CREATE SCHEMA upgrade_ref2ref;
SET search_path TO upgrade_ref2ref, public;
CREATE TABLE ref_table_1(id int PRIMARY KEY, value int);
SELECT create_reference_table('ref_table_1');
 create_reference_table
---------------------------------------------------------------------

(1 row)

CREATE TABLE ref_table_2(id int PRIMARY KEY, value int REFERENCES ref_table_1(id) ON DELETE CASCADE ON UPDATE CASCADE);
SELECT create_reference_table('ref_table_2');
 create_reference_table
---------------------------------------------------------------------

(1 row)

CREATE TABLE ref_table_3(id int PRIMARY KEY, value int REFERENCES ref_table_2(id) ON DELETE CASCADE ON UPDATE CASCADE);
SELECT create_reference_table('ref_table_3');
 create_reference_table
---------------------------------------------------------------------

(1 row)

CREATE TABLE dist_table(id int PRIMARY KEY, value int REFERENCES ref_table_2(id) ON DELETE CASCADE ON UPDATE CASCADE);
SELECT create_distributed_table('dist_table', 'id');
 create_distributed_table
---------------------------------------------------------------------

(1 row)

INSERT INTO ref_table_1 SELECT c, c FROM generate_series(1, 5) as c;
INSERT INTO ref_table_2 SELECT * FROM ref_table_1;
INSERT INTO ref_table_3 SELECT * FROM ref_table_2;
INSERT INTO dist_table SELECT * FROM ref_table_3;