[GitHub] [arrow] nealrichardson commented on a change in pull request #10722: ARROW-13344: [R] Initial bindings for ExecPlan/ExecNode

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nealrichardson commented on a change in pull request #10722:
URL: https://github.com/apache/arrow/pull/10722#discussion_r682578342



##########
File path: r/R/dplyr-summarize.R
##########
@@ -28,14 +28,107 @@ summarise.arrow_dplyr_query <- function(.data, ..., .engine = c("arrow", "duckdb
     dplyr::group_vars(.data) # vars needed for grouping
   ))
   .data <- dplyr::select(.data, vars_to_keep)
-
   if (match.arg(.engine) == "duckdb") {
     dplyr::summarise(to_duckdb(.data), ...)
-  } else {
-    if (query_on_dataset(.data)) {
-      not_implemented_for_dataset("summarize()")
+  } else if (isTRUE(getOption("arrow.summarize", FALSE))) {
+    # Try stuff, if successful return()
+    out <- try(do_arrow_summarize(.data, ...), silent = TRUE)
+    if (inherits(out, "try-error")) {
+      return(abandon_ship(call, .data, format(out)))
+    } else {
+      return(out)
     }
+  } else {
+    # If unsuccessful or if option not set, do the work in R
     dplyr::summarise(dplyr::collect(.data), ...)

Review comment:
       Maybe so but it doesn't in the released version, and we'll be deleting this else case before release




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