Bucket shuffle join is an algorithm of joining two tables. Left table is distributed by a column. Right table sends the data to the left table for joining operation. It reduces the network cost. But when two table is without any data. Bucket shuffle join will fail. Related Issue: #5144
# 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