| Bug #76398 | MySQL doing full scan depending on limit value with ORDER BY query | ||
|---|---|---|---|
| Submitted: | 19 Mar 2015 20:27 | Modified: | 11 Apr 2020 2:20 |
| Reporter: | Christophe Fondacci | Email Updates: | |
| Status: | Verified | Impact on me: | |
| Category: | MySQL Server: InnoDB storage engine | Severity: | S3 (Non-critical) |
| Version: | 5.6.23, 5.6.25, 5.5.44 | OS: | Any (CentOS, Mac OS X) |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | filesort, full scan, limit, order | ||
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
