Nathan Smith created PIG-4721:
---------------------------------
Summary: IsEmpty documentation error
Key: PIG-4721
URL: https://issues.apache.org/jira/browse/PIG-4721
Project: Pig
Issue Type: Bug
Components: documentation
Affects Versions: 0.15.0
Reporter: Nathan Smith
http://pig.apache.org/docs/r0.15.0/func.html#isempty
The documentation example uses a left outer join, but this produces a flat
tuple, which is invalid for IsEmpty. I believe the example in the docs should
be:
{code}
SSN = load 'ssn.txt' using PigStorage() as (ssn:long);
SSN_NAME = load 'students.txt' using PigStorage() as (ssn:long, name:chararray);
/* do a cogroup of SSN with SSN_Name */
X = COGROUP SSN by ssn, SSN_NAME by ssn;
/* only keep those ssn's for which there is no name */
Y = filter X by IsEmpty(SSN_NAME);
{code}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
