[GitHub] [arrow-site] thisisnic commented on a change in pull request #158: R blog post

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thisisnic commented on a change in pull request #158:
URL: https://github.com/apache/arrow-site/pull/158#discussion_r742301432



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File path: _posts/2021-11-01-r-6.0.0.md
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@@ -0,0 +1,140 @@
+---
+layout: post
+title: Apache Arrow R 6.0.0 Release
+date: "2021-11-01"
+author: 
+categories: [release]
+---
+<!--
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+{% endcomment %}
+-->
+
+# Grouped aggregation
+
+Aggregations can now be made across groups using dplyr’s `group_by() %>% summarise()` syntax. Arrow 5.0.0 allowed `summarise()` to aggregate across a whole dataset, but 6.0.0 now allows you to aggregate across groups with `group_by()`. These are usable both with in-memory Arrow tables as well as across partitioned datasets. As usual, Arrow will read and process data in chunks and in parallel when possible to produce results much faster than one could by loading it all into memory then processing and even better, allows for operations that wouldn’t fit into memory on a single machine.

Review comment:
       I think it did - https://github.com/apache/arrow/pull/10191 - the release was like July, right?




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