Bug #27452 Correlated subquery produces inefficient optimizer plan for INFORMATION_SCHEMA
| Submitted: | 26 Mar 2007 17:35 | Modified: | 17 Nov 2008 19:38 |
|---|---|---|---|
| Reporter: | Jay Pipes | Email Updates: | |
| Status: | Verified | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S3 (Non-critical) |
| Version: | 5.0.40-BK, 5.0.24a-debian-log, 5.1.31-bzr, 6.0.7-alpha, 6.0.9-bzr | OS: | Linux |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | I_S, performance, subqueries, subquery | ||
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
[17 Nov 2008 15:23]
Jay Pipes
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