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CREATE TABLE people ( first_name TEXT, last_name TEXT ); CREATE OR REPLACE FUNCTION name(people) RETURNS text AS $$ SELECT $1.first_name || ' ' || $1.last_name $$ LANGUAGE SQL STRICT IMMUTABLE ; alter table people add column full_name text GENERATED ALWAYS AS (name(people)) STORED; insert into people(first_name, last_name) values('John', 'Smith'); select full_name, full_name='John Smith' as pass from people;
1 rows affected
full_name
pass
John Smith
t
CREATE OR REPLACE FUNCTION name(people) RETURNS text AS $$ SELECT $1.first_name || ' ' || $1.last_name || ' function change' $$ LANGUAGE SQL STRICT IMMUTABLE ; -- refresh generated column here select full_name, full_name='John Smith function change' as pass from people;
full_name
pass
John Smith
f