cloud-fan commented on a change in pull request #25945: [SPARK-29248][SQL] Pass
in number of partitions to WriteBuilder
URL: https://github.com/apache/spark/pull/25945#discussion_r329294622
##########
File path:
sql/catalyst/src/main/java/org/apache/spark/sql/connector/write/WriteBuilder.java
##########
@@ -55,6 +55,16 @@ default WriteBuilder withInputDataSchema(StructType schema)
{
return this;
}
+ /**
+ * Passes the number of partitions of the input data from Spark to data
source.
+ *
+ * @return a new builder with the `schema`. By default it returns `this`,
which means the given
+ * `numPartitions` is ignored. Please override this method to take
the `numPartitions`.
+ */
+ default WriteBuilder withNumPartitions(int numPartitions) {
Review comment:
@edrevo can you implement this approach here? I think adding a
`numPartitions` is really a small change, we can set the main focus of this PR
to improve this API.
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