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Error message of duplicate primary key was not showing as expected, error message has been rectified #38254

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Error message of duplicate primary key was not showing as expected, error message has been rectified #38254

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75asu
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@75asu 75asu commented Sep 29, 2022 •
edited by lance6716
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What problem does this PR solve?

Issue Number: close #35289

Problem Summary:

What is changed and how it works?

This PR modfies the rune type strings into unicode style strings as it was asked in the relevant issue

Check List

Tests

I have done the unit tests using make gotest

  • 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

@75asu
Master
33ea9a0 
close #38170

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PR Title Format:
1. pkg [, pkg2, pkg3]: what's changed
2. *: what's changed

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### What problem does this PR solve?
<!--

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Issue Number: close #35289

Problem Summary:

### What is changed and how it works?
This PR modfies the **rune type strings** into **unicode style strings** as it was asked in the relevant issue

### Check List

Tests <!-- At least one of them must be included. -->

I have done the unit tests using `make gotest`
- [ x ] 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
- [ x ] Contains variable changes
- [ ] Contains experimental features
- [ ] Changes MySQL compatibility

### Release note

<!-- compatibility change, improvement, bugfix, and new feature need a release note -->

Please refer to [Release Notes Language Style Guide](https://pingcap.github.io/tidb-dev-guide/contribute-to-tidb/release-notes-style-guide.html) to write a quality release note.

```release-note
None
```
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@ti-chi-bot ti-chi-bot added do-not-merge/invalid-title release-note-none Denotes a PR that doesn't merit a release note. size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. labels Sep 29, 2022
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@75asu 75asu changed the title Master Error message of duplicate primary key was not showing as expected, error message has been rectified Sep 29, 2022
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75asu commented Sep 29, 2022 •
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/cc @tangenta, here is a submission from my side to solve the issue - #35289

Here I have made a small demo of simillar code - go playground

Please have a look on it.

thanks

@75asu 75asu mentioned this pull request Sep 29, 2022
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lance6716
lance6716 reviewed Sep 30, 2022
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Hi, can you add an unit test to illustrate the effects?

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75asu commented Sep 30, 2022

Hi, can you add an unit test to illustrate the effects?

Hi @lance6716 , I am quite new to this, unable to figure out how to write test case for this
that's why I have provided the demo code for your reference
Could you please provide some resource following which I can write the unit tests

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Maybe you can search for the usage of MustGetErrMsg, this is a testing function that assert the SQL must return a specific error message. @measutosh

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For the ASCII characters we don't have to cast to "%u" style.

store/driver/txn/error.go Outdated Show resolved Hide resolved
store/driver/txn/error.go
return genKeyExistsError(name, strings.Join(valueStr, "-"), nil)
var nonUnicodeValueStr []string;
for i := 0; i < len(valueStr); i++ {
nonUnicodeValueStr[i] = fmt.Sprintf("\\u%X", valueStr[i])
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This assignment will panic because of the index-out-of-range error.

@75asu @tangenta
Update store/driver/txn/error.go
66420f1 
Co-authored-by: tangenta <tangenta@126.com>
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winkyao commented Dec 1, 2022

issue #35289 was fixed by PR #39485 , thanks for your contribution.

@75asu 75asu closed this by deleting the head repository Feb 18, 2023
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Error message of duplicate primary key is not shown properly
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