Fields that Do Not Exist or Contain No Value

EMPTY

The EMPTY field specifier (case sensitive) allows you to find documents in which a specified field does not exist or contains no value.

FieldText=EMPTY{}:yourFields

where:

yourFields

is one or more fields. A document returns only if it does not contain any of these fields or if these fields are empty.

To specify multiple fields, separate them with colons (there must be no space before or after a colon).

Examples:

FieldText=EMPTY{}:ID

A document must not contain an ID field, or must hold no value in its ID field, to return.

FieldText=EMPTY{}:ID:Name

A document must not contain an ID or Name field, or must hold no value in its ID or Name field, to return.


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