html_url,issue_url,id,node_id,user,user_label,created_at,updated_at,author_association,body,reactions,issue,issue_label,performed_via_github_app
https://github.com/simonw/datasette/issues/262#issuecomment-712988146,https://api.github.com/repos/simonw/datasette/issues/262,712988146,MDEyOklzc3VlQ29tbWVudDcxMjk4ODE0Ng==,9599,simonw,2020-10-20T16:32:02Z,2023-01-17T01:54:13Z,OWNER,"Just realized I added an undocumented `?_extras=` option to the row view years ago and forgot about it - it's not even documented. Added in a30c5b220c15360d575e94b0e67f3255e120b916 - https://latest.datasette.io/fixtures/attraction_characteristic/2.json?_extras=foreign_key_tables

That will need to be made consistent with the new mechanism. I think `?_extra=a&_extra=b` is more consistent with other Datasette features (like `?_facet=col1&_facet=col2`) but potentially quite verbose.

So I could support `?_extra=a,b,c` as an alternative allowed syntax, or I could allow `?_extra=single` and `?_extras=comma,separated`.

I think I prefer allowing commas in `?_extra=`.
","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",323658641,Add ?_extra= mechanism for requesting extra properties in JSON,