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var Doc := FMyContext.Document;
var Query := Linq.From(Doc).Select([Doc.XmlOriginal]).Take(1); // XmlOriginal Field in MSSQL is XML
EntityDataSet1.SourceCollection := FStingray.GetEntities(Query);
EntityDataSet1.Open; // this error EProviderException with message '[TFieldProvider] Unsupported data type for the XmlOriginal field: ftDBaseOle'

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[Column('XmlOriginal')]
FXmlOriginal: TXMLData;

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[Column('XmlOriginal')]
FXmlOriginal: string;