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/1552#issuecomment-996229007,https://api.github.com/repos/simonw/datasette/issues/1552,996229007,IC_kwDOBm6k_c47YT-P,3556,davidbgk,2021-12-16T22:04:39Z,2021-12-16T22:04:39Z,CONTRIBUTOR,"Wow, that was fast, thank you so much @simonw !

> I'm also not convinced that this configuration syntax is right. It's a bit weird having a `""facets""` list that can either by column-name-strings or `{""type-of-facet"": ""column-name""}` objects. Maybe there's a better design for this?

I agree that it's not ideal, my initial naive approach was to detect if it's an array, like what is done here:

https://github.com/simonw/datasette/blob/2c07327d23d9c5cf939ada9ba4091c1b8b2ba42d/datasette/facets.py#L312-L313

But it requires an extra query to determine the type, which is a bit problematic, especially for big tables I guess.

Taking a look at #510, I wonder if a `facet_delimiter` should be defined for that kind of columns (that would help our team not to have an intermediary conversion step from `foo|bar` to `[""foo"",""bar""]` for instance).

To be consistent with the `--extract-column` parameter, maybe an explicit casting/delimiter would be useful: `--set-column 'Foo:Array:|'`.

Throwing a lot of ideas without knowing the big picture… but sometimes newcomers have superpowers :).","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1078702875,Allow to set `facets_array` in metadata (like current `facets`),