Gpfdist support both readable external table and writable external table. This blog will introduce how writable gpfdist external table works. Read More
As the fundamental of all ETL operation of Greenplum, it worth explaining a little more about the detail of gpfdist to understand why it is faster than other tools and how could we improve in future.
This blog will focus on the detail of communication of readable external table between gpfdist server and Greenplum, and introduce the traffic flow and protocol of gpfdist external table. Read More
Why ETL is important for Greenplum
As a data warehouse product of future, Greenplum is able to process huge set of data which is usually in petabyte level, but Greenplum can’t generate such number of data by itself. Data is often generated by millions of users or embedded devices. Ideally, all data sources populate data to Greenplum directly but it is impossible in reality because data is the core asset of a company and Greenplum is only one of many tools that can be used to create value with data asset. One common solution is to use an intermediate system to store all the data. Read More