Revert "Add a Postgres `REPLICA IDENTITY` to tables that do not have an implicit one. This should allow use of Postgres logical replication. (#16456)" (#16651)
This reverts commit 69afe3f7a0.
This commit is contained in:
Erik Johnston
GitHub
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3e8531d3ba
commit
ef5329a9f9
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Add a Postgres `REPLICA IDENTITY` to tables that do not have an implicit one. This should allow use of Postgres logical replication.
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@ -1,88 +0,0 @@
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/* Copyright 2023 The Matrix.org Foundation C.I.C
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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-- Annotate some tables in Postgres with a REPLICA IDENTITY.
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-- Any table that doesn't have a primary key should be annotated explicitly with
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-- a REPLICA IDENTITY so that logical replication can be used.
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-- If this is not done, then UPDATE and DELETE statements on those tables
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-- will fail if logical replication is in use.
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-- Where possible, re-use unique indices already defined on tables as a replica
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-- identity.
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ALTER TABLE appservice_room_list REPLICA IDENTITY USING INDEX appservice_room_list_idx;
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ALTER TABLE batch_events REPLICA IDENTITY USING INDEX chunk_events_event_id;
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ALTER TABLE blocked_rooms REPLICA IDENTITY USING INDEX blocked_rooms_idx;
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ALTER TABLE cache_invalidation_stream_by_instance REPLICA IDENTITY USING INDEX cache_invalidation_stream_by_instance_id;
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ALTER TABLE device_lists_changes_in_room REPLICA IDENTITY USING INDEX device_lists_changes_in_stream_id;
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ALTER TABLE device_lists_outbound_last_success REPLICA IDENTITY USING INDEX device_lists_outbound_last_success_unique_idx;
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ALTER TABLE device_lists_remote_cache REPLICA IDENTITY USING INDEX device_lists_remote_cache_unique_id;
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ALTER TABLE device_lists_remote_extremeties REPLICA IDENTITY USING INDEX device_lists_remote_extremeties_unique_idx;
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ALTER TABLE device_lists_remote_resync REPLICA IDENTITY USING INDEX device_lists_remote_resync_idx;
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ALTER TABLE e2e_cross_signing_keys REPLICA IDENTITY USING INDEX e2e_cross_signing_keys_stream_idx;
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ALTER TABLE e2e_room_keys REPLICA IDENTITY USING INDEX e2e_room_keys_with_version_idx;
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ALTER TABLE e2e_room_keys_versions REPLICA IDENTITY USING INDEX e2e_room_keys_versions_idx;
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ALTER TABLE erased_users REPLICA IDENTITY USING INDEX erased_users_user;
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ALTER TABLE event_relations REPLICA IDENTITY USING INDEX event_relations_id;
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ALTER TABLE federation_inbound_events_staging REPLICA IDENTITY USING INDEX federation_inbound_events_staging_instance_event;
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ALTER TABLE federation_stream_position REPLICA IDENTITY USING INDEX federation_stream_position_instance;
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ALTER TABLE ignored_users REPLICA IDENTITY USING INDEX ignored_users_uniqueness;
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ALTER TABLE insertion_events REPLICA IDENTITY USING INDEX insertion_events_event_id;
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ALTER TABLE insertion_event_extremities REPLICA IDENTITY USING INDEX insertion_event_extremities_event_id;
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ALTER TABLE monthly_active_users REPLICA IDENTITY USING INDEX monthly_active_users_users;
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ALTER TABLE ratelimit_override REPLICA IDENTITY USING INDEX ratelimit_override_idx;
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ALTER TABLE room_stats_earliest_token REPLICA IDENTITY USING INDEX room_stats_earliest_token_idx;
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ALTER TABLE room_stats_state REPLICA IDENTITY USING INDEX room_stats_state_room;
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ALTER TABLE stream_positions REPLICA IDENTITY USING INDEX stream_positions_idx;
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ALTER TABLE user_directory REPLICA IDENTITY USING INDEX user_directory_user_idx;
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ALTER TABLE user_directory_search REPLICA IDENTITY USING INDEX user_directory_search_user_idx;
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ALTER TABLE user_ips REPLICA IDENTITY USING INDEX user_ips_user_token_ip_unique_index;
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ALTER TABLE user_signature_stream REPLICA IDENTITY USING INDEX user_signature_stream_idx;
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ALTER TABLE users_in_public_rooms REPLICA IDENTITY USING INDEX users_in_public_rooms_u_idx;
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ALTER TABLE users_who_share_private_rooms REPLICA IDENTITY USING INDEX users_who_share_private_rooms_u_idx;
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ALTER TABLE user_threepid_id_server REPLICA IDENTITY USING INDEX user_threepid_id_server_idx;
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ALTER TABLE worker_locks REPLICA IDENTITY USING INDEX worker_locks_key;
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-- Where there are no unique indices, use the entire rows as replica identities.
