Oracle Analytic functions - How to reuse a PARTITION BY clause?

Question

I have written a complex SQL query with Oracle in which I want to use two analytic function over the same partition.

Let's be quite simple but not too much:

SELECT col1,
       MAX(col2) OVER(PARTITION BY col3, col4, col5, col6,
                                   CASE WHEN col7 LIKE 'foo'
                                        THEN SUBSTR(col7,1,5)
                                        ELSE col7
                                   END
                                   ORDER BY col5 ASC, col6 DESC),
       MIN(col2) OVER(PARTITION BY col3, col4, col5, col6,
                                   CASE WHEN col7 LIKE 'foo'
                                        THEN SUBSTR(col7,1,5)
                                        ELSE col7
                                   END
                                   ORDER BY col5 ASC, col6 DESC)
  FROM my_table;

Is there a more elegant syntax for factoring the PARTITION BY clause?

Thank you.

Answer 1

If you are referring to the standard WINDOW clause like this:

SELECT col1,
       MAX(col2) OVER(w),
       MIN(col2) OVER(w)
FROM my_table
WINDOW w AS (PARTITION BY col3, col4, col5, col6,
                               CASE WHEN col7 LIKE 'foo'
                                    THEN SUBSTR(col7,1,5)
                                    ELSE col7
                               END
                               ORDER BY col5 ASC, col6 DESC);

then I believe the answer is no, Oracle does not support this (checked with 11gR2).