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planner: Move the Selectivity function from the stats package into cardinality package #46383

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merged 7 commits into from
Aug 24, 2023

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@qw4990 qw4990 commented Aug 24, 2023

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.

Follow with #46359

Move the Selectivity function from the stats package.

image

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

  • Affects user behaviors
  • Contains syntax changes
  • Contains variable changes
  • Contains experimental features
  • Changes MySQL compatibility

Release note

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

None

@ti-chi-bot 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 24, 2023
@qw4990 qw4990 added sig/planner SIG: Planner epic/cardinality-estimation the optimizer cardinality estimation labels Aug 24, 2023
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Hi @qw4990. Thanks for your PR.

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@@ -0,0 +1,194 @@
package cardinality
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add license header.

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remember to run the make bazel_prepare.

if !ok {
continue
}
newCol := &statistics.Column{
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We can add NewColumn for it.

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That's exactly what I want to do later on... Use a standard NewFunc to create these structures.

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/ok-to-test

@ti-chi-bot ti-chi-bot bot added the ok-to-test Indicates a PR is ready to be tested. label Aug 24, 2023
@ti-chi-bot ti-chi-bot bot added approved needs-1-more-lgtm Indicates a PR needs 1 more LGTM. labels Aug 24, 2023
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codecov bot commented Aug 24, 2023

Codecov Report

Merging #46383 (44d4653) into master (65ca55e) will decrease coverage by 0.6845%.
The diff coverage is 78.9156%.

Additional details and impacted files
@@               Coverage Diff                @@
##             master     #46383        +/-   ##
================================================
- Coverage   73.3921%   72.7076%   -0.6845%     
================================================
  Files          1290       1312        +22     
  Lines        393530     399724      +6194     
================================================
+ Hits         288820     290630      +1810     
- Misses        86351      90656      +4305     
- Partials      18359      18438        +79     
Flag Coverage Δ
integration 25.6317% <9.0361%> (?)
unit 73.3903% <78.9156%> (-0.0018%) ⬇️

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

Components Coverage Δ
dumpling 54.0444% <ø> (ø)
parser 85.0633% <ø> (ø)
br 47.9381% <ø> (-4.3604%) ⬇️

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ti-chi-bot bot commented Aug 24, 2023

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hawkingrei, hi-rustin

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@ti-chi-bot ti-chi-bot bot added lgtm and removed needs-1-more-lgtm Indicates a PR needs 1 more LGTM. labels Aug 24, 2023
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ti-chi-bot bot commented Aug 24, 2023

[LGTM Timeline notifier]

Timeline:

  • 2023-08-24 04:04:26.199475641 +0000 UTC m=+1381430.748491628: ☑️ agreed by hi-rustin.
  • 2023-08-24 05:05:40.078261784 +0000 UTC m=+1385104.627277768: ☑️ agreed by hawkingrei.

@ti-chi-bot ti-chi-bot bot merged commit d6f993b into pingcap:master Aug 24, 2023
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3 participants