Bug #73094 MySQL uses all partitions instead necessary ones when using CASE THEN ELSE END
Submitted: 24 Jun 2014 12:24 Modified: 25 Jun 2014 8:18
Reporter: Muhammad Irfan Email Updates:
Status: Verified Impact on me:
None 
Category:MySQL Server: Optimizer Severity:S2 (Serious)
Version:5.5, 5.6, 5.6.19, 5.7.5 OS:Linux
Assigned to: CPU Architecture:Any

File: Maximum allowed size is 3MB.
Description:
Privacy:

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-73094.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.

[24 Jun 2014 19:57] Muhammad Irfan
table definitions

Attachment: bug-73094.txt (text/plain), 61.84 KiB.

[25 Jun 2014 7:45] Muhammad Irfan
sample data

Attachment: test-data.sql (application/octet-stream, text), 322.10 KiB.