Github user srowen commented on the issue:
https://github.com/apache/spark/pull/18177
It seems reasonable but there are likely many more similar opportunities -
is this a significantly large one? Or are there other easy wins?
Interning strings isn't as problematic as it used to be. Ideally the JVM
string deduplication would take care of this even better and automatically
though it is still an experimental flag.
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