viirya commented on a change in pull request #28761:
URL: https://github.com/apache/spark/pull/28761#discussion_r466544634
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/orc/OrcScanBuilder.scala
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@@ -60,10 +61,8 @@ case class OrcScanBuilder(
// changed `hadoopConf` in executors.
OrcInputFormat.setSearchArgument(hadoopConf, f, schema.fieldNames)
}
- val dataTypeMap = schema.map(f => quoteIfNeeded(f.name) ->
f.dataType).toMap
- // TODO (SPARK-25557): ORC doesn't support nested predicate pushdown, so
they are removed.
- val newFilters = filters.filter(!_.containsNestedColumn)
- _pushedFilters = OrcFilters.convertibleFilters(schema, dataTypeMap,
newFilters).toArray
Review comment:
For Orc, there is a `spark.sql.orc.filterPushdown` which can control
push down behavior.
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