| Bug #96378 | Subquery with parameter is exponentially slower than hard-coded value | ||
|---|---|---|---|
| Submitted: | 31 Jul 2019 3:00 | Modified: | 2 Jan 2020 9:47 |
| Reporter: | Jeff Johnson | Email Updates: | |
| Status: | No Feedback | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S4 (Feature request) |
| Version: | 8.0.17 | OS: | Windows (Windows 10 x64) |
| Assigned to: | CPU Architecture: | x86 (AMD Threadripper 1950X) | |
| Tags: | 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
