public TableCapabilityBuilder add(String skill) {
        if (skill != null) {
            capabilitiesString += skill + ",";
        }
        return this;
    }
Builder for building table capabilities to be includes in TBLPROPERTIES
during createTable
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/client/builder/TableCapabilityBuilder.java