I am trying to create a trigger to update the column reminder(datatype date) using the data of the column date_of_join(datatype date) of same table. Reminder should be 1st of January, next year.
My function is :
CREATE OR REPLACE FUNCTION update_reminder()
RETURNS TRIGGER AS
$$
BEGIN
NEW."reminder" := make_date(CAST (extract(year from timestamp NEW."date_of_join") AS INTEGER) ,2,3);
RETURN NEW;
END
$$ LANGUAGE
plpgsql;
My trigger is :
CREATE TRIGGER "Trigger1"
BEFORE INSERT ON faculty
for each row
EXECUTE PROCEDURE update_reminder();
It is giving me error : syntax error at or near "NEW"
How to do this?
date_trunc
can be used to round to the beginning of the year; then you can add 1 year to arrive at January first of the following year:
NEW.reminder := date_trunc('year', NEW.date_of_join) + INTERVAL '1 year';
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