Bug #1888 Manual mentions apparently invalid --one-thread option
Submitted: 19 Nov 2003 6:50 Modified: 19 Nov 2003 10:54
Reporter: Dean Ellis Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Documentation Severity:S3 (Non-critical)
Version: OS:
Assigned to: Paul DuBois 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: