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
1076388044,I_kwDOBm6k_c5AKGDM,1547,Writable canned queries fail to load custom templates,127565,closed,0,,7571612,6,2021-12-10T03:31:48Z,2022-01-13T22:27:59Z,2021-12-19T21:12:00Z,CONTRIBUTOR,,"I've created a canned query with `""write"": true` set. I've also created a custom template for it, but the template doesn't seem to be found. If I look in the HTML I see (`stock_exchange` is the db name):

`<!-- Templates considered: query-stock_exchange.html, *query.html -->`

My non-writeable canned queries pick up custom templates as expected, and if I look at their HTML I see the canned query name added to the templates considered (the canned query here is `date_search`):

`<!-- Templates considered: query-stock_exchange-date_search.html, query-stock_exchange.html, *query.html -->`

So it seems like the writeable canned query is behaving differently for some reason. Is it an authentication thing? I'm using the built in `--root` authentication.

Thanks!
",107914493,issue,,,"{""url"": ""https://api.github.com/repos/simonw/datasette/issues/1547/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed
1083927147,I_kwDOBm6k_c5Am2pr,1571,Track number of executions for execute_write_many() in traces,9599,closed,0,,7571612,0,2021-12-18T19:16:17Z,2022-01-13T22:27:49Z,2021-12-19T20:30:40Z,OWNER,,"Spotted while working on #1555

<img width=""1171"" alt=""image"" src=""https://user-images.githubusercontent.com/9599/146653166-ce5358bc-b822-4961-a2dd-ed3efaa8dd13.png"">

There's no indication there of how many times `execute_write_many()` executed the SQL.

Solving this is a tiny bit tricky because `params_seq` is an iterator that we don't want to exhaust before passing it to `conn.executemany()` - so we need to instead wrap it in something that counts how many times it was called.

But then we need a way to attach that to the trace here: https://github.com/simonw/datasette/blob/d637ed46762fdbbd8e32b86f258cd9a53c1cfdc7/datasette/database.py#L115-L122

So probably need to redesign the `trace()` decorator to allow extra pairs to be attached to it within the `with` statement.

",107914493,issue,,,"{""url"": ""https://api.github.com/repos/simonw/datasette/issues/1571/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed
1084007781,I_kwDOBm6k_c5AnKVl,1572,"""Query took"" should be ""Queries took""",9599,closed,0,,7571612,0,2021-12-19T04:03:00Z,2022-01-13T22:27:43Z,2021-12-19T04:03:24Z,OWNER,,"This is misleading, since usually there have been more than one query executed:

![CleanShot 2021-12-18 at 20 02 35@2x](https://user-images.githubusercontent.com/9599/146663457-9c4c2900-5cc0-4650-a565-bb1ff0b8a725.png)

",107914493,issue,,,"{""url"": ""https://api.github.com/repos/simonw/datasette/issues/1572/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed
1079149656,I_kwDOBm6k_c5AUoRY,1555,Optimize all those calls to index_list and foreign_key_list,9599,closed,0,,7571612,27,2021-12-13T23:50:56Z,2022-01-13T22:27:32Z,2021-12-19T20:55:59Z,OWNER,,"On the first hit to a restarted index I'm seeing this in the SQL traces: https://latest-with-plugins.datasette.io/github/commits?_trace=1

<img width=""826"" alt=""image"" src=""https://user-images.githubusercontent.com/9599/145907011-e4abc93c-8dbf-468d-afef-13d5e7463f92.png"">

I imagine this could be sped up a lot using tricks like this one from the SQLite documentation: https://sqlite.org/pragma.html#pragfunc

```sql
SELECT DISTINCT m.name || '.' || ii.name AS 'indexed-columns'
  FROM sqlite_schema AS m,
       pragma_index_list(m.name) AS il,
       pragma_index_info(il.name) AS ii
 WHERE m.type='table'
 ORDER BY 1;
```
https://latest-with-plugins.datasette.io/fixtures?sql=SELECT+DISTINCT+m.name+%7C%7C+%27.%27+%7C%7C+ii.name+AS+%27indexed-columns%27%0D%0A++FROM+sqlite_schema+AS+m%2C%0D%0A+++++++pragma_index_list%28m.name%29+AS+il%2C%0D%0A+++++++pragma_index_info%28il.name%29+AS+ii%0D%0A+WHERE+m.type%3D%27table%27%0D%0A+ORDER+BY+1%3B",107914493,issue,,,"{""url"": ""https://api.github.com/repos/simonw/datasette/issues/1555/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed