[jira] [Created] (ARROW-2145) decimal conversion not working for NaN values

["Antony Mayi (JIRA)" <ji...@apache.org>]

Antony Mayi created ARROW-2145:
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             Summary: decimal conversion not working for NaN values
                 Key: ARROW-2145
                 URL: https://issues.apache.org/jira/browse/ARROW-2145
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++, Python
    Affects Versions: 0.8.0
            Reporter: Antony Mayi


{code:python}
import pyarrow as pa
import pandas as pd
import decimal

pa.Table.from_pandas(pd.DataFrame({'a': [decimal.Decimal('1.1'), decimal.Decimal('NaN')]}))
{code}

throws following exception:

{code}
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "pyarrow/table.pxi", line 875, in pyarrow.lib.Table.from_pandas (/arrow/python/build/temp.linux-x86_64-3.6/lib.cxx:44927)
  File "/lib/python3.6/site-packages/pyarrow/pandas_compat.py", line 350, in dataframe_to_arrays
    convert_types)]
  File "/lib/python3.6/site-packages/pyarrow/pandas_compat.py", line 349, in <listcomp>
    for c, t in zip(columns_to_convert,
  File "/lib/python3.6/site-packages/pyarrow/pandas_compat.py", line 345, in convert_column
    return pa.array(col, from_pandas=True, type=ty)
  File "pyarrow/array.pxi", line 170, in pyarrow.lib.array (/arrow/python/build/temp.linux-x86_64-3.6/lib.cxx:29224)
  File "pyarrow/array.pxi", line 70, in pyarrow.lib._ndarray_to_array (/arrow/python/build/temp.linux-x86_64-3.6/lib.cxx:28465)
  File "pyarrow/error.pxi", line 98, in pyarrow.lib.check_status (/arrow/python/build/temp.linux-x86_64-3.6/lib.cxx:9068)
pyarrow.lib.ArrowException: Unknown error: an integer is required (got type str)
{code}

Same problem with other special decimal values like {{infinity}}.



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