Flutter firebase where condition case sensitive

Question

Is it possible to query the field (userEmail) like below, converting the field value to lowercase and parameter to lowercase or uppercase.

return _firestore
       .collection("users")
       .where(FieldPath.documentId, isEqualTo: teamKey)
       .where("status", isEqualTo: 1)
       .where("Email".trim().toLowerCase(), isEqualTo: useremail.trim().toLowerCase())
       .get();