small improvements to duckdb docs

[TyDunn]

I am unable to load data from the chess.com API to DuckDB after following the instructions in the docs. I get the following error when I try to run it:

Traceback (most recent call last):
  File "/usr/local/lib/python3.10/site-packages/dlt/destinations/sql_client.py", line 138, in _wrap
    return f(self, *args, **kwargs)
  File "/usr/local/lib/python3.10/site-packages/dlt/destinations/duckdb/sql_client.py", line 35, in open_connection
    self._conn.execute(f"SET {k} = '{v}'")
duckdb.BinderException: Binder Error: Catalog "chess_data" does not exist!

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/ty/Documents/dlthub/test-duckdb/chess.py", line 111, in <module>
    info = p.run(
  File "/usr/local/lib/python3.10/site-packages/dlt/pipeline/pipeline.py", line 99, in _wrap
    step_info = f(self, *args, **kwargs)
  File "/usr/local/lib/python3.10/site-packages/dlt/pipeline/pipeline.py", line 130, in _wrap
    return f(self, *args, **kwargs)
  File "/usr/local/lib/python3.10/site-packages/dlt/pipeline/pipeline.py", line 477, in run
    self.sync_destination(destination, dataset_name)
  File "/usr/local/lib/python3.10/site-packages/dlt/pipeline/pipeline.py", line 73, in _wrap
    rv = f(self, *args, **kwargs)
  File "/usr/local/lib/python3.10/site-packages/dlt/pipeline/pipeline.py", line 519, in sync_destination
    remote_state = self._restore_state_from_destination()
  File "/usr/local/lib/python3.10/site-packages/dlt/pipeline/pipeline.py", line 954, in _restore_state_from_destination
    job_client.sql_client.open_connection()
  File "/usr/local/lib/python3.10/site-packages/dlt/destinations/sql_client.py", line 140, in _wrap
    raise DestinationConnectionError(type(self).__name__, self.dataset_name, str(ex), ex)
dlt.destinations.exceptions.DestinationConnectionError: Connection with DuckDbSqlClient to dataset name chess_data failed. Please check if you configured the credentials at all and provided the right credentials values. You can be also denied access or your internet connection may be down. The actual reason given is: Binder Error: Catalog "chess_data" does not exist!

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[TyDunn]

@rudolfix I followed the docs exactly. How can I avoid getting this error?

[rudolfix]

ducklabs released duckdb 0.7 yesterday where the programming interface was changed freely. the situation above is normal but was silently handled. now the exception they raise is different. I'll switch the duckdb to next version and try to release. you can also do pip install duckdb==0.6.1 which will downgrade

[rudolfix]

I'm merging the PR. I will fix it starting from devel

[rudolfix]

thanks for the fixes!