeline notifier]

Timeline:

2023-08-23 10:19:44.643127566 +0000 UTC m=+1317549.192143551: ☑️ agreed by hawkingrei.
2023-08-23 13:52:43.972831197 +0000 UTC m=+1330328.521847183: ☑️ agreed by time-and-fate.

tiprow · 2023-08-23T14:06:08Z

@qw4990: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
tiprow_fast_test	`0f8b47a`	link	true	`/test tiprow_fast_test`

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qw4990 · 2023-08-23T14:22:42Z

/test tiprow_fast_test

ti-chi-bot · 2023-08-23T14:22:46Z

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tiprow · 2023-08-23T14:23:12Z

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qw4990 · 2023-08-23T14:25:19Z

/test tiprow_fast_test

ti-chi-bot · 2023-08-23T14:25:22Z

@qw4990: The specified target(s) for /test were not found.
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tiprow · 2023-08-23T14:25:50Z

@qw4990: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

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/test tiprow_fast_test

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qw4990 · 2023-08-23T14:27:07Z

/ok-to-test

qw4990 · 2023-08-23T14:27:31Z

/test tiprow_fast_test

ti-chi-bot · 2023-08-23T14:28:03Z

@qw4990: The specified target(s) for /test were not found.
The following commands are available to trigger required jobs:

/test build
/test canary-scan-security
/test check-dev
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/test pingcap/tidb/canary_ghpr_unit_test
/test pull-br-integration-test
/test pull-common-test
/test pull-e2e-test
/test pull-integration-common-test
/test pull-integration-copr-test
/test pull-integration-ddl-test
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The following commands are available to trigger optional jobs:

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Use /test all to run the following jobs that were automatically triggered:

pingcap/tidb/ghpr_build
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pingcap/tidb/ghpr_mysql_test
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/test tiprow_fast_test

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ti-chi-bot bot added release-note-none Denotes a PR that doesn't merit a release note. size/XXL Denotes a PR that changes 1000+ lines, ignoring generated files. labels Aug 23, 2023

fixup

c4aee96

qw4990 force-pushed the ce-decoupling branch from f945f7f to c4aee96 Compare August 23, 2023 10:11

qw4990 added sig/planner SIG: Planner epic/cardinality-estimation the optimizer cardinality estimation labels Aug 23, 2023

make linter happy

c755793

hawkingrei approved these changes Aug 23, 2023

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ti-chi-bot bot added approved needs-1-more-lgtm Indicates a PR needs 1 more LGTM. labels Aug 23, 2023

hawkingrei reviewed Aug 23, 2023

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qw4990 added 2 commits August 23, 2023 18:34

make linter happy

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make linter happy

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ti-chi-bot bot requested a review from Rustin170506 August 23, 2023 10:46

qw4990 added 8 commits August 23, 2023 19:14

make linter happy

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make linter happy

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make linter happy

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Merge remote-tracking branch 'upstream/master' into ce-decoupling

e01c5c0

fixup

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fixup

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time-and-fate approved these changes Aug 23, 2023

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ti-chi-bot bot merged commit 2aa82f5 into pingcap:master Aug 23, 2023
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planner: Move the Selectivity function from the stats package into cardinality package #46359

planner: Move the Selectivity function from the stats package into cardinality package #46359

qw4990 commented Aug 23, 2023 •

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ti-chi-bot bot commented Aug 23, 2023

planner: Move the Selectivity function from the stats package into cardinality package #46359

planner: Move the Selectivity function from the stats package into cardinality package #46359

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qw4990 commented Aug 23, 2023 • edited Loading

What problem does this PR solve?

What is changed and how it works?

Check List

Release note

tiprow bot commented Aug 23, 2023

hawkingrei Aug 23, 2023

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Codecov Report

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[LGTM Timeline notifier]

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qw4990 commented Aug 23, 2023 •

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