We released the range projection feature in pig 0.9 because we knew you
were going to ask this question ;)
See -
http://www.hortonworks.com/new-apache-pig-0-9-features-part-3-additional-features/
and http://pig.apache.org/docs/r0.9.0/basic.html#expressions
That would be -
foo = foreach views generate REGEX_EXTRACT($0, '.*\\b(\\d+)$', 1), $1 .. ;
Thanks,
Thejas
On 8/9/11 10:25 PM, Mark wrote:
I have some tuples and I would like to be able to transform the first
row using the REGEX_EXTRACT method but leave all the other rows
untouched. Now I can easily do this with known and/or named fields but I
do not know the exact number of values in each tuple so something like
the following will not work:
foo = foreach views generate REGEX_EXTRACT($0, '.*\\b(\\d+)$', 1), $1,
$2, $3
I've tried the following but this duplicates the first value un-extracted:
foo = foreach views generate REGEX_EXTRACT($0, '.*\\b(\\d+)$', 1), *
Is there anyway I can accomplish modifying just the first value in each
tuple with an unknown number of values in each tuple?
Thanks
