rxin 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_r272763456
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/noop/NoopSuite.scala
##########
@@ -54,7 +56,7 @@ class NoopSuite extends SharedSQLContext {
accum.add(1)
x
}
- .write.format("noop").save()
+ .write.format("noop").mode("append").save()
Review comment:
We can't change the default like this. It'd be a huge nightmare for users to
upgrade, because it's a subtle semantic change. If we want to piss off all
Spark users that write data pipelines, changing the default from one to another
here is a great way to achieve that.
We can however introduce new APIs to make it more obvious what's happening.
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