Malformed trail byte error

[dbulic]

When I try to open a table containing binary value using TMyQuery, exception is raised with a message 'malformed trail byte'.
In the stack trace I can see that you are trying to transform binary data from UTF8 to WideString, which doesn't make any sense.
Stack trace goes: TMySQLRecordset.Fetch, ProcessRow, GetDataFromRow, ConvertToWideString, Utf8ToWS.

Here is how to recreate the problem:

create table `Address`(
`AddressID` int not null,
`rowguid` binary(16) not null
);
insert into `Address`(`AddressID`,`rowguid`) values (1,0x9AADCB0D36CF483F84D8585C2D4EC6E9);

[AndreyZ]

To solve the problem, you should set the TMyQuery.Options.BinaryAsString option to False. For more information about this option, please refer to the MyDAC documentation.