Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/20490#discussion_r167137165
--- Diff:
sql/core/src/main/java/org/apache/spark/sql/sources/v2/writer/DataSourceWriter.java
---
@@ -62,6 +62,16 @@
*/
DataWriterFactory<Row> createWriterFactory();
+ /**
+ * Returns whether Spark should use the commit coordinator to ensure
that only one attempt for
--- End diff --
This is actually not a guarantee, is it?
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