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
1279144769,I_kwDOCGYnMM5MPjNB,448,Reading rows from a file => AttributeError: '_io.StringIO' object has no attribute 'readinto',236907,closed,0,,,5,2022-06-21T21:48:27Z,2023-05-08T22:01:00Z,2023-05-08T22:01:00Z,NONE,,"Attempting to run the example given here (without extra bracket ;-):
https://sqlite-utils.datasette.io/en/stable/python-api.html#reading-rows-from-a-file
```
from sqlite_utils.utils import rows_from_file
import io

rows, format = rows_from_file(io.StringIO(""id,name\n1,Cleo""))
print(list(rows), format)
# Outputs [{'id': '1', 'name': 'Cleo'}] Format.CSV
```

Gives error
```
>""c:\Program Files\Python37\python.exe"" test2.py
Traceback (most recent call last):
  File ""test2.py"", line 4, in <module>
    rows, format = rows_from_file(io.StringIO(""id,name\n1,Cleo""))
  File ""C:\Users\swood\Downloads\sqlite-utils-main-20220621\sqlite-utils-main\sqlite_utils\utils.py"", line 300, in rows_from_file
    first_bytes = buffered.peek(2048).strip()
AttributeError: '_io.StringIO' object has no attribute 'readinto'
```

I am running Python on Windows.
```
>""c:\Program Files\Python37\python.exe""
Python 3.7.4 (tags/v3.7.4:e09359112e, Jul  8 2019, 20:34:20) [MSC v.1916 64 bit (AMD64)] on win32
Type ""help"", ""copyright"", ""credits"" or ""license"" for more information.
```",140912432,issue,,,"{""url"": ""https://api.github.com/repos/simonw/sqlite-utils/issues/448/reactions"", ""total_count"": 1, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed
1465194249,I_kwDOCGYnMM5XVRcJ,514,upsert of new row with check constraints fails,193185,closed,0,,,5,2022-11-26T16:12:23Z,2023-05-08T21:50:52Z,2023-05-08T21:50:51Z,NONE,,"(I originally opened this in https://github.com/simonw/datasette-insert/issues/20, but I see that that library depends on sqlite-utils)

In the case of a new row, upsert first adds the row, specifying only its pkeys: https://github.com/simonw/sqlite-utils/blob/965ca0d5f5bffe06cc02cd7741344d1ddddf9d56/sqlite_utils/db.py#L2783-L2787

This means that a table with NON NULL (or other constraint) columns that aren't part of the pkey can't have new rows upserted.",140912432,issue,,,"{""url"": ""https://api.github.com/repos/simonw/sqlite-utils/issues/514/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed
1128466114,I_kwDOCGYnMM5DQwbC,406,Creating tables with custom datatypes,82988,open,0,,,5,2022-02-09T12:16:31Z,2022-09-15T18:13:50Z,,NONE,,"Via https://stackoverflow.com/a/18622264/454773 I note the ability to register custom handlers for novel datatypes that can map into and out of things like sqlite `BLOB`s.

From a quick look and a quick play, I didn't spot a way to do this in `sqlite_utils`?

For example:

```python
# Via https://stackoverflow.com/a/18622264/454773
import sqlite3
import numpy as np
import io

def adapt_array(arr):
    """"""
    http://stackoverflow.com/a/31312102/190597 (SoulNibbler)
    """"""
    out = io.BytesIO()
    np.save(out, arr)
    out.seek(0)
    return sqlite3.Binary(out.read())

def convert_array(text):
    out = io.BytesIO(text)
    out.seek(0)
    return np.load(out)


# Converts np.array to TEXT when inserting
sqlite3.register_adapter(np.ndarray, adapt_array)

# Converts TEXT to np.array when selecting
sqlite3.register_converter(""array"", convert_array)
```

```python
from sqlite_utils import Database
db = Database('test.db')

# Reset the database connection to used the parsed datatype
# sqlite_utils doesn't seem to support eg:
#  Database('test.db', detect_types=sqlite3.PARSE_DECLTYPES)
db.conn = sqlite3.connect(db_name, detect_types=sqlite3.PARSE_DECLTYPES)

# Create a table the old fashioned way
# but using the new custom data type
vector_table_create = """"""
CREATE TABLE dummy 
    (title TEXT, vector array );
""""""

cur = db.conn.cursor()
cur.execute(vector_table_create)


# sqlite_utils doesn't appear to support custom types (yet?!)
# The following errors on the ""array"" datatype
""""""
db[""dummy""].create({
    ""title"": str,
    ""vector"": ""array"",
})
""""""
```

We can then add / retrieve records from the database where the datatype of the `vector` field is a custom registered `array` type (which is to say, a `numpy` array):

```python
import numpy as np

db[""dummy""].insert({'title':""test1"", 'vector':np.array([1,2,3])})

for row in db.query(""SELECT * FROM dummy""):
    print(row['title'], row['vector'], type(row['vector']))

""""""
test1 [1 2 3] <class 'numpy.ndarray'>
""""""
```

It would be handy to be able to do this idiomatically in `sqlite_utils`.",140912432,issue,,,"{""url"": ""https://api.github.com/repos/simonw/sqlite-utils/issues/406/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,
1236693079,I_kwDOCGYnMM5JtnBX,432,"Support `rows_where()`, `delete_where()` etc for attached alias databases",11597658,open,0,,,5,2022-05-16T06:38:58Z,2022-06-14T22:16:48Z,,NONE,,"Hi,

I noticed `rows_where()` doesn't return any rows from tables which are from attached databases. The `exists()` function returns false. As far as I can see this is because the `table_names()` function only looks for table names in the current database and not in attached (or temp) databases.

Besides, `rows_where()`, also `insert_all()` and `delete_where()` didn't do what I was expecting because of this. For the moment I've patched `table_names()` for myself, see below but I'm not sure what the total impact is on the other functions like lookup truncate etc which all use `exists()`. Also `view_names()` doesn't look for views in attached or temp databases. 
```python
 def table_names(self, fts4: bool = False, fts5: bool = False) -> List[str]:
        ""A list of string table names in this database.""
        where = [""type = 'table'""]
        if fts4:
            where.append(""sql like '%USING FTS4%'"")
        if fts5:
            where.append(""sql like '%USING FTS5%'"")
        dbs = [x[1] for x in self.execute('pragma database_list').fetchall()]    
        lst=[]
        for db in dbs:    
            sql = ""select name from {} where {}"".format(db+"".sqlite_master"","" AND "".join(where))
            lst.extend(r[0] for r in self.execute(sql).fetchall())
        return lst
```",140912432,issue,,,"{""url"": ""https://api.github.com/repos/simonw/sqlite-utils/issues/432/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,
711649325,MDU6SXNzdWU3MTE2NDkzMjU=,182,"Better handling of encodings other than utf-8 for ""sqlite-utils insert""",765871,closed,0,,,5,2020-09-30T05:43:48Z,2020-10-16T17:20:41Z,2020-10-16T17:18:52Z,NONE,,"Makefile:
```
data.db:
        curl -O http://maps.natalian.org/data.txt
        go run csv-write.go > data.csv
        sqlite-utils insert data.db travels data.csv --csv

clean:
        rm data*
```
[csv-write.go](https://gist.github.com/kaihendry/dff2442de20d73f900026d13bf7a11d9)


Error message is:

```
sqlite-utils insert data.db travels data.csv --csv
Traceback (most recent call last):
  File ""/home/hendry/.local/bin/sqlite-utils"", line 8, in <module>
    sys.exit(cli())
  File ""/home/hendry/.local/lib/python3.8/site-packages/click/core.py"", line 829, in __call__
    return self.main(*args, **kwargs)
  File ""/home/hendry/.local/lib/python3.8/site-packages/click/core.py"", line 782, in main
    rv = self.invoke(ctx)
  File ""/home/hendry/.local/lib/python3.8/site-packages/click/core.py"", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File ""/home/hendry/.local/lib/python3.8/site-packages/click/core.py"", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File ""/home/hendry/.local/lib/python3.8/site-packages/click/core.py"", line 610, in invoke
    return callback(*args, **kwargs)
  File ""/home/hendry/.local/lib/python3.8/site-packages/sqlite_utils/cli.py"", line 614, in insert
    insert_upsert_implementation(
  File ""/home/hendry/.local/lib/python3.8/site-packages/sqlite_utils/cli.py"", line 553, in insert_upsert_implementation
    headers = next(reader)
  File ""/usr/lib/python3.8/codecs.py"", line 322, in decode
    (result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe3 in position 1234: invalid continuation byte
make: *** [Makefile:4: data.db] Error 1
[hendry@t14s datasette-map]$ sqlite-utils --version
sqlite-utils, version 2.19
```

Little bit surprised if Go is spewing out bad Unicode, but I'm not sure how to grok `position 1234`..
",140912432,issue,,,"{""url"": ""https://api.github.com/repos/simonw/sqlite-utils/issues/182/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed
500783373,MDU6SXNzdWU1MDA3ODMzNzM=,62,[enhancement] Method to delete a row in python,4454869,closed,0,,,5,2019-10-01T09:45:47Z,2019-11-04T16:30:34Z,2019-11-04T16:18:18Z,NONE,,"Hi !
Thanks for the lib !

Obviously, every possible sql queries won't have a dedicated method.

But I was thinking : a method to delete a row (I'm terrible with names, maybe `delete_where()` or something, would be useful.

I have a Database, with primary key.

For the moment, I use :

```Python3
db.conn.execute(f""DELETE FROM table WHERE key = {key_id}"")
db.conn.commit()
```
to delete a row I don't need anymore, giving his primary key.

Works like a charm.

Just an idea :

```Python3
table.delete_where_pkey({'key': key_id})
```
or something (I know, I'm terrible at naming methods...).

Pros : well, no need to write SQL query.

Cons : WHERE normally allows to do many more things (operators =, <>, >, <, BETWEEN), not to mention AND, OR, etc...
Method is maybe to specific, and/or a pain to render more flexible.

Again, just a thought. Writing his own sql works too, so...

Thanks again.
See yah.",140912432,issue,,,"{""url"": ""https://api.github.com/repos/simonw/sqlite-utils/issues/62/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed
480961330,MDU6SXNzdWU0ODA5NjEzMzA=,54,"Ability to list views, and to access db[""view_name""].rows / rows_where / etc",20264,closed,0,,,5,2019-08-15T02:00:28Z,2019-08-23T12:41:09Z,2019-08-23T12:20:15Z,NONE,,"The docs show me how to create a view via `db.create_view()` but I can't seem to get back to that view post-creation; if I query it as a table it returns `None`, and it doesn't appear in the table listing, even though querying the view works fine from inside the sqlite3 command-line.

It'd be great to have the view as a pseudo-table, or if the python/sqlite3 module makes that hard to pull off (I couldn't figure it out), to have that edge-case documented next to the `db.create_view()` docs.",140912432,issue,,,"{""url"": ""https://api.github.com/repos/simonw/sqlite-utils/issues/54/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed