Bug #4456 I'm don't know bug that or not. But MySQL had returned result not such as Iwant
Submitted: 8 Jul 2004 9:02 Modified: 8 Jul 2004 10:54
Reporter: Yaroslav Svintsov Email Updates:
Status: Not a Bug Impact on me:
None 
Category:MySQL Server: User-defined functions ( UDF ) Severity:S3 (Non-critical)
Version:4.1.1-alpha OS:FreeBSD (FreeBSD 4.9-RELEASE)
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: