| Bug #54225 | Optimizer prefers table scan and filesort instead of index scan | ||
|---|---|---|---|
| Submitted: | 4 Jun 2010 8:12 | Modified: | 11 Apr 2020 2:09 |
| Reporter: | Andrew A | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S5 (Performance) |
| Version: | 5.1.37, 5.1.49, 5.5.5-m3 | OS: | Linux (5.1.37-1ubuntu5.1) |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | optimizer index filesort | ||
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
