| Bug #41136 | ORDER BY + range access:EXPLAIN shows "Using MRR" while MRR is actually not used | ||
|---|---|---|---|
| Submitted: | 30 Nov 2008 14:32 | Modified: | 23 Nov 2010 3:34 |
| Reporter: | Sergey Petrunya | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S3 (Non-critical) |
| Version: | 6.0 bzr | OS: | Any |
| Assigned to: | Sergey Petrunya | 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
