deserialize[T : Encoder](child: LogicalPlan): DeserializeToObjectCatalystSerde
CatalystSerde object consists of three methods:
-
deserialize to create a
DeserializeToObjectlogical operator for a logical plan.
CatalystSerde is a Scala object and belongs to org.apache.spark.sql.catalyst.plans.logical package.
Creating DeserializeToObject Logical Operator for Child Logical Plan — deserialize Method
deserialize creates a DeserializeToObject logical operator for the input child logical plan.
Internally, deserialize creates a UnresolvedDeserializer for the deserializer for the type T first and passes it on to a DeserializeToObject with a AttributeReference (being the result of generateObjAttr).