jonkeane commented on a change in pull request #11032:
URL: https://github.com/apache/arrow/pull/11032#discussion_r727515886
##########
File path: r/tests/testthat/test-duckdb.R
##########
@@ -64,6 +64,53 @@ test_that("to_duckdb", {
)
})
+test_that("to_duckdb then to_arrow", {
+ ds <- InMemoryDataset$create(example_data)
+
+ ds_rt <- ds %>%
+ to_duckdb() %>%
+ # factors don't roundtrip
+ select(-fct) %>%
+ to_arrow()
+
+ expect_identical(
+ collect(ds_rt),
+ ds %>%
+ select(-fct) %>%
+ collect()
+ )
+
+ # And we can continue the pipeline
+ ds_rt <- ds %>%
+ to_duckdb() %>%
+ # factors don't roundtrip
Review comment:
I've added https://github.com/duckdb/duckdb/issues/1879 which talks
about implementing them in duckdb
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