Github user MaxGekk commented on a diff in the pull request:
https://github.com/apache/spark/pull/22413#discussion_r217513373
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/DataFrameReader.scala ---
@@ -202,7 +202,7 @@ class DataFrameReader private[sql](sparkSession:
SparkSession) extends Logging {
DataSourceOptions.PATHS_KEY ->
objectMapper.writeValueAsString(paths.toArray)
}
Dataset.ofRows(sparkSession, DataSourceV2Relation.create(
- ds, extraOptions.toMap ++ sessionOptions + pathsOption,
+ ds, sessionOptions ++ extraOptions.toMap + pathsOption,
--- End diff --
@dongjoon-hyun The commit didn't change semantic actually. Before it was:
```
(extraOptions ++
DataSourceV2Utils.extractSessionConfigs(
ds = ds.asInstanceOf[DataSourceV2],
conf = sparkSession.sessionState.conf))
```
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