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
410384988,MDU6SXNzdWU0MTAzODQ5ODg=,411,How to pass named parameter into spatialite MakePoint() function,1055831,closed,0,,,3,2019-02-14T16:30:22Z,2023-10-25T13:23:04Z,2019-05-05T12:25:04Z,NONE,,"Hi,
datasette version: ""0.26.2""
extensions: 
       spatialite: ""4.4.0-RC0""
sqlite version: ""3.22.0""

I have a table of airports with latitude and longitude columns.  I've added spatialite (with KNN support).  After creating the db using csvs-to-sqlit, I run these commands to setup the spatialite tables:

```
conn.execute('SELECT InitSpatialMetadata(1)')

conn.execute(""SELECT AddGeometryColumn('airports', 'point_geom', 4326, 'POINT', 2);"")

conn.execute('''UPDATE airports SET point_geom = GeomFromText('POINT('||""longitude""||' '||""latitude""||')',4326);''')

conn.execute(""SELECT CreateSpatialIndex('airports', 'point_geom');"")
```

I'm attempting to create a canned query and have this in my metadata.json file:
```
""find_airports_nearest_to_point"":{
    ""sql"":""SELECT a.pos AS rank, b.id, b.name, b.country, b.latitude AS latitude, b.longitude AS longitude, a.distance / 1000.0 AS dist_km FROM KNN AS a JOIN airports AS b ON (b.rowid = a.fid) WHERE f_table_name = \""airports\"" AND ref_geometry = MakePoint( :Long , :Lat ) AND max_items = 10;""}
```
which doesn't seem to perform the templating of the name parameters correctly and I get no results.  

Have also tired:
```
MakePoint( || :Long || , || :Lat || )
```
which returns this error:
```
near ""||"": syntax error
```

However I cannot seem to find the correct combination of named parameter syntax (:Lat) or sqlite concatenation operator to make it work.  Any ideas if using named parameters inside functions is supported?

Thanks
Darren",107914493,issue,,,"{""url"": ""https://api.github.com/repos/simonw/datasette/issues/411/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed
440332621,MDU6SXNzdWU0NDAzMzI2MjE=,453,Error pages do not return CORS header with --cors,9599,closed,0,,,1,2019-05-04T15:07:44Z,2019-05-05T12:24:24Z,2019-05-05T12:11:33Z,OWNER,,"This is very confusing. It means that if you send invalid SQL you will get back a CORS error, because the resulting 400 page cannot be accessed via JavaScript.",107914493,issue,,,"{""url"": ""https://api.github.com/repos/simonw/datasette/issues/453/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed