Bug #59419 Alter table with multiple alters causes 'lost connection to MySQL server'
Submitted: 11 Jan 2011 14:51 Modified: 23 Jan 2011 16:05
Reporter: Jeremy Jones Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: DDL Severity:S3 (Non-critical)
Version:5.1.40-community, 5.1.41-community OS:Linux
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: