Hi,
While working on some complex queries with multiple level of subqueries, I'm
wonder if it is possible in Hive to refactor these subqueries into different
files and instruct the enclosing query to execute these files. This way these
subqueries can potentially be reused by other questions or
I am afraid that there is no automatic way of doing so. But that would be
the same answer whether the question is about hive or any relational
database.
(I would be glad to have counter examples.)
You might want to look at oozie in order to manage worflow. But the
creation of the worflow is
Quick and dirty way to do such thing would be to use some kind of
preprocessor. To avoid writing one, you could use e.g. the one from GCC,
with just a little help from sed:
gcc -E -x c query.hql -o- | sed '/#/d' preprocessed.hql
hive -f preprocessed.hql
Where query.hql can contain for
