html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,issue,performed_via_github_app
https://github.com/simonw/sqlite-utils/issues/86#issuecomment-591770623,https://api.github.com/repos/simonw/sqlite-utils/issues/86,591770623,MDEyOklzc3VlQ29tbWVudDU5MTc3MDYyMw==,9599,2020-02-27T04:12:39Z,2020-02-27T04:12:39Z,OWNER,"I pushed a branch with my experiment in it, but I'm going to fix this by throwing an error on `[` or `]` in a column name instead - I won't implement the changes from that branch.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",564579430,
https://github.com/simonw/sqlite-utils/issues/86#issuecomment-586729798,https://api.github.com/repos/simonw/sqlite-utils/issues/86,586729798,MDEyOklzc3VlQ29tbWVudDU4NjcyOTc5OA==,9599,2020-02-16T17:11:02Z,2020-02-16T17:11:02Z,OWNER,I filed a bug in the Python issue tracker here: https://bugs.python.org/issue39652,"{""total_count"": 2, ""+1"": 2, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",564579430,
https://github.com/simonw/sqlite-utils/issues/86#issuecomment-586676856,https://api.github.com/repos/simonw/sqlite-utils/issues/86,586676856,MDEyOklzc3VlQ29tbWVudDU4NjY3Njg1Ng==,9599,2020-02-16T07:20:34Z,2020-02-16T07:20:34Z,OWNER,"I'm not sure what to do about this one.

I can't fix it: this bug in Python's `sqlite3` module means that even if I write a database out with column names that include `[]` I won't be able to read them back again.

So... I could do one of the following:

- Throw an error if a column name includes those characters. That's my preferred option I think.
- Automatically replace `[` in column names with `(` and `]` with `)`
- Do the automatic replacement but show a user-visible warning when I do it
- Throw an error, but give the user an option to run with e.g. `--fix-column-names` which applies that automatic fix.

Since this is likely to be an incredibly rare edge-case I think I'd rather minimize the amount of code that deals with it, so my preferred option is to just throw that error and stop.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",564579430,
https://github.com/simonw/sqlite-utils/issues/86#issuecomment-586676640,https://api.github.com/repos/simonw/sqlite-utils/issues/86,586676640,MDEyOklzc3VlQ29tbWVudDU4NjY3NjY0MA==,9599,2020-02-16T07:16:31Z,2020-02-16T07:16:31Z,OWNER,"There's something weird about this. I created a test database file like so:
```
sqlite3 /tmp/demo.db <<EOF
    BEGIN TRANSACTION;
    CREATE TABLE ""data"" (
        ""MTU (CET)"" TEXT,
        ""Day-ahead Price [EUR/MWh]"" TEXT
    );
    INSERT INTO ""data"" VALUES('01.01.2016 00:00 - 01.01.2016 01:00','23.86');
    COMMIT;
EOF
```
Then confirmed that it works as expected in SQLite:
```
 $ sqlite3 /tmp/demo.db 
SQLite version 3.24.0 2018-06-04 14:10:15
Enter "".help"" for usage hints.
sqlite> .schema
CREATE TABLE IF NOT EXISTS ""data"" (
        ""MTU (CET)"" TEXT,
        ""Day-ahead Price [EUR/MWh]"" TEXT
    );
sqlite> .headers on
sqlite> select * from data;
MTU (CET)|Day-ahead Price [EUR/MWh]
01.01.2016 00:00 - 01.01.2016 01:00|23.86
sqlite> 
```
BUT... if I open the same database in Python, something weird happens:
```
In [1]: import sqlite3                                                                                                         
In [2]: conn = sqlite3.connect(""/tmp/demo.db"")                                                                                 
In [3]: cursor = conn.cursor()                                                                                                 
In [4]: cursor.execute(""select * from data"")                                                                                   
Out[4]: <sqlite3.Cursor at 0x10c70a0a0>
In [5]: cursor.fetchall()                                                                                                      
Out[5]: [('01.01.2016 00:00 - 01.01.2016 01:00', '23.86')]
In [6]: cursor.description                                                                                                     
Out[6]: 
(('MTU (CET)', None, None, None, None, None, None),
 ('Day-ahead Price', None, None, None, None, None, None))
In [7]: conn.row_factory = sqlite3.Row                                                                                         
In [8]: cursor = conn.cursor()                                                                                                 
In [9]: cursor.execute(""select * from data"")                                                                                   
Out[9]: <sqlite3.Cursor at 0x10c7a8490>
In [10]: row = cursor.fetchall()                                                                                                     
In [12]: row                                                                                                                   
Out[12]: <sqlite3.Row at 0x10c3fe670>
In [15]: row.keys()                                                                                                            
Out[15]: ['MTU (CET)', 'Day-ahead Price']
```
Note that in `cursor.description` AND in `row.keys()` above the second column is displayed as `'Day-ahead Price'` - when we would expect it to be displayed as `Day-ahead Price [EUR/MWh]`

So.... it looks like there may be a bug in Python's `sqlite3` module where columns with square braces in them have that portion of the name stripped out!","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",564579430,
https://github.com/simonw/sqlite-utils/issues/86#issuecomment-586662404,https://api.github.com/repos/simonw/sqlite-utils/issues/86,586662404,MDEyOklzc3VlQ29tbWVudDU4NjY2MjQwNA==,9599,2020-02-16T02:43:12Z,2020-02-16T02:43:12Z,OWNER,"https://stackoverflow.com/a/22694438 looks like the answer:
> When using square brackets, it is not possible to have these characters in the identifier.
> 
> When using double quotes, you can escape them in the name by doubling them:
> 
> `CREATE TABLE ""hello """"world""""""(key INTEGER PRIMARY KEY);`","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",564579430,
https://github.com/simonw/sqlite-utils/issues/86#issuecomment-586661934,https://api.github.com/repos/simonw/sqlite-utils/issues/86,586661934,MDEyOklzc3VlQ29tbWVudDU4NjY2MTkzNA==,9599,2020-02-16T02:33:07Z,2020-02-16T02:33:07Z,OWNER,"Thanks for the example file - looks like it can be trimmed down to just these two lines to replicate the bug:
```csv
""MTU (CET)"",""Day-ahead Price [EUR/MWh]""
""01.01.2016 00:00 - 01.01.2016 01:00"",""23.86""
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",564579430,