Convert this frame into a
pyarrow.Table object. The
module must be installed.
The conversion is multi-threaded and done in C++, but it does involve creating a copy of the data, except for the cases when the data was originally imported from Arrow. This is caused by differences in the data storage formats of datatable and Arrow.
Table object is always returned, even if the source is a
single-column datatable Frame.
pyarrow module is not installed.
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