Question

Is there any way to drop ALL triggers from ALL tables in Postgres? I know there’s a pg_trigger table I could look at, but it doesn’t look like it contains enough information for me to decipher which triggers I have added to my tables.

It also looks like Foreign Key constraints show up in the pg_trigger table, which I DO NOT want to drop. I just want to drop the user created trigger from my tables and keep the FKs.

Any suggestions?

Answer 1

Thanks, James.

The function from Drop ALL triggers from Postgres DB? strips only the occurrence from the first table and leaves the triggers with the same name in other tables. Here is the fixed function:

CREATE OR REPLACE FUNCTION strip_all_triggers() RETURNS text AS $$ DECLARE
    triggNameRecord RECORD;
    triggTableRecord RECORD;
BEGIN
    FOR triggNameRecord IN select distinct(trigger_name) from information_schema.triggers where trigger_schema = 'public' LOOP
        FOR triggTableRecord IN SELECT distinct(event_object_table) from information_schema.triggers where trigger_name = triggNameRecord.trigger_name LOOP
            RAISE NOTICE 'Dropping trigger: % on table: %', triggNameRecord.trigger_name, triggTableRecord.event_object_table;
            EXECUTE 'DROP TRIGGER ' || triggNameRecord.trigger_name || ' ON ' || triggTableRecord.event_object_table || ';';
        END LOOP;
    END LOOP;

    RETURN 'done';
END;
$$ LANGUAGE plpgsql SECURITY DEFINER;

select strip_all_triggers();