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Posted to issues@arrow.apache.org by "Dave Challis (JIRA)" <ji...@apache.org> on 2018/04/06 11:45:00 UTC
[jira] [Updated] (ARROW-2391) [Python] Segmentation fault from
PyArrow when mapping Pandas datetime column to pyarrow.date64
[ https://issues.apache.org/jira/browse/ARROW-2391?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dave Challis updated ARROW-2391:
--------------------------------
Description:
When trying to call `pyarrow.Table.from_pandas` with a `pandas.DataFrame` and a `pyarrow.Schema` provided, the function call results in a segmentation fault if Pandas `datetime64[ns]` column tries to be converted to a `pyarrow.date64` type.
A minimal example which shows this is:
{code:python}
import pandas as pd
import pyarrow as pa
df = pd.DataFrame({'created': ['2018-05-10T10:24:01']})
df['created'] = pd.to_datetime(df['created'])}}
schema = pa.schema([pa.field('created', pa.date64())])
pa.Table.from_pandas(df, schema=schema)
{code}
Executing the above causes the python interpreter to exit with "Segmentation fault: 11".
Attempting to convert into various other datatypes (by specifying different schemas) either succeeds, or raises an exception if the conversion is invalid.
was:
When trying to call `pyarrow.Table.from_pandas` with a `pandas.DataFrame` and a `pyarrow.Schema` provided, the function call results in a segmentation fault if Pandas `datetime64[ns]` column tries to be converted to a `pyarrow.date64` type.
A minimal example which shows this is:
{{import pandas as pd}}
{{import pyarrow as pa}}
{{df = pd.DataFrame(\{'created': ['2018-05-10T10:24:01']})}}
{{df['created'] = pd.to_datetime(df['created'])}}
{{schema = pa.schema([pa.field('created', pa.date64())])}}
{{pa.Table.from_pandas(df, schema=schema)}}
Executing the above causes the python interpreter to exit with "Segmentation fault: 11".
Attempting to convert into various other datatypes (by specifying different schemas) either succeeds, or raises an exception if the conversion is invalid.
Summary: [Python] Segmentation fault from PyArrow when mapping Pandas datetime column to pyarrow.date64 (was: Segmentation fault from PyArrow when mapping Pandas datetime column to pyarrow.date64)
> [Python] Segmentation fault from PyArrow when mapping Pandas datetime column to pyarrow.date64
> ----------------------------------------------------------------------------------------------
>
> Key: ARROW-2391
> URL: https://issues.apache.org/jira/browse/ARROW-2391
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Affects Versions: 0.9.0
> Environment: Mac OS High Sierra
> Python 3.6
> Reporter: Dave Challis
> Priority: Major
>
> When trying to call `pyarrow.Table.from_pandas` with a `pandas.DataFrame` and a `pyarrow.Schema` provided, the function call results in a segmentation fault if Pandas `datetime64[ns]` column tries to be converted to a `pyarrow.date64` type.
> A minimal example which shows this is:
> {code:python}
> import pandas as pd
> import pyarrow as pa
> df = pd.DataFrame({'created': ['2018-05-10T10:24:01']})
> df['created'] = pd.to_datetime(df['created'])}}
> schema = pa.schema([pa.field('created', pa.date64())])
> pa.Table.from_pandas(df, schema=schema)
> {code}
> Executing the above causes the python interpreter to exit with "Segmentation fault: 11".
> Attempting to convert into various other datatypes (by specifying different schemas) either succeeds, or raises an exception if the conversion is invalid.
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