dongjoon-hyun commented on a change in pull request #24233: [SPARK-26356][SQL]
remove SaveMode from data source v2
URL: https://github.com/apache/spark/pull/24233#discussion_r287456877
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/test/DataFrameReaderWriterSuite.scala
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@@ -239,15 +243,75 @@ class DataFrameReaderWriterSuite extends QueryTest with
SharedSQLContext with Be
}
test("save mode") {
- val df = spark.read
+ spark.range(10).write
.format("org.apache.spark.sql.test")
- .load()
+ .mode(SaveMode.ErrorIfExists)
+ .save()
+ assert(LastOptions.saveMode === SaveMode.ErrorIfExists)
- df.write
+ spark.range(10).write
+ .format("org.apache.spark.sql.test")
+ .mode(SaveMode.Append)
+ .save()
+ assert(LastOptions.saveMode === SaveMode.Append)
+
+ // By default the save mode is `ErrorIfExists` for data source v1.
+ spark.range(10).write
.format("org.apache.spark.sql.test")
- .mode(SaveMode.ErrorIfExists)
.save()
assert(LastOptions.saveMode === SaveMode.ErrorIfExists)
+
+ spark.range(10).write
+ .format("org.apache.spark.sql.test")
+ .mode("default")
+ .save()
+ assert(LastOptions.saveMode === SaveMode.ErrorIfExists)
Review comment:
Thanks!
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