Bug #30584 delete with order by and limit clauses does not use limit efficiently
| Submitted: | 23 Aug 2007 3:31 | Modified: | 22 Jan 2009 14:59 |
|---|---|---|---|
| Reporter: | Mark Callaghan | Email Updates: | |
| Status: | Duplicate | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S5 (Performance) |
| Version: | 5.0.37,5.1.22 | OS: | Any |
| Assigned to: | Assigned Account | CPU Architecture: | Any |
| Tags: | bfsm_2007_10_18, delete, limit, Optimizer, 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
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