Bug #118009 SELECT query on primary key column deteriorates to full table scan when filter involves too long string
| Submitted: | 18 Apr 2025 7:13 | Modified: | 27 Apr 10:08 |
|---|---|---|---|
| Reporter: | Pawel Kudzia | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S5 (Performance) |
| Version: | 8.4.5, 9.3.0 | OS: | Debian (12) |
| Assigned to: | CPU Architecture: | x86 (amd64) | |
| Tags: | regression | ||
If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.
To split a large file:
- On *nix platforms use the split command e.g.
split -b 50MB <my_large_archive> <my_split_archive_prefix> - On windows use WinZip or a similar utility to split the large file
[9 Feb 10:11]
Yakir Gibraltar
[9 Feb 20:25]
Yakir Gibraltar
Patch for Bug#118009, Bug#118486, Bug#119770, Bug#119867 (combined)
Attachment: bug118009_combined.patch (application/octet-stream, text), 29.56 KiB.
[10 Feb 15:45]
Yakir Gibraltar
clang-format fix
Attachment: bug118009_combined.patch (application/octet-stream, text), 29.56 KiB.
[12 Feb 13:36]
Yakir Gibraltar
More fixes
Attachment: bug118009_combined.patch (application/octet-stream, text), 28.05 KiB.
[19 Feb 17:15]
Yakir Gibraltar
Final patch
Attachment: bug118009_combined.patch (application/octet-stream, text), 40.58 KiB.
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