PNDSPY1031¶

Message Pandas < pandas.core.frame.DataFrame.dataframe > has a partial mapping with a few scenarios not supported in Snowpark.

Category Warning

Description¶

This issue appears when the SMA detects the use of a pandas element that has a direct equivalent in Snowpark pandas, but some scenarios might behave differently than pandas.

Reason: N for columns of type Timedelta and columns containing list objects.

Scenario¶

A method with a few scenarios that aren’t supported in Snowpark.

Input¶

The following example shows a method with a few unsupported scenarios in Snowpark.

import pandas as pd

df = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]})
result = pd.__dataframe__(df)

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Output¶

The SMA adds the EWI PNDSPY1031 to the output code to let you know that this element has a few scenarios that aren’t supported in Snowpark.

import snowflake.snowpark.modin.pandas as pd

#EWI: PNDSPY1031 => pandas.core.frame.DataFrame.__dataframe__ has a partial mapping, with few scenarios not supported. Check Snowpark pandas documentation for more detail.
df = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]})
result = pd.__dataframe__(df)

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Recommended fix¶

Data type consideration: N for columns of type Timedelta and columns containing list objects.

Ensure data types are compatible:

Check column dtypes with df.dtypes before the operation
Use .astype() to convert columns to expected types
Numeric operations may require explicit casting: df['col'].astype(float)

Additional recommendations¶

Check the Snowpark pandas documentation to verify which scenarios aren’t supported for that specific element.