Hi,
I got duplicate key violate error in the db log for the following query:
INSERT INTO tab1 ( SELECT '1611576', '1187865' WHERE NOT EXISTS (
SELECT 1 FROM tab1 WHERE id='1611576' AND id2='1187865' ) )
The error occured during production time.
But when I manually executed the query, it inserted one row with success and
next time it inserted 0 rows.
\d tab1
id int
id2 int
primary key (id,id2)
So, any idea why the error occurred at production time.