Bug #44139 Table scan when NULL appears in IN clause
Submitted: 7 Apr 2009 23:00 Modified: 18 Dec 2009 13:20
Reporter: Gary Pendergast Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Optimizer Severity:S3 (Non-critical)
Version:5.1 OS:Any
Assigned to: Gleb Shchepa CPU Architecture:Any
Tags: Optimizer, regression

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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: