Bug #14400 Query joins wrong rows from table which is subject of "concurrent insert"
Submitted: 27 Oct 2005 16:15 Modified: 22 Sep 2006 15:27
Reporter: Alexander Keremidarski Email Updates:
Status: Closed Impact on me:
Category:MySQL Server: MyISAM storage engine Severity:S2 (Serious)
Version:3.23, 4.0, 4.1, 5.0 OS:Any (any)
Assigned to: Ingo Strüwing CPU Architecture:Any

File: Maximum allowed size is 3MB.

If the data you need to attach is more than 3MB, you should create a compressed archive of the data and a README file that describes the data with a filename that includes the bug number (recommended filename: mysql-bug-data-14400.zip) and upload one to sftp.oracle.com. A free Oracle Web (SSO) account (the one you use to login bugs.mysql.com) and a client that supports SFTP are required in order to access the SFTP server.

To upload the file to sftp.oracle.com:

  1. Open an SFTP client and connect to sftp.oracle.com. Specify port 2021 and remote directory /support/incoming/.
  2. Log in with your newly created Oracle Web account (email address) and password.
  3. Upload the archive to /support/incoming.
  4. Once you have uploaded the file, add a comment to this bug to notify us about it.
Example: sftp -oPort=2021 -oUser=email sftp.oracle.com:/support/incoming

Usage Notes: This directory is unlistable, which means that once you have uploaded your file, you will not be able to see it. A file cannot be uploaded more than once with the same filename. The filename must be changed before attempting to upload the file again. The filename should always start with mysql-bug- prefix. Files are retained on the SFTP server for 7 days and then permanently removed.

[27 Oct 2005 16:16] Alexander Keremidarski
mysqldump generated script

Attachment: testcase.sql.bz2 (application/x-bzip, text), 96.05 KiB.

[2 Jun 2006 16:20] Ingo Strüwing
My test script

Attachment: bug14400-1.sh (application/x-sh, text), 5.31 KiB.

[7 Jun 2006 12:33] Ingo Strüwing
My final test script. It can repeat the problem now.

Attachment: bug14400-1.sh (application/x-sh, text), 8.09 KiB.