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
421971339,MDU6SXNzdWU0MjE5NzEzMzk=,420,Fix all the places that currently use .inspect() data,9599,closed,0,,4305096,13,2019-03-17T20:54:37Z,2019-05-19T19:58:31Z,2019-05-02T01:13:46Z,OWNER,,"See #419: if Datasette is going to work against mutable SQLite files it can no longer assume that the `.inspect()` method will have cached the correct schema for all tables in all attached databases.

So everywhere in the code at the moment that relies on `.inspect()` data needs to be modified to use live introspection of the schema instead.

From [a comment later on](https://github.com/simonw/datasette/issues/420#issuecomment-474398127): here are the uses I need to fix as a checklist:

- [x] `table_exists()`
- [x] `info[""file""]` in `.execute()`
- [x] `resolve_db_name()`
- [x] `.database_url(database)`
- [x] `DatabaseDownload` file path
- [x] `sortable_columns_for_table()` uses it to find the columns in a table
- [x] `expandable_columns()` uses it to find foreign keys
- [x] `expand_foreign_keys()` uses it to find foreign keys
- [x] `display_columns_and_rows()` uses it to find primary keys and foreign keys... but also has access to a cursor.description which it uses to list the columns
- [x] `TableView.data` uses it to lookup columns and primary keys and the table_rows_count (used if the thing isn't a view) and probably a few more things, this method is huge!
- [x] `RowView.data` uses it for primary keys
- [x] `foreign_key_tables()` uses it for foreign keys
- [x] `DatabaseView` list of tables
- [x] `IndexView`
",107914493,issue,,,"{""url"": ""https://api.github.com/repos/simonw/datasette/issues/420/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed
421985685,MDU6SXNzdWU0MjE5ODU2ODU=,421,Documentation for ?_hash=1 and Datasette's hashed URL caching,9599,closed,0,,4305096,2,2019-03-17T23:08:36Z,2019-05-19T05:32:37Z,2019-05-19T05:31:27Z,OWNER,,Follow on from #418 - the Datasette documentation needs an entire section (probably a new page) describing exactly how the hash-in-URL caching mechanism works.,107914493,issue,,,"{""url"": ""https://api.github.com/repos/simonw/datasette/issues/421/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed