public double getDouble(int offset) {
        return ClickHouseByteUtils.getFloat64(array, offset + position);
    }
Converts 8 bytes(little-endian) starting from {@code position() + offset} to
double.

@param offset zero-based relative offset, 1 means the second byte
              starting from {@link #position()}
@return double
clickhouse-data/src/main/java/com/clickhouse/data/ClickHouseByteBuffer.java