varargs functions do not get passed the arguments in Python embedding
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Key: PIG-2322
URL: https://issues.apache.org/jira/browse/PIG-2322
Project: Pig
Issue Type: Bug
Reporter: Julien Le Dem
Assignee: Julien Le Dem
from Stan:
Hi,
I have a simple python udf which takes a variable number of (string)
arguments and returns the first non-empty one.
I can see that the udf is invoked from pig but no arguments are being passed.
Here is the script:
=========================================================
#!/usr/bin/python
from org.apache.pig.scripting import *
@outputSchema("s:chararray")
def firstNonempty(*args):
print args
for v in args:
if len(v) != 0:
return v
return ''
if __name__ == "__main__":
Pig.compile("""
data = load 'input.txt' AS (string1:chararray, string2:chararray);
data = foreach data generate firstNonempty(string1, string2) as id,
string1, string2;
dump data;
""").bind().runSingle()
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Thanks!
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