Bug #71403 ERROR 1167 (42000): The used storage engine can't index column on [VAR]CHAR(0)
Submitted: 17 Jan 2014 0:46 Modified: 20 Jan 2014 7:01
Reporter: Roel Van de Paar Email Updates:
Status: Not a Bug Impact on me:
None 
Category:MySQL Server: DML Severity:S3 (Non-critical)
Version:5.6 OS:Any
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: