[jira] [Created] (PIG-5033) MultiQueryOptimizerTez creates bad plan with union, split and FRJoin

["Travis Woodruff (JIRA)" <ji...@apache.org>]

Travis Woodruff created PIG-5033:
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             Summary: MultiQueryOptimizerTez creates bad plan with union, split and FRJoin
                 Key: PIG-5033
                 URL: https://issues.apache.org/jira/browse/PIG-5033
             Project: Pig
          Issue Type: Bug
          Components: tez
    Affects Versions: 0.16.0
            Reporter: Travis Woodruff


This script produces incorrect results:

{code}
a = load 'file:///tmp/input1' as (x:int, y:int);
b = load 'file:///tmp/input1' as (x:int, y:int);
u = union a,b;
c = load 'file:///tmp/input3' as (x:int, y:int);
e = filter c by y > 3;
f = filter c by y < 2;
g = join u by x left, e by x using 'replicated';
h = join g by u::x left, f by x using 'replicated';
store h into 'file:///tmp/pigoutput';
{code}

Without the union, or with opt.multiquery=false, or with non-replicated joins, it works as expected.





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