AutoCompleteCombo Error

In querybuilder, I have every layer set to:

DefaultQueryFieldInputType = " AutoCompleteCombo "

This is a problem for all fields that are not strings.  As a result, my log files have numerous errors:

Can not automatically create LayerLookUpQuery For AutoCompleteCombo on field OBJECTID for layer Reference Posts, the field in not a string type field. Use TextBox as the input type for this field.

How does this affect performance? Does this cause server resource problems? I'm at a crossing of should I just leave it the way it is eventhough its producing errors in my log files or setup every single layer:field in the query.

Any ideas?

MNDOT EGIS