| Bug #112902 | Optimizer in MySQL 8 is significantly slower on dependent subqueries than 5.7 | ||
|---|---|---|---|
| Submitted: | 31 Oct 2023 14:39 | Modified: | 26 Feb 2024 9:39 |
| Reporter: | Oli Sennhauser | Email Updates: | |
| Status: | Verified | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S5 (Performance) |
| Version: | 8.0.31, 8.0.35 | OS: | Linux (n.a.) |
| Assigned to: | CPU Architecture: | x86 (x86_64) | |
| Tags: | dependent subquery, Optimizer, performance | ||
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
