From: | Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> |
---|---|
To: | Kiran <bangalore(dot)kiran(at)gmail(dot)com>, Postgres General <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: Rows are repeating by the trigger function |
Date: | 2016-10-30 14:01:30 |
Message-ID: | fa4e2250-f4eb-cb75-5525-22a0cfc06979@aklaver.com |
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Lists: | pgsql-general |
On 10/30/2016 02:31 AM, Kiran wrote:
> Dear Folks,
>
> I have a table *cf_question *with 31 rows.
> I want to insert/update another table *cf_user_question_link* when
> cf_question table is inserted/updated with row(s).
> I have written trigger function for this as follows.
>
>
> CREATE FUNCTION user_question_link() RETURNS trigger AS
> $user_question_link$
> begin
> SET search_path TO monolith;
> INSERT INTO
> cf_user_question_link(cf_user_id,cf_question_id)
> VALUES(NEW.user_id,NEW.cf_question_id);
> RETURN NEW;
> end;
> $user_question_link$
> LANGUAGE plpgsql
> COST 100;
>
>
> /* Call the trigger function */
>
> CREATE TRIGGER insert_user_question_link AFTER INSERT OR UPDATE
> ON monolith.cf_question
> FOR EACH ROW EXECUTE PROCEDURE user_question_link();
In addition to what Alban said:
What do you want the trigger function to do ?
In other words what are the condition(s) that are supposed to create a
new row in cf_user_question_link?
>
>
> Problem: The *cf_user_question_link* gets inserted with 94 rows instead
> of 31 rows. The 31 rows are repeated 3 times
Well actually 1 row + (3 * 31 rows).
So what is the query you are sending to cf_question?
> I tried dropping the trigger function and recreating it
> but with the same 94 rows in the table.
>
> It would be great if any from the forum point to me where I am doing wrong.
>
> regards
> Kiran
--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com
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