Github user shivaram commented on a diff in the pull request:
https://github.com/apache/spark/pull/14173#discussion_r70705110
--- Diff: R/pkg/R/column.R ---
@@ -235,20 +248,16 @@ setMethod("cast",
function(x, dataType) {
if (is.character(dataType)) {
column(callJMethod(x@jc, "cast", dataType))
- } else if (is.list(dataType)) {
--- End diff --
Actually this was broken code in the sense that `tojson` is not a valid
function defined in base R or SparkR. I think this is a remnant from early code
written in amplab-extras/SparkR-pkg. I will remove the examples above -- thats
a good point
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