westonpace commented on issue #11648:
URL: https://github.com/apache/arrow/issues/11648#issuecomment-965581002
I didn't realize the question was about tables. Tables are simply a
collection of record batches with the same schema. So you can append to a
table by creating a new table with the new record batch. For example, in
pyarrow:
```
>>> import pyarrow as pa
>>> t1 = pa.Table.from_pydict({'a': [1, 2, 3], 'b': ['x', 'y', 'z']})
>>> t2 = pa.Table.from_pydict({'a': [4, 5, 6], 'b': ['a', 'b', 'c']})
>>> combined = pa.Table.from_batches(t1.to_batches() + t2.to_batches())
>>> combined.to_pydict()
{'a': [1, 2, 3, 4, 5, 6], 'b': ['x', 'y', 'z', 'a', 'b', 'c']}
```
If you truly need each array to be a contiguous region in memory then
@edponce 's advice about concatenating is the way to go.
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