jonkeane commented on a change in pull request #10992:
URL: https://github.com/apache/arrow/pull/10992#discussion_r701401288
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File path: r/NEWS.md
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@@ -19,6 +19,11 @@
# arrow 5.0.0.9000
+## Breaking changes
+
+* `dplyr::summarize()` on an in-memory Arrow Table or RecordBatch no longer
eagerly evaluates. Call `compute()` or `collect()` to evaluate the query.
+* Row order of data from a Dataset query is no longer deterministic. If you
need a stable sort order, you should explicitly `arrange()` the query.
Review comment:
Should we mention `options(arrow.summarise.sort)` here too?
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