[GIS] What does an asterisk (*) mean when shown beside a field name in the attribute table

arcgis-10.0arcgis-desktopattribute-tableesri-geodatabase

What does an asterisk (*) mean when shown beside a field name in the attribute table?
I would think those are reserved field names but they are not.

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Best Answer

It means that the field is indexed. You can change the character used to indicate whether a field is indexed under the Table Options > Appearance menu:

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