automatically ignore known forwarded addresses, fixes #64

vendor/go.mau.fi/util/dbutil/samples/output/01-postgres.sql

@@ -0,0 +1,11 @@
+CREATE TABLE foo (
+	key BIGINT PRIMARY KEY GENERATED BY DEFAULT AS IDENTITY,
+
+	data JSONB NOT NULL
+);
+
+CREATE FUNCTION delete_data() RETURNS TRIGGER LANGUAGE plpgsql AS $$ BEGIN
+	DELETE FROM test WHERE key <= NEW.data->>'index';
+	RETURN NEW;
+END $$;
+-- end only postgres