deserialize[T : Encoder](child: LogicalPlan): DeserializeToObject
CatalystSerde Helper Object
CatalystSerde
is a Scala object that consists of three utility methods:
-
deserialize to create a new logical plan with the input logical plan wrapped inside DeserializeToObject logical operator.
CatalystSerde
and belongs to org.apache.spark.sql.catalyst.plans.logical
package.
Creating Logical Plan with DeserializeToObject Logical Operator for 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).