The union(set operation) stmt also need to analyze 'OutFileClause'. Whether the fragment is colocate only needs to check the plan node belonging to this fragment.
# fe-common This module is used to store some common classes of other modules. # spark-dpp This module is Spark DPP program, used for Spark Load function. Depends: fe-common # fe-core This module is the main process module of FE. Depends: fe-common, spark-dpp