[PIG-2030] Merged join/cogroup does not automatically ship loader

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.9.0
• Fix Version/s: 0.9.0
• Component/s: impl
• Hadoop Flags: Reviewed
• Assignee: Daniel Dai
• Reporter: Daniel Dai
• Created: 03/May/11 01:25
• Updated: 04/Aug/11 00:35
• Resolved: 10/May/11 20:47

Description

The following script fail due to TableLoader class not found (If the jar is in classpath):

a = load '/user/pig/tests/data/zebra/singlefile/studentsortedtab10k' using org.apache.hadoop.zebra.pig.TableLoader('', 'sorted');
b = load '/user/pig/tests/data/zebra/singlefile/votersortedtab10k' using org.apache.hadoop.zebra.pig.TableLoader('', 'sorted');
g = cogroup a by $0, b by $0 using 'merge';
store g into '/user/pig/out/jianyong.1304374720/ZebraMapCogrp_1.out';

If we use register, the error goes away. However, Pig always ship jars containing LoadFunc automatically. It should be the same for merged cogroup/join.