The number of records in the database object. An estimate of the number of records in an entity set, named set, relationship with fields or an estimate of the number of records (lines) in a document.
A non-negative number (vastint)
If you enter 0 or leave the field blank, an internal default value is used.
AvgSize is used by the strategy analyzer to determine the most efficient access strategy when a database object is used in a set specification. AvgSize does not restrict the physical size of the object in any way.