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*: use std/slices to replace exp/slices #46169

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@hawkingrei hawkingrei commented Aug 16, 2023

What problem does this PR solve?

Issue Number: ref #45933

Problem Summary:

What is changed and how it works?

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 do-not-merge/needs-linked-issue release-note-none Denotes a PR that doesn't merit a release note. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels Aug 16, 2023
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ti-chi-bot bot commented Aug 16, 2023

[APPROVALNOTIFIER] This PR is NOT APPROVED

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codecov bot commented Aug 16, 2023

Codecov Report

Merging #46169 (aa3e0f2) into master (8298ae5) will decrease coverage by 47.7681%.
The diff coverage is 0.0000%.

Additional details and impacted files
@@                Coverage Diff                @@
##             master     #46169         +/-   ##
=================================================
- Coverage   73.3507%   25.5827%   -47.7681%     
=================================================
  Files          1283       1148        -135     
  Lines        394308     349755      -44553     
=================================================
- Hits         289228      89477     -199751     
- Misses        86642     249533     +162891     
+ Partials      18438      10745       -7693     
Flag Coverage Δ
integration 25.5827% <0.0000%> (?)
unit ?

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

Components Coverage Δ
dumpling ∅ <ø> (∅)
parser ∅ <ø> (∅)
br 0.1121% <ø> (-52.0211%) ⬇️

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/test all

@@ -143,12 +143,15 @@ func (m *memIndexReader) getMemRows(ctx context.Context) ([][]types.Datum, error
}

if m.keepOrder && m.table.GetPartitionInfo() != nil {
slices.SortFunc(m.addedRows, func(a, b []types.Datum) bool {
slices.SortFunc(m.addedRows, func(a, b []types.Datum) int {
ret, err1 := m.compare(m.ctx.GetSessionVars().StmtCtx, a, b)
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I'd like to add some comments to m.compare to summarize the meaning of return values 😂

@@ -143,12 +143,15 @@ func (m *memIndexReader) getMemRows(ctx context.Context) ([][]types.Datum, error
}

if m.keepOrder && m.table.GetPartitionInfo() != nil {
slices.SortFunc(m.addedRows, func(a, b []types.Datum) bool {
slices.SortFunc(m.addedRows, func(a, b []types.Datum) int {
ret, err1 := m.compare(m.ctx.GetSessionVars().StmtCtx, a, b)
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Better change the compare function

func (ce compareExec) compare(sctx *stmtctx.StatementContext, a, b []types.Datum) (ret bool, err error) {

Signed-off-by: Weizhen Wang <[email protected]>
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ti-chi-bot bot commented Aug 17, 2023

@hawkingrei: 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
idc-jenkins-ci-tidb/unit-test aa3e0f2 link true /test unit-test

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@hawkingrei: 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 aa3e0f2 link true /test tiprow_fast_test

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@hawkingrei hawkingrei closed this Aug 28, 2023
@hawkingrei hawkingrei deleted the slice0817 branch August 28, 2023 03:38
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3 participants