Bug #99382 Complex nested views take up a lot of memory
Submitted: 28 Apr 2020 7:34 Modified: 29 Apr 2020 7:55
Reporter: Fengchun Hua Email Updates:
Status: Verified Impact on me:
None 
Category:MySQL Server: Parser Severity:S1 (Critical)
Version:5.7, 8.0 OS:Any
Assigned to: CPU Architecture:Any
Tags: out of memory

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-99382.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.

[28 Apr 2020 7:34] Fengchun Hua
sql file

Attachment: sql.txt (text/plain), 43.85 KiB.

[28 Apr 2020 7:34] Fengchun Hua
sql file

Attachment: sql.txt (text/plain), 43.85 KiB.

[29 Apr 2020 8:06] Shane Bester
8.0.20 heap profile picture

Attachment: mybin.hprof.0383.heap.pdf (application/pdf, text), 18.47 KiB.