Bug #80392 ERROR 1071 (42000): Specified key was too long error while dropping index in 5.7
Submitted: 16 Feb 2016 12:26 Modified: 25 Oct 2016 15:08
Reporter: Ramana Yeruva Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: DDL Severity:S3 (Non-critical)
Version:5.7.9 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: