How can I select multiple columns for a condition with a single where statement?

Question

I am doing some outlier detection for calculations at different time horizons.

How can I clean up the following in Vertica SQL?

Select * FROM my_table
WHERE (    
         (expected_value * 100) > measure_10_sec 
      OR (expected_value * 100) > measure_20_sec
      OR (expected_value * 100) > measure_30_sec
      OR (expected_value * 100) > measure_40_sec
      OR (expected_value * 100) > measure_50_sec
      OR (expected_value * 100) > measure_60_sec
)

To a more nifty query like this:

Select * FROM my_table
WHERE (expected_value* 100) > (measure_10_sec, measure_20_sec, measure_30_sec, measure_40_sec, measure_50_sec, measure_60_sec)

Answer 1

Just use LEAST() :

select * 
from my_table
where (expected_value * 100) > least(measure_10_sec, measure_20_sec, measure_30_sec, measure_40_sec, measure_50_sec, measure_60_sec)

If expected_value * 100 is greater than one of the values, then it is greater than the smallest of the values.

Note: This assumes that all the measures are non- NULL .

If AND were used instead of OR , then you would use GREATEST() .

Answer 2

You can use ANY to check if the left operator satisfies an operation with any right operator from a subquery.

...
WHERE expected_value * 100 > ANY(SELECT measure_10_sec
                                 UNION ALL
                                 SELECT measure_20_sec
                                 ...
                                 UNION ALL
                                 SELECT measure_50_sec
                                 UNION ALL
                                 SELECT measure_60_sec)
...

Note: I'm not sure if your DBMS supports the SELECT without FROM syntax. The documentation suggests it, but you probably need to find another subquery to get the values.