With UPDATE statement Clusterpoint can update a particular document.
The Update command rewrites mentioned fields or adds new field (if such does not exist) in existing document, or if a document with the specified ID does not exist, the Update command returns an error.
UPDATE product["34940855"] SET availability = "OutOfStock"
UPDATE product["34940855"] SET packaging.height = 11, packaging.width = 12
UPDATE product["34940855"] SET packaging.volume = packaging.height * packaging.width * packaging.depth