Matthew Gilbert created ARROW-2136:
--------------------------------------
Summary: Non nullable schema ignored
Key: ARROW-2136
URL: https://issues.apache.org/jira/browse/ARROW-2136
Project: Apache Arrow
Issue Type: Bug
Components: Python
Affects Versions: 0.8.0
Reporter: Matthew Gilbert
If you provide a schema with {{nullable=False}} but pass a {{DataFrame}} which
in fact has nulls it appears the schema is ignored? I would expect an error
here.
{code:python}
df = pd.DataFrame({"a":[1.2, 2.1, pd.np.NaN]})
schema = pa.schema([pa.field("a", pa.float64(), nullable=False)])
table = pa.Table.from_pandas(df, schema=schema)
table[0]
<pyarrow.lib.Column object at 0x7f213bf2fb70>
chunk 0: <pyarrow.lib.DoubleArray object at 0x7f213bf20ea8>
[
1.2,
2.1,
NA
]
{code}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
