Bug #34364 | LEFT JOIN with subquery takes very long time | ||
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Submitted: | 6 Feb 2008 21:17 | Modified: | 30 Jul 2012 17:14 |
Reporter: | Ratan Mohla | Email Updates: | |
Status: | Closed | Impact on me: | |
Category: | MySQL Server: Optimizer | Severity: | S1 (Critical) |
Version: | 5.1.22 | OS: | Solaris (SunOS clapton.nms.fnc.fujitsu.com 5.10 Generic_118833-36 sun4u sparc SUNW,Ultra-4) |
Assigned to: | 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
[7 Feb 2008 19:47]
Ratan Mohla
[7 Feb 2008 19:47]
Ratan Mohla
perl script to generate large data
Attachment: db_mysql_griphon_10wayjoin.pl (application/octet-stream, text), 9.60 KiB.