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https://github.com/ClickHouse/ClickHouse.git
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656 lines
24 KiB
Python
656 lines
24 KiB
Python
import pytest
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import time
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import psycopg2
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import os.path as p
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import random
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from helpers.cluster import ClickHouseCluster
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from helpers.test_tools import assert_eq_with_retry
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from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT
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from helpers.test_tools import TSV
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from random import randrange
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import threading
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from helpers.postgres_utility import get_postgres_conn
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from helpers.postgres_utility import PostgresManager
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from helpers.postgres_utility import create_replication_slot, drop_replication_slot
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from helpers.postgres_utility import create_postgres_schema, drop_postgres_schema
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from helpers.postgres_utility import create_postgres_table, drop_postgres_table
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from helpers.postgres_utility import (
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create_postgres_table_with_schema,
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drop_postgres_table_with_schema,
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)
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from helpers.postgres_utility import check_tables_are_synchronized
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from helpers.postgres_utility import check_several_tables_are_synchronized
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from helpers.postgres_utility import assert_nested_table_is_created
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from helpers.postgres_utility import assert_number_of_columns
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from helpers.postgres_utility import (
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postgres_table_template,
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postgres_table_template_2,
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postgres_table_template_3,
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postgres_table_template_4,
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postgres_table_template_5,
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)
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from helpers.postgres_utility import queries
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cluster = ClickHouseCluster(__file__)
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instance = cluster.add_instance(
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"instance",
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main_configs=["configs/log_conf.xml"],
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user_configs=["configs/users.xml"],
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with_postgres=True,
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stay_alive=True,
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)
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pg_manager = PostgresManager()
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@pytest.fixture(scope="module")
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def started_cluster():
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try:
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cluster.start()
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pg_manager.init(instance, cluster.postgres_ip, cluster.postgres_port)
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yield cluster
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finally:
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cluster.shutdown()
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@pytest.fixture(autouse=True)
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def setup_teardown():
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print("PostgreSQL is available - running test")
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yield # run test
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pg_manager.restart()
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def test_add_new_table_to_replication(started_cluster):
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cursor = pg_manager.get_db_cursor()
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cursor.execute("DROP TABLE IF EXISTS test_table")
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NUM_TABLES = 5
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pg_manager.create_and_fill_postgres_tables_from_cursor(cursor, NUM_TABLES, 10000)
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pg_manager.create_materialized_db(
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ip=started_cluster.postgres_ip, port=started_cluster.postgres_port
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)
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check_several_tables_are_synchronized(instance, NUM_TABLES)
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result = instance.query("SHOW TABLES FROM test_database")
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assert (
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result
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== "postgresql_replica_0\npostgresql_replica_1\npostgresql_replica_2\npostgresql_replica_3\npostgresql_replica_4\n"
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)
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table_name = "postgresql_replica_5"
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pg_manager.create_and_fill_postgres_table_from_cursor(cursor, table_name)
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result = instance.query("SHOW CREATE DATABASE test_database")
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assert (
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result[:63]
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== "CREATE DATABASE test_database\\nENGINE = MaterializedPostgreSQL("
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) # Check without ip
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assert result[-51:] == "\\'postgres_database\\', \\'postgres\\', \\'[HIDDEN]\\')\n"
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result = instance.query_and_get_error(
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"ALTER DATABASE test_database MODIFY SETTING materialized_postgresql_tables_list='tabl1'"
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)
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assert (
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"Changing setting `materialized_postgresql_tables_list` is not allowed"
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in result
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)
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result = instance.query_and_get_error(
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"ALTER DATABASE test_database MODIFY SETTING materialized_postgresql_tables='tabl1'"
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)
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assert "Database engine MaterializedPostgreSQL does not support setting" in result
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instance.query(f"ATTACH TABLE test_database.{table_name}")
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result = instance.query("SHOW TABLES FROM test_database")
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assert (
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result
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== "postgresql_replica_0\npostgresql_replica_1\npostgresql_replica_2\npostgresql_replica_3\npostgresql_replica_4\npostgresql_replica_5\n"
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)
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check_tables_are_synchronized(instance, table_name)
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instance.query(
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f"INSERT INTO postgres_database.{table_name} SELECT number, number from numbers(10000, 10000)"
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)
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check_tables_are_synchronized(instance, table_name)
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result = instance.query_and_get_error(f"ATTACH TABLE test_database.{table_name}")
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assert "Table test_database.postgresql_replica_5 already exists" in result
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result = instance.query_and_get_error("ATTACH TABLE test_database.unknown_table")
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assert "PostgreSQL table unknown_table does not exist" in result
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result = instance.query("SHOW CREATE DATABASE test_database")
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assert (
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result[:63]
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== "CREATE DATABASE test_database\\nENGINE = MaterializedPostgreSQL("
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)
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assert (
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result[-180:]
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== ")\\nSETTINGS materialized_postgresql_tables_list = \\'postgresql_replica_0,postgresql_replica_1,postgresql_replica_2,postgresql_replica_3,postgresql_replica_4,postgresql_replica_5\\'\n"
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)
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table_name = "postgresql_replica_6"
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create_postgres_table(cursor, table_name)
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instance.query(
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"INSERT INTO postgres_database.{} SELECT number, number from numbers(10000)".format(
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table_name
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)
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)
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instance.query(f"ATTACH TABLE test_database.{table_name}")
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instance.restart_clickhouse()
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table_name = "postgresql_replica_7"
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create_postgres_table(cursor, table_name)
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instance.query(
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"INSERT INTO postgres_database.{} SELECT number, number from numbers(10000)".format(
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table_name
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)
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)
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instance.query(f"ATTACH TABLE test_database.{table_name}")
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result = instance.query("SHOW CREATE DATABASE test_database")
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assert (
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result[:63]
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== "CREATE DATABASE test_database\\nENGINE = MaterializedPostgreSQL("
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)
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assert (
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result[-222:]
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== ")\\nSETTINGS materialized_postgresql_tables_list = \\'postgresql_replica_0,postgresql_replica_1,postgresql_replica_2,postgresql_replica_3,postgresql_replica_4,postgresql_replica_5,postgresql_replica_6,postgresql_replica_7\\'\n"
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)
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instance.query(
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f"INSERT INTO postgres_database.{table_name} SELECT number, number from numbers(10000, 10000)"
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)
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result = instance.query("SHOW TABLES FROM test_database")
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assert (
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result
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== "postgresql_replica_0\npostgresql_replica_1\npostgresql_replica_2\npostgresql_replica_3\npostgresql_replica_4\npostgresql_replica_5\npostgresql_replica_6\npostgresql_replica_7\n"
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)
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check_several_tables_are_synchronized(instance, NUM_TABLES + 3)
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def test_remove_table_from_replication(started_cluster):
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NUM_TABLES = 5
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pg_manager.create_and_fill_postgres_tables(NUM_TABLES, 10000)
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pg_manager.create_materialized_db(
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ip=started_cluster.postgres_ip, port=started_cluster.postgres_port
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)
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check_several_tables_are_synchronized(instance, NUM_TABLES)
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result = instance.query("SHOW TABLES FROM test_database")
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assert (
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result
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== "postgresql_replica_0\npostgresql_replica_1\npostgresql_replica_2\npostgresql_replica_3\npostgresql_replica_4\n"
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)
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result = instance.query("SHOW CREATE DATABASE test_database")
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assert (
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result[:63]
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== "CREATE DATABASE test_database\\nENGINE = MaterializedPostgreSQL("
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)
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assert result[-51:] == "\\'postgres_database\\', \\'postgres\\', \\'[HIDDEN]\\')\n"
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table_name = "postgresql_replica_4"
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instance.query(f"DETACH TABLE test_database.{table_name} PERMANENTLY")
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result = instance.query_and_get_error(f"SELECT * FROM test_database.{table_name}")
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assert "doesn't exist" in result
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result = instance.query("SHOW TABLES FROM test_database")
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assert (
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result
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== "postgresql_replica_0\npostgresql_replica_1\npostgresql_replica_2\npostgresql_replica_3\n"
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)
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result = instance.query("SHOW CREATE DATABASE test_database")
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assert (
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result[:63]
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== "CREATE DATABASE test_database\\nENGINE = MaterializedPostgreSQL("
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)
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assert (
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result[-138:]
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== ")\\nSETTINGS materialized_postgresql_tables_list = \\'postgresql_replica_0,postgresql_replica_1,postgresql_replica_2,postgresql_replica_3\\'\n"
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)
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instance.query(f"ATTACH TABLE test_database.{table_name}")
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check_tables_are_synchronized(instance, table_name)
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check_several_tables_are_synchronized(instance, NUM_TABLES)
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instance.query(
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f"INSERT INTO postgres_database.{table_name} SELECT number, number from numbers(10000, 10000)"
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)
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check_tables_are_synchronized(instance, table_name)
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result = instance.query("SHOW CREATE DATABASE test_database")
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assert (
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result[:63]
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== "CREATE DATABASE test_database\\nENGINE = MaterializedPostgreSQL("
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)
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assert (
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result[-159:]
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== ")\\nSETTINGS materialized_postgresql_tables_list = \\'postgresql_replica_0,postgresql_replica_1,postgresql_replica_2,postgresql_replica_3,postgresql_replica_4\\'\n"
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)
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table_name = "postgresql_replica_1"
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instance.query(f"DETACH TABLE test_database.{table_name} PERMANENTLY")
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result = instance.query("SHOW CREATE DATABASE test_database")
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assert (
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result[:63]
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== "CREATE DATABASE test_database\\nENGINE = MaterializedPostgreSQL("
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)
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assert (
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result[-138:]
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== ")\\nSETTINGS materialized_postgresql_tables_list = \\'postgresql_replica_0,postgresql_replica_2,postgresql_replica_3,postgresql_replica_4\\'\n"
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)
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cursor = pg_manager.get_db_cursor()
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cursor.execute(f"drop table if exists postgresql_replica_0;")
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# Removing from replication table which does not exist in PostgreSQL must be ok.
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instance.query("DETACH TABLE test_database.postgresql_replica_0 PERMANENTLY")
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assert instance.contains_in_log(
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"from publication, because table does not exist in PostgreSQL"
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)
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def test_predefined_connection_configuration(started_cluster):
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cursor = pg_manager.get_db_cursor()
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cursor.execute(f"DROP TABLE IF EXISTS test_table")
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cursor.execute(f"CREATE TABLE test_table (key integer PRIMARY KEY, value integer)")
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cursor.execute(f"INSERT INTO test_table SELECT 1, 2")
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instance.query(
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"CREATE DATABASE test_database ENGINE = MaterializedPostgreSQL(postgres1) SETTINGS materialized_postgresql_tables_list='test_table'"
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)
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check_tables_are_synchronized(instance, "test_table")
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pg_manager.drop_materialized_db()
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insert_counter = 0
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def test_database_with_single_non_default_schema(started_cluster):
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cursor = pg_manager.get_db_cursor()
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NUM_TABLES = 5
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schema_name = "test_schema"
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materialized_db = "test_database"
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clickhouse_postgres_db = "postgres_database_with_schema"
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global insert_counter
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insert_counter = 0
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def insert_into_tables():
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global insert_counter
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clickhouse_postgres_db = "postgres_database_with_schema"
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for i in range(NUM_TABLES):
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table_name = f"postgresql_replica_{i}"
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instance.query(
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f"INSERT INTO {clickhouse_postgres_db}.{table_name} SELECT number, number from numbers(1000 * {insert_counter}, 1000)"
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)
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insert_counter += 1
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def assert_show_tables(expected):
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result = instance.query("SHOW TABLES FROM test_database")
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assert result == expected
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print("assert show tables Ok")
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def check_all_tables_are_synchronized():
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for i in range(NUM_TABLES):
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print("checking table", i)
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check_tables_are_synchronized(
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instance,
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f"postgresql_replica_{i}",
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postgres_database=clickhouse_postgres_db,
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)
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print("synchronization Ok")
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create_postgres_schema(cursor, schema_name)
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pg_manager.create_clickhouse_postgres_db(
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ip=cluster.postgres_ip,
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port=cluster.postgres_port,
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name=clickhouse_postgres_db,
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schema_name=schema_name,
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)
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for i in range(NUM_TABLES):
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create_postgres_table_with_schema(
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cursor, schema_name, f"postgresql_replica_{i}"
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)
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insert_into_tables()
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pg_manager.create_materialized_db(
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ip=started_cluster.postgres_ip,
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port=started_cluster.postgres_port,
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settings=[
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f"materialized_postgresql_schema = '{schema_name}'",
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],
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)
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insert_into_tables()
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check_all_tables_are_synchronized()
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assert_show_tables(
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"postgresql_replica_0\npostgresql_replica_1\npostgresql_replica_2\npostgresql_replica_3\npostgresql_replica_4\n"
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)
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instance.restart_clickhouse()
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check_all_tables_are_synchronized()
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assert_show_tables(
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"postgresql_replica_0\npostgresql_replica_1\npostgresql_replica_2\npostgresql_replica_3\npostgresql_replica_4\n"
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)
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insert_into_tables()
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check_all_tables_are_synchronized()
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altered_table = random.randint(0, NUM_TABLES - 1)
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cursor.execute(
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"ALTER TABLE test_schema.postgresql_replica_{} ADD COLUMN value2 integer".format(
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altered_table
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)
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)
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instance.query(
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f"INSERT INTO {clickhouse_postgres_db}.postgresql_replica_{altered_table} SELECT number, number, number from numbers(5000, 1000)"
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)
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assert instance.wait_for_log_line(
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f"Table postgresql_replica_{altered_table} is skipped from replication stream"
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)
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instance.query(
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f"DETACH TABLE test_database.postgresql_replica_{altered_table} PERMANENTLY"
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)
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assert not instance.contains_in_log(
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"from publication, because table does not exist in PostgreSQL"
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)
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instance.query(f"ATTACH TABLE test_database.postgresql_replica_{altered_table}")
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check_tables_are_synchronized(
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instance,
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f"postgresql_replica_{altered_table}",
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postgres_database=clickhouse_postgres_db,
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)
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def test_database_with_multiple_non_default_schemas_1(started_cluster):
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cursor = pg_manager.get_db_cursor()
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NUM_TABLES = 5
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schema_name = "test_schema"
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clickhouse_postgres_db = "postgres_database_with_schema"
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materialized_db = "test_database"
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publication_tables = ""
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global insert_counter
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insert_counter = 0
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def insert_into_tables():
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global insert_counter
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clickhouse_postgres_db = "postgres_database_with_schema"
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for i in range(NUM_TABLES):
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table_name = f"postgresql_replica_{i}"
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instance.query(
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f"INSERT INTO {clickhouse_postgres_db}.{table_name} SELECT number, number from numbers(1000 * {insert_counter}, 1000)"
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)
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insert_counter += 1
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def assert_show_tables(expected):
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result = instance.query("SHOW TABLES FROM test_database")
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assert result == expected
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print("assert show tables Ok")
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def check_all_tables_are_synchronized():
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for i in range(NUM_TABLES):
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print("checking table", i)
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check_tables_are_synchronized(
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instance,
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"postgresql_replica_{}".format(i),
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schema_name=schema_name,
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postgres_database=clickhouse_postgres_db,
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)
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print("synchronization Ok")
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create_postgres_schema(cursor, schema_name)
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pg_manager.create_clickhouse_postgres_db(
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ip=cluster.postgres_ip,
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port=cluster.postgres_port,
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name=clickhouse_postgres_db,
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schema_name=schema_name,
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)
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for i in range(NUM_TABLES):
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table_name = "postgresql_replica_{}".format(i)
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create_postgres_table_with_schema(cursor, schema_name, table_name)
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if publication_tables != "":
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publication_tables += ", "
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publication_tables += schema_name + "." + table_name
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insert_into_tables()
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pg_manager.create_materialized_db(
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ip=started_cluster.postgres_ip,
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port=started_cluster.postgres_port,
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settings=[
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f"materialized_postgresql_tables_list = '{publication_tables}'",
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"materialized_postgresql_tables_list_with_schema=1",
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],
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)
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check_all_tables_are_synchronized()
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assert_show_tables(
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"test_schema.postgresql_replica_0\ntest_schema.postgresql_replica_1\ntest_schema.postgresql_replica_2\ntest_schema.postgresql_replica_3\ntest_schema.postgresql_replica_4\n"
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)
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instance.restart_clickhouse()
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check_all_tables_are_synchronized()
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assert_show_tables(
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"test_schema.postgresql_replica_0\ntest_schema.postgresql_replica_1\ntest_schema.postgresql_replica_2\ntest_schema.postgresql_replica_3\ntest_schema.postgresql_replica_4\n"
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)
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insert_into_tables()
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check_all_tables_are_synchronized()
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altered_table = random.randint(0, NUM_TABLES - 1)
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cursor.execute(
|
|
"ALTER TABLE test_schema.postgresql_replica_{} ADD COLUMN value2 integer".format(
|
|
altered_table
|
|
)
|
|
)
|
|
|
|
instance.query(
|
|
f"INSERT INTO {clickhouse_postgres_db}.postgresql_replica_{altered_table} SELECT number, number, number from numbers(5000, 1000)"
|
|
)
|
|
|
|
assert instance.wait_for_log_line(
|
|
f"Table test_schema.postgresql_replica_{altered_table} is skipped from replication stream"
|
|
)
|
|
altered_materialized_table = (
|
|
f"{materialized_db}.`test_schema.postgresql_replica_{altered_table}`"
|
|
)
|
|
instance.query(f"DETACH TABLE {altered_materialized_table} PERMANENTLY")
|
|
assert not instance.contains_in_log(
|
|
"from publication, because table does not exist in PostgreSQL"
|
|
)
|
|
instance.query(f"ATTACH TABLE {altered_materialized_table}")
|
|
|
|
assert_show_tables(
|
|
"test_schema.postgresql_replica_0\ntest_schema.postgresql_replica_1\ntest_schema.postgresql_replica_2\ntest_schema.postgresql_replica_3\ntest_schema.postgresql_replica_4\n"
|
|
)
|
|
check_tables_are_synchronized(
|
|
instance,
|
|
f"postgresql_replica_{altered_table}",
|
|
schema_name=schema_name,
|
|
postgres_database=clickhouse_postgres_db,
|
|
)
|
|
|
|
|
|
def test_database_with_multiple_non_default_schemas_2(started_cluster):
|
|
cursor = pg_manager.get_db_cursor()
|
|
NUM_TABLES = 2
|
|
schemas_num = 2
|
|
schema_list = "schema0, schema1"
|
|
materialized_db = "test_database"
|
|
global insert_counter
|
|
insert_counter = 0
|
|
|
|
def check_all_tables_are_synchronized():
|
|
for i in range(schemas_num):
|
|
schema_name = f"schema{i}"
|
|
clickhouse_postgres_db = f"clickhouse_postgres_db{i}"
|
|
for ti in range(NUM_TABLES):
|
|
table_name = f"postgresql_replica_{ti}"
|
|
print(f"checking table {schema_name}.{table_name}")
|
|
check_tables_are_synchronized(
|
|
instance,
|
|
f"{table_name}",
|
|
schema_name=schema_name,
|
|
postgres_database=clickhouse_postgres_db,
|
|
)
|
|
print("synchronized Ok")
|
|
|
|
def insert_into_tables():
|
|
global insert_counter
|
|
for i in range(schemas_num):
|
|
clickhouse_postgres_db = f"clickhouse_postgres_db{i}"
|
|
for ti in range(NUM_TABLES):
|
|
table_name = f"postgresql_replica_{ti}"
|
|
instance.query(
|
|
f"INSERT INTO {clickhouse_postgres_db}.{table_name} SELECT number, number from numbers(1000 * {insert_counter}, 1000)"
|
|
)
|
|
insert_counter += 1
|
|
|
|
def assert_show_tables(expected):
|
|
result = instance.query("SHOW TABLES FROM test_database")
|
|
assert result == expected
|
|
print("assert show tables Ok")
|
|
|
|
for i in range(schemas_num):
|
|
schema_name = f"schema{i}"
|
|
clickhouse_postgres_db = f"clickhouse_postgres_db{i}"
|
|
create_postgres_schema(cursor, schema_name)
|
|
pg_manager.create_clickhouse_postgres_db(
|
|
ip=cluster.postgres_ip,
|
|
port=cluster.postgres_port,
|
|
name=clickhouse_postgres_db,
|
|
schema_name=schema_name,
|
|
)
|
|
for ti in range(NUM_TABLES):
|
|
table_name = f"postgresql_replica_{ti}"
|
|
create_postgres_table_with_schema(cursor, schema_name, table_name)
|
|
|
|
insert_into_tables()
|
|
pg_manager.create_materialized_db(
|
|
ip=started_cluster.postgres_ip,
|
|
port=started_cluster.postgres_port,
|
|
settings=[
|
|
f"materialized_postgresql_schema_list = '{schema_list}'",
|
|
],
|
|
)
|
|
|
|
check_all_tables_are_synchronized()
|
|
insert_into_tables()
|
|
assert_show_tables(
|
|
"schema0.postgresql_replica_0\nschema0.postgresql_replica_1\nschema1.postgresql_replica_0\nschema1.postgresql_replica_1\n"
|
|
)
|
|
|
|
instance.restart_clickhouse()
|
|
assert_show_tables(
|
|
"schema0.postgresql_replica_0\nschema0.postgresql_replica_1\nschema1.postgresql_replica_0\nschema1.postgresql_replica_1\n"
|
|
)
|
|
check_all_tables_are_synchronized()
|
|
insert_into_tables()
|
|
check_all_tables_are_synchronized()
|
|
|
|
print("ALTER")
|
|
altered_schema = random.randint(0, schemas_num - 1)
|
|
altered_table = random.randint(0, NUM_TABLES - 1)
|
|
clickhouse_postgres_db = f"clickhouse_postgres_db{altered_schema}"
|
|
cursor.execute(
|
|
f"ALTER TABLE schema{altered_schema}.postgresql_replica_{altered_table} ADD COLUMN value2 integer"
|
|
)
|
|
|
|
instance.query(
|
|
f"INSERT INTO clickhouse_postgres_db{altered_schema}.postgresql_replica_{altered_table} SELECT number, number, number from numbers(1000 * {insert_counter}, 1000)"
|
|
)
|
|
|
|
assert instance.wait_for_log_line(
|
|
f"Table schema{altered_schema}.postgresql_replica_{altered_table} is skipped from replication stream"
|
|
)
|
|
|
|
altered_materialized_table = (
|
|
f"{materialized_db}.`schema{altered_schema}.postgresql_replica_{altered_table}`"
|
|
)
|
|
instance.query(f"DETACH TABLE {altered_materialized_table} PERMANENTLY")
|
|
assert not instance.contains_in_log(
|
|
"from publication, because table does not exist in PostgreSQL"
|
|
)
|
|
instance.query(f"ATTACH TABLE {altered_materialized_table}")
|
|
|
|
assert_show_tables(
|
|
"schema0.postgresql_replica_0\nschema0.postgresql_replica_1\nschema1.postgresql_replica_0\nschema1.postgresql_replica_1\n"
|
|
)
|
|
check_tables_are_synchronized(
|
|
instance,
|
|
f"postgresql_replica_{altered_table}",
|
|
schema_name=f"schema{altered_schema}",
|
|
postgres_database=clickhouse_postgres_db,
|
|
)
|
|
|
|
|
|
def test_table_override(started_cluster):
|
|
cursor = pg_manager.get_db_cursor()
|
|
table_name = "table_override"
|
|
materialized_database = "test_database"
|
|
create_postgres_table(cursor, table_name, template=postgres_table_template_5)
|
|
instance.query(
|
|
f"create table {table_name}(key Int32, value UUID) engine = PostgreSQL (postgres1, table={table_name})"
|
|
)
|
|
instance.query(
|
|
f"insert into {table_name} select number, generateUUIDv4() from numbers(10)"
|
|
)
|
|
table_overrides = f" TABLE OVERRIDE {table_name} (COLUMNS (key Int32, value UUID) PARTITION BY key)"
|
|
pg_manager.create_materialized_db(
|
|
ip=started_cluster.postgres_ip,
|
|
port=started_cluster.postgres_port,
|
|
settings=[f"materialized_postgresql_tables_list = '{table_name}'"],
|
|
table_overrides=table_overrides,
|
|
)
|
|
assert_nested_table_is_created(instance, table_name, materialized_database)
|
|
result = instance.query(f"show create table {materialized_database}.{table_name}")
|
|
print(result)
|
|
expected = "CREATE TABLE test_database.table_override\\n(\\n `key` Int32,\\n `value` UUID,\\n `_sign` Int8() MATERIALIZED 1,\\n `_version` UInt64() MATERIALIZED 1\\n)\\nENGINE = ReplacingMergeTree(_version)\\nPARTITION BY key\\nORDER BY tuple(key)"
|
|
assert result.strip() == expected
|
|
time.sleep(5)
|
|
query = f"select * from {materialized_database}.{table_name} order by key"
|
|
expected = instance.query(f"select * from {table_name} order by key")
|
|
instance.query(f"drop table {table_name} no delay")
|
|
assert_eq_with_retry(instance, query, expected)
|
|
|
|
|
|
def test_materialized_view(started_cluster):
|
|
cursor = pg_manager.get_db_cursor()
|
|
cursor.execute(f"DROP TABLE IF EXISTS test_table")
|
|
cursor.execute(f"CREATE TABLE test_table (key integer PRIMARY KEY, value integer)")
|
|
cursor.execute(f"INSERT INTO test_table SELECT 1, 2")
|
|
instance.query("DROP DATABASE IF EXISTS test_database")
|
|
instance.query(
|
|
"CREATE DATABASE test_database ENGINE = MaterializedPostgreSQL(postgres1) SETTINGS materialized_postgresql_tables_list='test_table'"
|
|
)
|
|
check_tables_are_synchronized(instance, "test_table")
|
|
instance.query("DROP TABLE IF EXISTS mv")
|
|
instance.query(
|
|
"CREATE MATERIALIZED VIEW mv ENGINE=MergeTree ORDER BY tuple() POPULATE AS SELECT * FROM test_database.test_table"
|
|
)
|
|
assert "1\t2" == instance.query("SELECT * FROM mv").strip()
|
|
cursor.execute(f"INSERT INTO test_table SELECT 3, 4")
|
|
check_tables_are_synchronized(instance, "test_table")
|
|
assert "1\t2\n3\t4" == instance.query("SELECT * FROM mv ORDER BY 1, 2").strip()
|
|
pg_manager.drop_materialized_db()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
cluster.start()
|
|
input("Cluster created, press any key to destroy...")
|
|
cluster.shutdown()
|