/// <summary>
 /// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
 /// </summary>
 public void Dispose()
 {
     this.Reader?.Dispose();
     this.Reader = null;
 }
 /// <summary>
 /// Initializes a new instance of the <see cref="CqlDatabaseReader"/> class.
 /// </summary>
 /// <param name="reader">The reader.</param>
 /// <exception cref="System.ArgumentNullException">reader can not be null.</exception>
 internal CqlDatabaseReader(CqlReader reader)
 {
     this.Reader = reader ?? throw new ArgumentNullException(nameof(reader), $"{nameof(reader)} can not be null.");
 }