Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/11759#discussion_r56455490
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/SparkPlan.scala ---
@@ -218,48 +218,64 @@ abstract class SparkPlan extends QueryPlan[SparkPlan]
with Logging with Serializ
}
/**
- * Runs this query returning the result as an array.
+ * Packing the UnsafeRows into byte array for faster serialization.
+ * The byte arrays are in the following format:
+ * [size] [bytes of UnsafeRow] [size] [bytes of UnsafeRow] ... [-1]
--- End diff --
nvm, you make it as an function.
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