sadikovi commented on code in PR #37419:
URL: https://github.com/apache/spark/pull/37419#discussion_r944790118
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sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetQuerySuite.scala:
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@@ -1108,6 +1108,17 @@ abstract class ParquetQuerySuite extends QueryTest with
ParquetTest with SharedS
checkAnswer(sql("select * from tbl"), expected)
}
}
+
+ test("SPARK-39833: count() with pushed filters from Parquet files") {
Review Comment:
Yes, the provided test fails. it appears the problem is wide-spread due to
this parquet-mr bug. I would have to change the code to check filters that are
pushed down against the requested schema instead of a full one but then it
might introduce a performance issue.
I think the safest for now is to disable column indexes altogether. I will
take a look at what could be done.
We can also merge this PR and I can follow up on the fix later.
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