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
470345929,MDU6SXNzdWU0NzAzNDU5Mjk=,42,"table.extract(...) method and ""sqlite-utils extract"" command",9599,closed,0,,5897911,21,2019-07-19T14:09:36Z,2020-09-22T23:39:31Z,2020-09-22T23:37:49Z,OWNER,,"One of my favourite features of [csvs-to-sqlite](https://github.com/simonw/csvs-to-sqlite) is that it can ""extract"" columns into a separate lookup table - for example:

    csvs-to-sqlite big_csv_file.csv -c country output.db

This will turn the `country` column in the resulting table into a integer foreign key against a new `country` table. You can see an example of what that looks like here: https://san-francisco.datasettes.com/registered-business-locations-3d50679/Business+Corridor was extracted from https://san-francisco.datasettes.com/registered-business-locations-3d50679/Registered_Business_Locations_-_San_Francisco?Business%20Corridor=1

I'd like to have the same capability in `sqlite-utils` - but with the ability to run it against an existing SQLite table rather than just against a CSV.",140912432,issue,,,"{""url"": ""https://api.github.com/repos/simonw/sqlite-utils/issues/42/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed