Send fields after first row arrived so that error packet can be send to client when exception thrown from coord.getNext(). Golang and Python can not identify error if fields packet arrived before error packet.
# 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