constant boolean expression in filter optimized incorrectly
-----------------------------------------------------------
Key: PIG-1915
URL: https://issues.apache.org/jira/browse/PIG-1915
Project: Pig
Issue Type: Bug
Affects Versions: 0.8.0, 0.9.0
Reporter: Thejas M Nair
This use case in this example is unusual, but it could indicate a problem that
affects other use cases-
The filter expression in following example is getting replaced by a constant
boolean with value false (it should be true).
{code}
grunt> l = load 't.txt' as (a,b);
grunt> fil = filter l by 2 > 1;
grunt> explain fil;
...
...
#--------------------------------------------------
# Map Reduce Plan
#--------------------------------------------------
MapReduce node scope-112
Map Plan
l: Store(fakefile:org.apache.pig.builtin.PigStorage) - scope-111
|
|---l: New For Each(false,false)[bag] - scope-110
| |
| Project[bytearray][0] - scope-106
| |
| Project[bytearray][1] - scope-108
|
|---fil: Filter[bag] - scope-104
| |
| Constant(false) - scope-105
|
|---l:
Load(file:///Users/tejas/pigNewparser/trunk/t.txt:org.apache.pig.builtin.PigStorage)
- scope-103--------
{code}
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