Accessing External Data with PXF

PXF is installed with Hadoop and Object Storage connectors. These connectors enable you to read external data stored in text, Avro, JSON, RCFile, Parquet, SequenceFile, and ORC formats. You can use the JDBC connector to access an external SQL database.

The Greenplum Platform Extension Framework includes a C-language extension and a Java service. After you configure and initialize PXF, you start a single PXF JVM process on each Greenplum Database segment host. This long- running process concurrently serves multiple query requests.

Parent topic: Working with External Data