| Bug #61223 | SQL_CALC_FOUND_ROWS kills performance with left join ,join,right join and LIMIT | ||
|---|---|---|---|
| Submitted: | 19 May 2011 1:57 | Modified: | 22 Oct 2012 4:51 |
| Reporter: | shu xinyi | Email Updates: | |
| Status: | No Feedback | Impact on me: | |
| Category: | MySQL Server: DML | Severity: | S5 (Performance) |
| Version: | 5.0 | 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
