jorisvandenbossche commented on code in PR #42223:
URL: https://github.com/apache/arrow/pull/42223#discussion_r1699582642
##########
python/pyarrow/table.pxi:
##########
@@ -3549,6 +3549,29 @@ cdef class RecordBatch(_Tabular):
row_major, pool))
return pyarrow_wrap_tensor(c_tensor)
+ def copy_to(self, MemoryManager memory_manager):
+ """
+ Copy the entire RecordBatch to destination MemoryManager.
+
+ This copies each column of the record batch to create
+ a new record batch where all underlying buffers for the columns have
+ been copied to the destination MemoryManager.
+
+ Parameters
+ ----------
+ memory_manager : pyarrow.MemoryManager
+
+ Returns
+ ------
+ RecordBatch
+ """
+ cdef:
+ shared_ptr[CRecordBatch] c_batch
+
+ with nogil:
+ c_batch =
GetResultValue(self.batch.CopyTo(memory_manager.unwrap()))
Review Comment:
Ah, yes, with the current design it is a required keyword and so I should
protect it from not being None (add a `not None` in the signature).
But we might want to allow it to be None, and in that case use the source's
memory manager as destination device (i.e. copy to the same device)?
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