number of not null arguments

[Murat Kabilov <kabilovmf@xxxxxxxxx>]

Hello, 

Is there a function which returns number of not null arguments?

SELECT notnull_count(1, 1, NULL, NULL)

 notnull_count 

---------------

             2

SELECT notnull_count(ARRAY[1,2,3], ARRAY[10,20,30], NULL, ARRAY[NULL])

 notnull_count 

---------------

             3

Thanks

--

Murat Kabilov