This is the documentation for CDH 4.7.1. Documentation for other versions is available at Cloudera Documentation.

Cloudera Manager 4 and CDH 4 have reached End of Maintenance (EOM) on August 9, 2015. Cloudera will not support or provide patches for any of the Cloudera Manager 4 or CDH 4 releases after that date.

Accessing Table Data with Pig

When using table information from the Hive metastore with Pig, add the -useHCatalog option when invoking pig:

$ pig -useHCatalog test.pig

In the script, use HCatLoader to have table schema retrieved automatically:

A = LOAD 'groups' USING org.apache.hcatalog.pig.HCatLoader();
DESCRIBE A;

Output:

A: {name: chararray,placeholder: chararray,id: int}
This page last updated August 5, 2015