PreprocessTableMerge Logical Resolution Rule¶
PreprocessTableMerge is injected (installed) into a
SparkSession using DeltaSparkSessionExtension.
PreprocessTableMerge takes the following to be created:
PreprocessTableMerge is created when:
DeltaSparkSessionExtensionis requested to register Delta SQL support
DeltaMergeBuilderis requested to execute
apply( plan: LogicalPlan): LogicalPlan
apply is part of the
Rule (Spark SQL) abstraction.