wjones127 commented on code in PR #12751:
URL: https://github.com/apache/arrow/pull/12751#discussion_r848613394
##########
r/R/record-batch.R:
##########
@@ -189,3 +189,61 @@ record_batch <- RecordBatch$create
#' @export
names.RecordBatch <- function(x) x$names()
+
+#' @export
+rbind.RecordBatch <- function(...) {
+ abort("Use `Table$create()` to combine record batches")
+}
+
+cbind_check_length <- function(target_length, length, idx) {
+ if (length != target_length) {
+ abort(
+ sprintf(
+ "Non-scalar inputs must have an equal number of rows. ..1 has %d, ..%d
has %d",
+ target_length,
+ idx,
+ length
+ )
+ )
+ }
+}
+
+#' @export
+cbind.RecordBatch <- function(..., call = caller_env()) {
+ inputs <- list(...)
+ num_rows <- inputs[[1]]$num_rows
+
+ batches <- map(seq_along(inputs), function(i) {
+ input <- inputs[[i]]
+ name <- names(inputs)[i]
+ name <- ifelse(name == "", paste0("X", as.character(i)), name)
Review Comment:
I ended up going with `base::make.names()`, which was simple enough to use.
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