stczwd commented on a change in pull request #26098: [SPARK-29444] Add
configuration to support JacksonGenrator to keep fields with null values
URL: https://github.com/apache/spark/pull/26098#discussion_r335316954
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/json/JSONOptions.scala
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@@ -76,6 +76,9 @@ private[sql] class JSONOptions(
// Whether to ignore column of all null values or empty array/struct during
schema inference
val dropFieldIfAllNull =
parameters.get("dropFieldIfAllNull").map(_.toBoolean).getOrElse(false)
+ // Whether to ignore column of all null during json generating
+ val structIngoreNull = parameters.getOrElse("structIngoreNull",
"true").toBoolean
Review comment:
It works on StructType, including struct field and struct inner data
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