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inconsistent result for built in function uuid_to_bin #30324

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unconsolable opened this issue Dec 1, 2021 · 3 comments
Closed

inconsistent result for built in function uuid_to_bin #30324

unconsolable opened this issue Dec 1, 2021 · 3 comments
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type/bug The issue is confirmed as a bug.

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@unconsolable
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Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

select uuid_to_bin('urn:uuid:99a9ad03-5298-11ec-8f5c-00ff90147ac3');
select uuid_to_bin(' 99a9ad03-5298-11ec-8f5c-00ff90147ac3 ');

2. What did you expect to see? (Required)

MySQL 8.0.27

mysql> select uuid_to_bin('urn:uuid:99a9ad03-5298-11ec-8f5c-00ff90147ac3');
ERROR 1411 (HY000): Incorrect string value: 'urn:uuid:99a9ad03-5298-11ec-8f5c-00ff90147ac3' for function uuid_to_bin
mysql> select uuid_to_bin(' 99a9ad03-5298-11ec-8f5c-00ff90147ac3 ');
ERROR 1411 (HY000): Incorrect string value: ' 99a9ad03-5298-11ec-8f5c-00ff90147ac3 ' for function uuid_to_bin

3. What did you see instead (Required)

mysql> select uuid_to_bin('urn:uuid:99a9ad03-5298-11ec-8f5c-00ff90147ac3');
0x99A9AD03529811EC8F5C00FF90147AC3

mysql> select uuid_to_bin(' 99a9ad03-5298-11ec-8f5c-00ff90147ac3 ');
0x99A9AD03529811EC8F5C00FF90147AC3

4. What is your TiDB version? (Required)

Release Version: v5.3.0
Edition: Community
Git Commit Hash: 4a1b2e9
Git Branch: heads/refs/tags/v5.3.0
UTC Build Time: 2021-11-24 13:32:39
GoVersion: go1.16.4
Race Enabled: false
TiKV Min Version: v3.0.0-60965b006877ca7234adaced7890d7b029ed1306
Check Table Before Drop: false

@unconsolable unconsolable added the type/bug The issue is confirmed as a bug. label Dec 1, 2021
@unconsolable
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unconsolable commented Dec 1, 2021

I think it is related to upstream package github.com/google/uuid and it's way of Parse, there are tracking issues google/uuid#60 and google/uuid#61, but haven't been merged after a year.
IMHO to fix it, a wrapper of Parse may be needed.

@github-actions
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github-actions bot commented Dec 1, 2021

Please check whether the issue should be labeled with 'affects-x.y' or 'fixes-x.y.z', and then remove 'needs-more-info' label.

@github-actions
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github-actions bot commented Dec 1, 2021

Please check whether the issue should be labeled with 'affects-x.y' or 'fixes-x.y.z', and then remove 'needs-more-info' label.

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