| Bug #120829 | Functional index intermittently unusable under concurrent load: possible_keys=NULL, FORCE INDEX silently ignored | ||
|---|---|---|---|
| Submitted: | 1 Jul 22:32 | ||
| Reporter: | Richard Lohwasser | Email Updates: | |
| Status: | Open | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S5 (Performance) |
| Version: | 8.4.10, but not 9.7 | OS: | Any |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | force index, functional index, generated column, json, Optimizer, possible_keys, race condition, substitute_generated_columns | ||
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
