thisisnic commented on a change in pull request #10269:
URL: https://github.com/apache/arrow/pull/10269#discussion_r633850677



##########
File path: r/R/record-batch.R
##########
@@ -161,7 +161,18 @@ RecordBatch$create <- function(..., schema = NULL) {
     out <- RecordBatch__from_arrays(schema, arrays)
     return(dplyr::group_by(out, !!!dplyr::groups(arrays[[1]])))
   }
-  
+
+  # If any arrays are length 1, recycle them  

Review comment:
       I opened up a ticket to do this in C++, so I figured probably no point 
duplicating that effort? Though if this seems like a special case that's better 
off implemented in the R package's C++ layer rather than the source C++, I can 
look into it.  See discussion on this ticket, @nealrichardson : 
https://issues.apache.org/jira/browse/ARROW-12789




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