Bug #78255 Foreign key allowed between InnoDB and MyISAM if "set foreign_key_checks=0"
Submitted: 28 Aug 2015 8:37 Modified: 28 Aug 2015 14:07
Reporter: Nick Moore Email Updates:
Status: Verified Impact on me:
None 
Category:MySQL Server: InnoDB storage engine Severity:S3 (Non-critical)
Version:5.6.24 (and earlier, too) OS:Any
Assigned to: CPU Architecture:Any
Tags: Foreign key constraint, innodb, myisam

File: Maximum allowed size is 50MB.
Description:
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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: