jonkeane opened a new pull request #10780:
URL: https://github.com/apache/arrow/pull/10780
A proposed interface for using DuckDB + Arrow together.
I've added two methods:
* The proposed `summarise(..., .engine = "duckdb")` method which is
(probably) the method that people want to use
* A lower-level method of specifying exactly when the transfer takes
place. I've called this `alchemize_*` for now, though we might consider wedging
it into `collect()` or `compute()` (or something like `collect_to_duckdb()` to
be super explicit[1]).
* I've made a proof-of-concept that the `alchemize_*` can also work with
Python — this is basically a renaming/wrapping of `r_to_py` / `py_to_r`. If we
do peruse exposing `alchemize_*` or the like, I will fill out the rest of these
(we should keep both around, though r_to_py isn't currently documented so
probably isn't getting much use).
[1] I've tried both a more magical `alchemize(x, to = c("arrow", "duckdb",
"python))` the changes behavior / output based on the `to` argument, which we
can go back to if we want that simplicity, but I found it harder to reason
about what I was getting out. Where as with `alchemize_to_duckdb()` the
function says exactly what's going on.
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