Comments on: User-Defined Aggregate Functions

By: Manfred

Manfred — Sun, 08 Oct 2006 10:45:57 +0000

Hello Eddie,

that works fine. But in my case I need to overwrite the COUNT, MIN, MAX aggregation functions.

Do you know, how this can be done ?

Thank you for your help. Manfred

Eddie Awad — Sat, 03 Jun 2006 04:39:22 +0000

Instead of changing the behavior of a built-in function, I would create my own user-defined aggregate function and use it in my queries like this:

select myCount(*) from myTable;

Manfred — Wed, 31 May 2006 14:36:08 +0000

That sounds very intersting - but how can you change the behaviour of a SUM or a COUNT. For example:

SELECT COUNT(*) from mytable

should use my COUNT function not the real one

Thanks Manfred