Github user bogdanrdc closed the pull request at:
https://github.com/apache/spark/pull/16875
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GitHub user bogdanrdc opened a pull request:
https://github.com/apache/spark/pull/16875
[BACKPORT-2.1][SPARK-19512][SQL] codegen for compare structs fails #16852
## What changes were proposed in this pull request?
Set currentVars to null in GenerateOrdering.genComparisons be
