Bug #34364 LEFT JOIN with subquery takes very long time
Submitted: 6 Feb 2008 21:17 Modified: 30 Jul 2012 17:14
Reporter: Ratan Mohla Email Updates:
Status: Closed Impact on me:
None 
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

File: Maximum allowed size is 50MB.
Description:
Privacy:

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:

[7 Feb 2008 19:47] Ratan Mohla
test schema and some data populated

Attachment: omvmomua_small.dmp.gz (application/gzip, text), 398.09 KiB.

[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.