On Saturday, February 19, 2022, Shaozhong SHI <shishaozhong(at)gmail(dot)com>
wrote:
>
>
> That is a very odd challenge. That key and value do appear in the data
> set but it will disappear whenever you do something with the json column.
>
Your observations of this sort aren’t that useful. What would be useful,
like always, is a self-contained example.
David J.