[PIG-1176] Column Pruner issues in union of loader with and without schema

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.6.0
• Fix Version/s: 0.7.0
• Component/s: impl
• Hadoop Flags: Reviewed
• Assignee: Daniel Dai
• Reporter: Daniel Dai
• Created: 05/Jan/10 02:36
• Updated: 14/May/10 06:46
• Resolved: 07/Jan/10 18:19

Description

Column pruner for union could fail if one source of union have the schema and the other does not have schema. For example, the following script fail:

a = load '1.txt' as (a0, a1, a2);
b = foreach a generate a0;
c = load '2.txt';
d = foreach c generate $0;
e = union b, d;
dump e;

However, this issue is in trunk only and is not applicable to 0.6 branch.