MySQL Performance: MySQL => (NOT) NULL Indexes

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(NOT) NULL Indexes [message #3352]

Tue, 29 July 2008 19:04

mbor
Messages: 2
Registered: July 2008

Junior Member

Hi,

I have little question.
What index should I set on varchar(800) NULL field, if I use it only (beside in SELECT) in WHERE statement with IS (NOT) NULL?
thx

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