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
336936010,MDU6SXNzdWUzMzY5MzYwMTA=,331,Datasette throws error when loading spatialite db without extension loaded,82988,closed,0,,,2,2018-06-29T09:51:14Z,2022-01-20T21:29:40Z,2018-07-10T15:13:36Z,CONTRIBUTOR,,"When starting datasette on a SpatialLite database *without* loading the SpatiaLite extension (using eg `--load-extension=/usr/local/lib/mod_spatialite.dylib`) an error is thrown and the server fails to start:

```
datasette -p 8003 adminboundaries.db 
Serve! files=('adminboundaries.db',) on port 8003
Traceback (most recent call last):
  File ""/Users/ajh59/anaconda3/bin/datasette"", line 11, in <module>
    sys.exit(cli())
  File ""/Users/ajh59/anaconda3/lib/python3.6/site-packages/click/core.py"", line 722, in __call__
    return self.main(*args, **kwargs)
  File ""/Users/ajh59/anaconda3/lib/python3.6/site-packages/click/core.py"", line 697, in main
    rv = self.invoke(ctx)
  File ""/Users/ajh59/anaconda3/lib/python3.6/site-packages/click/core.py"", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File ""/Users/ajh59/anaconda3/lib/python3.6/site-packages/click/core.py"", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File ""/Users/ajh59/anaconda3/lib/python3.6/site-packages/click/core.py"", line 535, in invoke
    return callback(*args, **kwargs)
  File ""/Users/ajh59/anaconda3/lib/python3.6/site-packages/datasette/cli.py"", line 552, in serve
    ds.inspect()
  File ""/Users/ajh59/anaconda3/lib/python3.6/site-packages/datasette/app.py"", line 273, in inspect
    ""tables"": inspect_tables(conn, self.metadata.get(""databases"", {}).get(name, {}))
  File ""/Users/ajh59/anaconda3/lib/python3.6/site-packages/datasette/inspect.py"", line 79, in inspect_tables
    ""PRAGMA table_info({});"".format(escape_sqlite(table))
sqlite3.OperationalError: no such module: VirtualSpatialIndex
``` 

It would be nice to trap this and return a message saying something like:

```
It looks like you're trying to load a SpatiaLite database? Make sure you load in the SpatiaLite extension when starting datasette.

Read more: https://datasette.readthedocs.io/en/latest/spatialite.html
```

",107914493,issue,,,"{""url"": ""https://api.github.com/repos/simonw/datasette/issues/331/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed
291639118,MDU6SXNzdWUyOTE2MzkxMTg=,183,Custom Queries - escaping strings,82988,closed,0,,,2,2018-01-25T16:49:13Z,2019-06-24T06:45:07Z,2019-06-24T06:45:07Z,CONTRIBUTOR,,"If a SQLite table column name contains spaces, they are usually referred to in double quotes:

`SELECT * FROM mytable WHERE ""gappy column name""=""my value"";`

In the JSON metadata file, this is passed by escaping the double quotes:

`""queries"": {""my query"": ""SELECT * FROM mytable WHERE \""gappy column name\""=\""my value\"";""}`

When specifying a custom query in `metadata.json` using double quotes, these are then rendered in the *datasette* query box using single quotes:

`SELECT * FROM mytable WHERE 'gappy column name'='my value';`

which does not work.

Alternatively, a valid custom query can be passed using backticks (\`) to quote the column name and single (unescaped) quotes for the matched value:

``""queries"": {""my query"": ""SELECT * FROM mytable WHERE `gappy column name`='my value';""}``
",107914493,issue,,,"{""url"": ""https://api.github.com/repos/simonw/datasette/issues/183/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed