html_url,issue_url,id,node_id,user,user_label,created_at,updated_at,author_association,body,reactions,issue,issue_label,performed_via_github_app
https://github.com/simonw/sqlite-utils/issues/73#issuecomment-571138093,https://api.github.com/repos/simonw/sqlite-utils/issues/73,571138093,MDEyOklzc3VlQ29tbWVudDU3MTEzODA5Mw==,82988,psychemedia,2020-01-06T13:28:31Z,2020-01-06T13:28:31Z,NONE,"I think I actually had several issues in play...

The missing key was one, but I think there is also an issue as per below.

For example, in the following:

```python
def init_testdb(dbname='test.db'):
    
    if os.path.exists(dbname):
        os.remove(dbname)

    conn = sqlite3.connect(dbname)
    db = Database(conn)
    
    return conn, db

conn, db = init_testdb()

c = conn.cursor()
c.executescript('CREATE TABLE ""test1"" (""Col1"" TEXT, ""Col2"" TEXT, PRIMARY KEY (""Col1""));')
c.executescript('CREATE TABLE ""test2"" (""Col1"" TEXT, ""Col2"" TEXT, PRIMARY KEY (""Col1""));')

print('Test 1...')
for i in range(3):
    db['test1'].upsert_all([{'Col1':'a', 'Col2':'x'},{'Col1':'b', 'Col2':'x'}], pk=('Col1'))
    db['test2'].upsert_all([{'Col1':'a', 'Col2':'x'},{'Col1':'b', 'Col2':'x'}], pk=('Col1'))

print('Test 2...')
for i in range(3):
    db['test1'].upsert_all([{'Col1':'a', 'Col2':'x'},{'Col1':'b', 'Col2':'x'}], pk=('Col1'))
    db['test2'].upsert_all([{'Col1':'a', 'Col2':'x'},{'Col1':'b', 'Col2':'x'},
                            {'Col1':'c','Col2':'x'}], pk=('Col1'))
print('Done...')

---------------------------------------------------------------------------
Test 1...
Test 2...
 IndexError: list index out of range 
---------------------------------------------------------------------------
IndexError                                Traceback (most recent call last)
<ipython-input-763-444132ca189f> in <module>
     22 print('Test 2...')
     23 for i in range(3):
---> 24     db['test1'].upsert_all([{'Col1':'a', 'Col2':'x'},{'Col1':'b', 'Col2':'x'}], pk=('Col1'))
     25     db['test2'].upsert_all([{'Col1':'a', 'Col2':'x'},{'Col1':'b', 'Col2':'x'},
     26                             {'Col1':'c','Col2':'x'}], pk=('Col1'))

/usr/local/lib/python3.7/site-packages/sqlite_utils/db.py in upsert_all(self, records, pk, foreign_keys, column_order, not_null, defaults, batch_size, hash_id, alter, extracts)
   1157             alter=alter,
   1158             extracts=extracts,
-> 1159             upsert=True,
   1160         )
   1161 

/usr/local/lib/python3.7/site-packages/sqlite_utils/db.py in insert_all(self, records, pk, foreign_keys, column_order, not_null, defaults, batch_size, hash_id, alter, ignore, replace, extracts, upsert)
   1097                 # self.last_rowid will be 0 if a ""INSERT OR IGNORE"" happened
   1098                 if (hash_id or pk) and self.last_rowid:
-> 1099                     row = list(self.rows_where(""rowid = ?"", [self.last_rowid]))[0]
   1100                     if hash_id:
   1101                         self.last_pk = row[hash_id]

IndexError: list index out of range
```

the first test works but the second fails. Is the length of the list of items being upserted leaking somewhere?","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",545407916,upsert_all() throws issue when upserting to empty table,
https://github.com/simonw/datasette/issues/576#issuecomment-571366326,https://api.github.com/repos/simonw/datasette/issues/576,571366326,MDEyOklzc3VlQ29tbWVudDU3MTM2NjMyNg==,9599,simonw,2020-01-06T23:50:33Z,2020-01-06T23:50:33Z,OWNER,I wrote about this a bit here: https://simonwillison.net/2020/Jan/6/sitemap-xml/,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",497170355,Documented internals API for use in plugins,