# 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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