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Issue

This Content is from Stack Overflow. Question asked by daniel guo

I have two Pyarrow Tables and want to join both.

A.join(
        right_table=B, keys="A_id", right_keys="B_id"
    )

Now I got the following error:

{ArrowInvalid} Incompatible data types for corresponding join field keys: FieldRef.Name(A_id) of type int8 and FieldRef.Name(B_id) of type int16

What is the preferred way to solve this issue?

I did not find a way to cast one column to either int8 or int16 in pyarrow Table.

Thanks

Solution

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