Bug #48229 group by performance issue of partitioned table
Submitted: 22 Oct 2009 13:22 Modified: 18 Jun 2010 12:54
Reporter: Hao Wu Email Updates:
Status: Closed Impact on me:
Category:MySQL Server: Partitions Severity:S5 (Performance)
Version:5.1.37,5.1.38 OS:Linux (CentOS 4.4)
Assigned to: Mattias Jonsson
Tags: partition, performance
Triage: Triaged: D3 (Medium)

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-48229.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.

[29 Oct 2009 15:06] Miguel Solorzano
Client to populate tables

Attachment: bug48229.cpp (application/octet-stream, text), 3.74 KiB.

[31 Jan 2010 5:30] Hao Wu
perl script to populate table

Attachment: bug48229.pl (application/octet-stream, text), 211 bytes.