id,node_id,number,title,user,state,locked,assignee,milestone,comments,created_at,updated_at,closed_at,author_association,pull_request,body,repo,type,active_lock_reason,performed_via_github_app,reactions,draft,state_reason
447451492,MDU6SXNzdWU0NDc0NTE0OTI=,484,Mechanism for displaying summary of m2m relationships in rows on table view,9599,open,0,,,1,2019-05-23T05:02:41Z,2019-05-23T06:34:05Z,,OWNER,,"Part of #354 (m2m support)

It would be fantastic if rows that are part of a m2m relationship could display it in an additional column in the table view.

It might look something like this: https://russian-ira-facebook-ads.datasettes.com/russian-ads-919cbfd/display_ads?_search=black+lives+matter

<img width=""1475"" alt=""russian-ads__display_ads__50_rows_where_where_search_matches__black_lives_matter_"" src=""https://user-images.githubusercontent.com/9599/58226788-12690580-7cdd-11e9-9925-73153b27a413.png"">

That example [was achieved](https://github.com/simonw/russian-ira-facebook-ads-datasette/blob/daf51a8c50a78e8bc7971c211005fd85e66ccf64/russian-ads-metadata.yaml#L72-L77) using a custom SQL query and [datasette-json-html](https://github.com/simonw/datasette-json-html) - but I'd like this to be a built-in feature instead.",107914493,issue,,,"{""url"": ""https://api.github.com/repos/simonw/datasette/issues/484/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,
346027040,MDU6SXNzdWUzNDYwMjcwNDA=,355,Table view should support filtering via many-to-many relationships,9599,open,0,,,10,2018-07-31T04:04:16Z,2019-05-23T06:04:03Z,,OWNER,,Parent: #354 ,107914493,issue,,,"{""url"": ""https://api.github.com/repos/simonw/datasette/issues/355/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,
322787470,MDU6SXNzdWUzMjI3ODc0NzA=,259,inspect() should detect many-to-many relationships,9599,closed,0,,,6,2018-05-14T12:03:58Z,2019-05-23T03:55:37Z,2019-05-23T03:55:37Z,OWNER,,"Relates to #255 - in particular supporting facets across M2M relationships.

It should be possible for `.inspect()` to notice when a table has two foreign keys to two different tables, and assume that this means there is a M2M relationship between those tables.

When rendering a table with a m2m relationship we could display the first X associated records as a comma separated list of hyperlinks in a new column on the table view, with a column name derived from the table on the other side.

Since SQLite doesn't have RANK or an equivalent of https://www.xaprb.com/blog/2006/12/02/how-to-number-rows-in-mysql/ this would be implemented as N+1 queries (one query per cell that we want to display an m2m summary). This should be OK in SQLite: https://sqlite.org/np1queryprob.html",107914493,issue,,,"{""url"": ""https://api.github.com/repos/simonw/datasette/issues/259/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed