Greenplum DIA is an open systems integrator that architecturally integrates all the tools and frameworks within Greenplum. This module is optional and can be integrated into DCA.
DIA has built-in support for external data sources. An external ETL is usually integrated into this.
For example, Informatica PWX connector for Greenplum works directly within DIA and can load large volumes of data into Greenplum using
gpfdist via the high-speed interconnect.