# ReferenceMemoryMappedType

The fields with this property hold a value that is an existing value in a different ReferenceType field.

IDOL Server uses this value in combination with the `FieldRecurse` action parameter and the field specifier `MATCHRECURSE`. You can also use it with the `LINK` field specifier, and the `LinkFieldText` action parameter to run linked queries.

NOTE: You cannot configure a field with more than one numeric-based field type concurrently. Numeric-based types include NumericType, NumericDateType, MatchType, ParametricRangeType, ReferenceMemoryMappedType, and ParametricType when the `ParametricNumericMapping` configuration parameter is set to `True`.

Type: | Boolean
Default: | False
Required: | No
Configuration Section: | `MyProperty`
Example: | `ReferenceMemoryMappedType=True`
See Also: | NumericNormalMaxMem Property PropertyFieldCSVs

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