How to suppress the output message in vertica

Question

I am running a series of SQL statement in vertica which is saved in abc.sql file and transferring the output to a text file.

I wanted to suppress the warning message and stop it from going to text file

abc.sql 

UPDATE  public.aks SET name='Akshay';

SELECT 2;

SELECT 3;

SELECT 4;

output.txt

OUTPUT
100
(1 row)
?column?
2
(1 row)
?column?
3
(1 row)
?column?
4
(1 row)

Answer 1

You need to switch output on and off within the script.

Preparing the table:

CREATE TABLE public.aks AS
WITH 
-- need a series of integers ..
i AS (
  SELECT MICROSECOND(ts) AS i , 'slartibartfast' AS name FROM (
    SELECT TIMESTAMPADD(microsecond,  1,'2000-01-01'::TIMESTAMP) AS tm UNION ALL
    SELECT TIMESTAMPADD(microsecond,100,'2000-01-01'::TIMESTAMP) AS tm
  )x
  TIMESERIES ts AS '1 microsecond' OVER(ORDER BY tm)
)
SELECT * FROM i;

Once that is done - the script looks like this:

-- send all output to nirvana
\o /dev/null
UPDATE  public.aks SET name='Akshay';
-- send output back to screen
\o
SELECT 2;
SELECT 3;
SELECT 4;

And the output:

2
3
4

Is this what you're looking for?