| Bug #41220 | LEFT JOIN with compound clause uses table scan, while INNER JOIN uses indexes | ||
|---|---|---|---|
| Submitted: | 4 Dec 2008 9:59 | Modified: | 18 Aug 2009 8:43 |
| Reporter: | Geoff Winkless | Email Updates: | |
| Status: | Verified | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S5 (Performance) |
| Version: | 5.1.30, 5.0, 5.1, azalea bzr | OS: | Any |
| Assigned to: | CPU Architecture: | Any | |
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
