Specific Fields, Irrespective of their Value

EXISTS

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

FieldText=EXISTS{}:yourFields

where:

yourFields

is one or more fields. A document returns only if it contains one of these fields (even if the field is empty).

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

Examples:

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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