All
I know this may sound like heresy since it involves executing an OS command from a function , but here goes
After an insert in a table, I want to touch a file
I.e
After insert into table test values (100) I want in a dir to have file 100
I used plsh extension but I had to use two functions and a trigger, see code below
CREATE or REPLACE FUNCTION func2 (var1 text) RETURNS text AS '
#!/bin/bash
touch /home/postgres/$1;
' LANGUAGE plsh;
commit;
CREATE FUNCTION func1() RETURNS trigger AS '
BEGIN
perform func2(NEW.col1);
RETURN NEW;
END;
' LANGUAGE plpgsql;
CREATE TRIGGER trigf1 BEFORE INSERT on test
FOR EACH ROW EXECUTE PROCEDURE func1();
testdb=# insert into test3 values (777);
INSERT 0 1
testdb=# select * from test3;
col1
------
777
[postgres@edb1 ~]$ ls -ltr
-rw------- 1 postgres postgres 0 Sep 29 16:30 777
It works but can I be simpler ? Any other alternatives ? In Ingres for example I can use dbevent and an esqlc app which listens
Thank you
Armand
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