How does xdata handle Mysql Longtext field types

[wlandgraf (Wagner Landgraf)]

That's how BLOBs work in XData. It's explained in the documentation here:

https://doc.tmssoftware.com/biz/xdata/guide/aurelius.html#addressing-streams-blobs

Alternatively you can use this approach if you don't mind about lazy loading:

XData and PostgreSQL Text Field

That is the text content encoded in Base64. You should get that value and pass it through a Base64 decoder to have your final text. If you don't want or don't need to have your json_field to be lazy-loaded, you can simply map it as a string type. Just make the size 65536 and then it will still be a blob in your database (a text blob, actually) and in XData it will appear inline as raw text: [Column('json_field', [], 65536)] FJsonField: string;