presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/systemtables/ValueBuffer.java/ValueBuffer/ValueBuffer
class ValueBuffer:    private ValueBuffer(int columnIndex, Type type, @Nullable Object value)
    {
        checkArgument(columnIndex >= 0, "columnIndex must be > 0");
        this.columnIndex = columnIndex;
        this.type = requireNonNull(type, "type is null");
        this.value = value;
    }