[GitHub] [arrow] paleolimbot commented on a diff in pull request #14337: ARROW-17954: [R] Update news for 10.0

[GitBox <gi...@apache.org>]

paleolimbot commented on code in PR #14337:
URL: https://github.com/apache/arrow/pull/14337#discussion_r997421476


##########
r/NEWS.md:
##########
@@ -19,6 +19,61 @@
 
 # arrow 9.0.0.9000
 
+## Arrow dplyr queries
+
+Several new functions can be used in queries: 
+
+* `dplyr::across()` can be used to apply the same computation across multiple 
+  columns;
+* `add_filename()` can be used to get the filename a row came from (only 
+  available when querying `?Dataset`);

Review Comment:
   ```suggestion
     available when querying a `Dataset`);
   ```
   
   (I see question marks in a few other places so maybe that's intentional...I think that pkgdown takes care of the linking for you but maybe that's only for functions?)



##########
r/NEWS.md:
##########
@@ -19,6 +19,61 @@
 
 # arrow 9.0.0.9000
 
+## Arrow dplyr queries
+
+Several new functions can be used in queries: 
+
+* `dplyr::across()` can be used to apply the same computation across multiple 
+  columns;
+* `add_filename()` can be used to get the filename a row came from (only 
+  available when querying `?Dataset`);
+* Five functions in the `slice_*` family: `dplyr::slice_min()`, 
+  `dplyr::slice_max()`, `dplyr::slice_head()`, `dplyr::slice_tail()`, and
+  `dplyr::slice_sample()`.
+
+A full list of functions available in queries is available at `?acero`.
+
+A few new features and bugfixes were implemented for joins.
+Extension arrays are now supported in joins, allowing, for example, joining 
+datasets that contain [geoarrow](https://paleolimbot.github.io/geoarrow/) data.
+The `keep` argument is now supported, allowing separate columns for the left
+and right hand side join keys in join output. Full joins now coalesce the 
+join keys (when `keep = FALSE`), avoiding the issue where the join keys would 
+be all `NA` for rows in the right hand side without any matches on the left.
+
+A few breaking changes: Calling `dplyr::pull()` will return a `?ChunkedArray` 
+instead of an R vector. Calling `dplyr::compute()` on a query that is grouped 
+returns a `?Table`, instead of an query object.
+
+Finally, long-running queries can now be cancelled and will abort their 
+computation immediately.
+
+## Arrays and tables
+
+`as_arrow_array()` can now take `blob::blob` and `?vctrs::list_of`, which
+convert to binary and list arrays, respectively. Also fixed issue where 

Review Comment:
   ```suggestion
   convert to binary and list arrays, respectively. Also fixed an issue where 
   ```



##########
r/NEWS.md:
##########
@@ -19,6 +19,61 @@
 
 # arrow 9.0.0.9000
 
+## Arrow dplyr queries
+
+Several new functions can be used in queries: 
+
+* `dplyr::across()` can be used to apply the same computation across multiple 
+  columns;
+* `add_filename()` can be used to get the filename a row came from (only 
+  available when querying `?Dataset`);
+* Five functions in the `slice_*` family: `dplyr::slice_min()`, 

Review Comment:
   ```suggestion
   * Added five functions in the `slice_*` family: `dplyr::slice_min()`, 
   ```



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