Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/13774#discussion_r67721810
--- Diff: R/pkg/R/functions.R ---
@@ -911,6 +911,33 @@ setMethod("minute",
column(jc)
})
+#' monotonically_increasing_id
+#'
+#' Return a column that generates monotonically increasing 64-bit integers.
+#'
+#' The generated ID is guaranteed to be monotonically increasing and
unique, but not consecutive.
+#' The current implementation puts the partition ID in the upper 31 bits,
and the record number
+#' within each partition in the lower 33 bits. The assumption is that the
data frame has
--- End diff --
Nice catch! We should use `SparkDataFrame` here for consistency.
I'll fix this, too!
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