| Bug #30883 | Dependent Sub Queries Very Slow | ||
|---|---|---|---|
| Submitted: | 7 Sep 2007 5:28 | Modified: | 16 Nov 2008 17:26 |
| Reporter: | Eugene Lee | Email Updates: | |
| Status: | No Feedback | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S5 (Performance) |
| Version: | 5.0.27 | OS: | Linux (CentOS 4.3) |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | dependent, slow, SUB QUERY | ||
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
