[Maria-discuss] Restated: JSON cannot represent binary data

I think we're getting lost in the detail. Beyond dispute are two facts: 1. BINARY is a valid datatype in dynamic columns. 2. JSON cannot represent binary data. It follows that: COLUMN_JSON() cannot (correctly) represent all dynamic column values. So I ask the question is: What *should* COLUMN_JSON() do when a dynamic column contains BINARY values? When I file a bug report, I like to give an expected result. I don't know what it is in this case. Every other decent JSON encoder errors on such input. Is that what Maria should do?