Github user JoshRosen commented on the pull request:
https://github.com/apache/spark/pull/7176#issuecomment-117935616
Here's another neat use-case for this data generator: in my Tungsten SQL
external sort patch, I used these generators to produce random input rows for
testing my sort operator:
https://github.com/JoshRosen/spark/blob/92e9bd1f50f2aa93cb8df0ce588fd03f1bfee5d5/sql/core/src/test/scala/org/apache/spark/sql/execution/UnsafeExternalSortSuite.scala#L41
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