PIG-3833: Relation loaded by AvroStorage with schema is projected incorrectly
in foreach statement (jeongjinku via cheolsoo)


git-svn-id: https://svn.apache.org/repos/asf/pig/branches/branch-0.12@1582793 13f79535-47bb-0310-9956-ffa450edef68
PIG-3813: Rank column is assigned different uids everytime when schema is reset (cheolsoo)


git-svn-id: https://svn.apache.org/repos/asf/pig/branches/branch-0.12@1582796 13f79535-47bb-0310-9956-ffa450edef68