Hi -
If you would like to "simply take an input String (Text) run some Java and
return a new (Text) by calling a function" then you may wish to consider using
the "map" and "reduce" keywords directly from Hive and using a scripting
language like Perl that contains your mapper and reducer code.
for example:
create external table some_input_table ( field_1 string ) row format (etc...);
create table your_next_table ( output_field_1 string, output_field_2 string,
output_field_3 string );
from (
from some_input_table i
map i.field_1 using 'some_custom_mapper_code.pl' ) mapper_output
insert overwrite table your_next_table
reduce mapper_output.* using 'some_custom_reducer_code.pl' as
output_field_1, output_field_2, output_field_3
;
--test it
select * from your_next_table ;
Hope that helps.
cheers,
Avram
On Tuesday, April 27, 2010, at 10:55AM, "Tim Robertson"
<[email protected]> wrote:
>
