Example 5—TEXT Format on a Hadoop Distributed File Server

Note: The gphdfs external table protocol is deprecated and will be removed in the next major release of Greenplum Database.

Creates a readable external table, ext_expenses, using the gphdfs protocol. The column delimiter is a pipe ( | ).

1. =# CREATE EXTERNAL TABLE ext_expenses ( name text,
2. date date,  amount float4, category text, desc1 text )
3. LOCATION ('gphdfs://hdfshost-1:8081/data/filename.txt')
4. FORMAT 'TEXT' (DELIMITER '|');

gphdfs requires only one data path.

For examples of reading and writing custom formatted data on a Hadoop Distributed File System, see Reading and Writing Custom-Formatted HDFS Data with gphdfs (Deprecated).

Parent topic: Examples for Creating External Tables