Client APIs
Star Expression
This expression selects all columns of the input source.  
Optionally it's possible to provide an `exclude` list to filter out columns of the table.
This `exclude` list can contain either strings or Expressions.  
```python
import duckdb
import pandas as pd

df = pd.DataFrame({
'a': [1, 2, 3, 4],
'b': [True, None, False, True],
'c': [42, 21, 13, 14]
})

star = duckdb.StarExpression(exclude = ['b'])
res = duckdb.df(df).select(star).fetchall()
print(res)
# [(1, 42), (2, 21), (3, 13), (4, 14)]
```