EXISTS

The EXISTS field specifier (case sensitive) allows you to find documents that contain a specified field even if this field contains no value.

NOTE:

You can optimize the field specifier speed by restricting the field to the NumericType or MatchType property type.

Format

FieldText=EXISTS{}:yourFields
yourFields One or more fields. A document returns only if it contains one of these fields (even if the field is empty). Separate multiple fields with colons (:). There must be no space before or after a colon.

Example

FieldText=EXISTS{}:ID

A document must contain an ID field to return.

FieldText=EXISTS{}:ID:NAME

A document must contain an ID or NAME field (or both) to return.


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