On 12/25/19 7:26 AM, stan wrote:
I am writing a trigger/function to make certain a default item, and its key
exist when an insert is called. EG
The trigger gets called on insert to T1 If column c1 is NULL in the NEW
structure, I need to check table t2 to get the key associated with the
default for this column. However, if the default is not yet inserted into
t2, I an to go ahead and insert it.
I'm with Pavel in not understanding what you want to do. This prevents
any clear discussion on what to do below. To help:
1) Schema of t1 and t2.
2) Default for what column?
3) What is the key?
I found this page:
https://stackoverflow.com/questions/6560447/can-i-use-return-value-of-insert-returning-in-another-insert
which sugest this syntax:
with rows as (
INSERT INTO Table1 (name) VALUES ('a_title') RETURNING id
)
INSERT INTO Table2 (val)
SELECT id
FROM rows
I modified it slightly to look like this:
IF _bom_name_key is NULL
THEN
with rows as (
INSERT INTO project_bom (bom_name) VALUES ('Main') RETURNING
project_bom_key
)
NEW.project_bom_key = SELECT project_bom_key
FROM rows ;
But this gives me syntax error.
I realize this functionality is slightly different, but can I get the new
key into the NEW structure to return from the function call?
--
Adrian Klaver
adrian.kla...@aklaver.com
