Github user gatorsmile commented on the issue:
https://github.com/apache/spark/pull/21070
@maropu Could you help verify the perf improvement in this string filter
pushdown in the microbenchmark? You can also refer to another microbenchmark we
did in ORC.
https://github.com/apache/spark/blob/master/sql/hive/src/test/scala/org/apache/spark/sql/hive/orc/OrcReadBenchmark.scala
If possible, please make a new microbenchmark suite that is extensible to
all the data sources.
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