presto-spi/src/main/java/io/prestosql/spi/connector/ConnectorViewDefinition.java/ConnectorViewDefinition/ViewColumn
class ConnectorViewDefinition:        @JsonCreator
        public ViewColumn(
                @JsonProperty("name") String name,
                @JsonProperty("type") TypeId type)
        {
            this.name = requireNonNull(name, "name is null");
            this.type = requireNonNull(type, "type is null");
        }