Github user viirya commented on the issue:
https://github.com/apache/spark/pull/14388
@mallman I ran a simple test, but can't reproduce the issue. The following
benchmark codes do select an array column and add an `order by` clause on it.
Can you give me an example code to reproduce it? Thanks.
val N = 10000
withParquetTable((0 until N).map { i =>
((i to i + 1000).toList, (i to i + 100).map(_.toString).toList,
(i to i + 1000).map(_.toDouble / 2).toList,
((0 to 10).map(_.toString).toList, (0 to
10).map(_.toString).toList))
}, "t") {
val benchmark = new Benchmark("Vectorization Parquet for nested
types", N)
benchmark.addCase("Vectorization Parquet reader", 10) { iter =>
sql("SELECT _1 FROM t ORDER BY _1").collect()
}
benchmark.run()
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