Re: Problem with coalesce.. - Mailing list pgsql-sql

----- Original Message -----

From: George Henry C. Daswani

To: pgsql-sql@postgresql.org

Cc: pgsql-general@postgresql.org

Sent: Tuesday, October 31, 2000 5:52 PM

Subject: [SQL] Problem with coalesce..

Hello,

 

    Was wondering if such a call is unsupported, or a bug?

 

7.0.2 (postgresql, linux redhat 7.0)

 

SELECT COALESCE ((SELECT NULL,1)

 

returns a 1, correct..

 

however..

 

SELECT COALESCE ((SELECT CURVALUE FROM TABLEKEYS WHERE TABLENAME = 'BUYER'),1)

 

returns a "UNKNOWN expression type 501"

 

SELECT CURVALUE FROM TABLEKEYS WHERE TABLENAME = 'BUYER'; returns a '0'

 

Thanks..

 

George