Bug #54443 group_concat() silently truncates my result
Submitted: 11 Jun 2010 19:35 Modified: 11 Jun 2010 21:00
Reporter: Christopher Dickinson Email Updates:
Status: Not a Bug Impact on me:
None 
Category:MySQL Server: Errors Severity:S3 (Non-critical)
Version: OS:Any
Assigned to: CPU Architecture:Any
Tags: group_concat, group_concat_max_len

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: