Materialize/test/debezium/postgres/06-add-column-with-update.td

# Copyright Materialize, Inc. and contributors. All rights reserved.
#
# Use of this software is governed by the Business Source License
# included in the LICENSE file at the root of this repository.
#
# As of the Change Date specified in that file, in accordance with
# the Business Source License, use of this software will be governed
# by the Apache License, Version 2.0.

#
# Test that adding a column does not mess things up.
# We expect that updates where the data is only different in this column will
# be handled correctly.
#

$ postgres-execute connection=postgres://postgres:postgres@postgres
CREATE TABLE alter_add_column (f1 INTEGER PRIMARY KEY);
ALTER TABLE alter_add_column REPLICA IDENTITY FULL;
INSERT INTO alter_add_column VALUES (123);

$ schema-registry-wait topic=postgres.public.alter_add_column

> CREATE CONNECTION IF NOT EXISTS csr_conn TO CONFLUENT SCHEMA REGISTRY (
    URL '${testdrive.schema-registry-url}'
  );

> CREATE CONNECTION IF NOT EXISTS kafka_conn TO KAFKA (BROKER '${testdrive.kafka-addr}', SECURITY PROTOCOL PLAINTEXT);

> CREATE SOURCE alter_add_column
  FROM KAFKA CONNECTION kafka_conn (TOPIC 'postgres.public.alter_add_column');

> CREATE TABLE alter_add_column_tbl FROM SOURCE alter_add_column (REFERENCE "postgres.public.alter_add_column")
  FORMAT AVRO USING CONFLUENT SCHEMA REGISTRY CONNECTION csr_conn
  ENVELOPE DEBEZIUM;

> SELECT * FROM alter_add_column_tbl;
123

$ postgres-execute connection=postgres://postgres:postgres@postgres
ALTER TABLE alter_add_column ADD COLUMN new_column INTEGER DEFAULT 1;
INSERT INTO alter_add_column VALUES (1234,2);

UPDATE alter_add_column SET f1 = f1 * 10 WHERE new_column = 1;
UPDATE alter_add_column SET f1 = f1 * 100 WHERE new_column = 2;

# Even though we do not have new_column in our source, we expect that the
# updates above have landed on the appropriate distinct rows

> SELECT * FROM alter_add_column_tbl;
1230
123400