Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/19943#discussion_r156474306
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/orc/OrcFileFormat.scala
---
@@ -139,15 +146,25 @@ class OrcFileFormat
}
}
+ val resultSchema = StructType(requiredSchema.fields ++
partitionSchema.fields)
+ val enableVectorizedReader =
sparkSession.sessionState.conf.orcVectorizedReaderEnabled &&
+ supportBatch(sparkSession, resultSchema)
--- End diff --
Ur, it seems to make the implementation complicated in order to provide
slower version.
If you don't mind, I'll proceed that in a next follow-up PR.
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