_flags |= SQLiteConnectionFlags.UseConnectionReadValueCallbacks;
        }
    }

    /// <summary>
    /// Attempts to query the integer identifier for the current row.  This
    /// will not work for tables that were created WITHOUT ROWID -OR- if the
    /// query does not include the "rowid" column or one of its aliases.


    /// </summary>
    /// <returns>
    /// The integer identifier for the current row -OR- null if it could not
    /// be determined.
    /// </returns>
    internal long? GetRowId(int i)
    {
................................................................................
        return GetInt64(iRowId);
    }

    /// <summary>
    /// Retrieves the column as a <see cref="SQLiteBlob" /> object.
    /// This will not work for tables that were created WITHOUT ROWID
    /// -OR- if the query does not include the "rowid" column or one
    /// of its aliases.

    /// </summary>
    /// <param name="i">The index of the column.</param>
    /// <param name="readOnly">
    /// Non-zero to open the blob object for read-only access.
    /// </param>
    /// <returns>A new <see cref="SQLiteBlob" /> object.</returns>
    public SQLiteBlob GetBlob(int i, bool readOnly)

            _flags |= SQLiteConnectionFlags.UseConnectionReadValueCallbacks;
        }
    }

    /// <summary>
    /// Attempts to query the integer identifier for the current row.  This
    /// will not work for tables that were created WITHOUT ROWID -OR- if the
    /// query does not include the "rowid" column or one of its aliases -OR-
    /// if the <see cref="SQLiteDataReader" /> was not created with the
    /// <see cref="CommandBehavior.KeyInfo"/> flag.
    /// </summary>
    /// <returns>
    /// The integer identifier for the current row -OR- null if it could not
    /// be determined.
    /// </returns>
    internal long? GetRowId(int i)
    {
................................................................................
        return GetInt64(iRowId);
    }

    /// <summary>
    /// Retrieves the column as a <see cref="SQLiteBlob" /> object.
    /// This will not work for tables that were created WITHOUT ROWID
    /// -OR- if the query does not include the "rowid" column or one
    /// of its aliases -OR- if the <see cref="SQLiteDataReader" /> was
    /// not created with the <see cref="CommandBehavior.KeyInfo"/> flag.
    /// </summary>
    /// <param name="i">The index of the column.</param>
    /// <param name="readOnly">
    /// Non-zero to open the blob object for read-only access.
    /// </param>
    /// <returns>A new <see cref="SQLiteBlob" /> object.</returns>
    public SQLiteBlob GetBlob(int i, bool readOnly)