Cross after Limit produces wrong results
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Key: PIG-1708
URL: https://issues.apache.org/jira/browse/PIG-1708
Project: Pig
Issue Type: Bug
Affects Versions: 0.7.0
Reporter: Anil Chawla
It seems that the CROSS operation is producing empty or missing results when it
involves a LIMITed alias. For example, this script loads some data and appends
the record count to each row. The LIMIT in this case is unnecessary but is used
to demonstrate the issue:
a = load 'bug.txt' using PigStorage(',') as (word1, word2);
b = group a all;
c = foreach b generate COUNT(a) as count;
limit_c = LIMIT c 1;
d = cross a, limit_c;
dump d;
This produces empty results with my simple test data of 4 rows. However,
changing it to "d = cross a, c" produces the correct results. This does not
make sense because "c" and "limit_c" have the same value.
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