| Bug #50939 | Loose Index Scan unduly relies on engine to remember range endpoints | ||
|---|---|---|---|
| Submitted: | 5 Feb 2010 9:10 | Modified: | 14 Oct 2010 14:09 |
| Reporter: | Martin Hansson | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S5 (Performance) |
| Version: | all | OS: | Any |
| Assigned to: | Martin Hansson | CPU Architecture: | Any |
| Tags: | GROUP BY, loose index scan, partition, performance | ||
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
[5 Feb 2010 9:21]
Martin Hansson
