MATCHCOVER
The MATCHCOVER
field specifier (case sensitive) allows you to find documents in which the values in all instances of a specified field have matches in the set of string values provided in the specifier. In other words, the specifier must cover all instances of the field. A search using MATCHCOVER
is slower than one using MATCH.
To match numeric values, use EQUALCOVER.
NOTE: You can optimize the field specifier speed by configuring the field with the
and
property types (the field specifier is optimized only if you specify both property types).
NOTE: To use the MATCHCOVER
field specifier against fields that were added using the
index action, you must define the fields as
.
To use the MATCHCOVER
field specifier for fields that contain multiple identical values that might match, you must define the fields as
.
Format
FieldText=MATCHCOVER{yourStrings}:yourField
yourStrings
|
One or more strings. A document is returned only if the value in each of its instances of NOTE: Strings in the query should be percent-encoded. This ensures that any commas or curly braces that are part of a string are not interpreted as query syntax. If you are sending HTTP requests using the content-type |
yourField
|
The name of the field to match against. A document returns only if:
|
Example
FieldText=MATCHCOVER{Confidential,Secret,TopSecret,FBI}:SECURITYLEVEL
For a document to return as a result, its SECURITYLEVEL
fields must have no values that are not in the specified list. For example, if a document includes a SECURITYLEVEL
field with the value MI5
, it does not return.
(If a document has no SECURITYLEVEL
field at all, it returns.)