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ALTER TABLE current_state_delta_stream REPLICA IDENTITY FULL;
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ALTER TABLE deleted_pushers REPLICA IDENTITY FULL;
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ALTER TABLE device_auth_providers REPLICA IDENTITY FULL;
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ALTER TABLE device_federation_inbox REPLICA IDENTITY FULL;
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ALTER TABLE device_federation_outbox REPLICA IDENTITY FULL;
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ALTER TABLE device_inbox REPLICA IDENTITY FULL;
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ALTER TABLE device_lists_outbound_pokes REPLICA IDENTITY FULL;
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ALTER TABLE device_lists_stream REPLICA IDENTITY FULL;
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ALTER TABLE e2e_cross_signing_signatures REPLICA IDENTITY FULL;
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ALTER TABLE event_auth_chain_links REPLICA IDENTITY FULL;
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ALTER TABLE event_auth REPLICA IDENTITY FULL;
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ALTER TABLE event_push_actions_staging REPLICA IDENTITY FULL;
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ALTER TABLE insertion_event_edges REPLICA IDENTITY FULL;
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ALTER TABLE local_media_repository_url_cache REPLICA IDENTITY FULL;
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ALTER TABLE presence_stream REPLICA IDENTITY FULL;
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ALTER TABLE push_rules_stream REPLICA IDENTITY FULL;
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ALTER TABLE room_alias_servers REPLICA IDENTITY FULL;
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ALTER TABLE stream_ordering_to_exterm REPLICA IDENTITY FULL;
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ALTER TABLE timeline_gaps REPLICA IDENTITY FULL;
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ALTER TABLE user_daily_visits REPLICA IDENTITY FULL;
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ALTER TABLE users_pending_deactivation REPLICA IDENTITY FULL;
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-- special cases: unique indices on nullable columns can't be used
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ALTER TABLE event_push_summary REPLICA IDENTITY FULL;
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ALTER TABLE event_search REPLICA IDENTITY FULL;
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ALTER TABLE local_media_repository_thumbnails REPLICA IDENTITY FULL;
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ALTER TABLE remote_media_cache_thumbnails REPLICA IDENTITY FULL;
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ALTER TABLE threepid_guest_access_tokens REPLICA IDENTITY FULL;
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ALTER TABLE user_filters REPLICA IDENTITY FULL; -- sadly the `CHECK` constraint is not enough here
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@ -1,30 +0,0 @@
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/* Copyright 2023 The Matrix.org Foundation C.I.C
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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-- Annotate some tables in Postgres with a REPLICA IDENTITY.
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-- Any table that doesn't have a primary key should be annotated explicitly with
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-- a REPLICA IDENTITY so that logical replication can be used.
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-- If this is not done, then UPDATE and DELETE statements on those tables
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-- will fail if logical replication is in use.
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-- See also: 82/04_replica_identities.sql.postgres on the main database
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-- Where possible, re-use unique indices already defined on tables as a replica
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-- identity.
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ALTER TABLE state_group_edges REPLICA IDENTITY USING INDEX state_group_edges_unique_idx;
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-- Where there are no unique indices, use the entire rows as replica identities.
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ALTER TABLE state_groups_state REPLICA IDENTITY FULL;
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@ -12,7 +12,7 @@
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from typing import Callable, List, Tuple
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from typing import Callable, Tuple
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from unittest.mock import Mock, call
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from twisted.internet import defer
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@ -29,7 +29,6 @@ from synapse.storage.database import (
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from synapse.util import Clock
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from tests import unittest
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from tests.utils import USE_POSTGRES_FOR_TESTS
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class TupleComparisonClauseTestCase(unittest.TestCase):
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@ -280,85 +279,3 @@ class CancellationTestCase(unittest.HomeserverTestCase):
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]
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)
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self.assertEqual(exception_callback.call_count, 6) # no additional calls
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class PostgresReplicaIdentityTestCase(unittest.HomeserverTestCase):
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if not USE_POSTGRES_FOR_TESTS:
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skip = "Requires Postgres"
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def prepare(
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self, reactor: MemoryReactor, clock: Clock, homeserver: HomeServer
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) -> None:
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self.db_pools = homeserver.get_datastores().databases
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def test_all_tables_have_postgres_replica_identity(self) -> None:
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"""
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Tests that all tables have a Postgres REPLICA IDENTITY.
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(See https://github.com/matrix-org/synapse/issues/16224).
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Tables with a PRIMARY KEY have an implied REPLICA IDENTITY and are fine.
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Other tables need them to be set with `ALTER TABLE`.
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A REPLICA IDENTITY is required for Postgres logical replication to work
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properly without blocking updates and deletes.
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"""
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sql = """
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-- Select tables that have no primary key and use the default replica identity rule
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-- (the default is to use the primary key)
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WITH tables_no_pkey AS (
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SELECT tbl.table_schema, tbl.table_name
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FROM information_schema.tables tbl
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WHERE table_type = 'BASE TABLE'
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AND table_schema not in ('pg_catalog', 'information_schema')
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AND NOT EXISTS (
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SELECT 1
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FROM information_schema.table_constraints tc
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WHERE tc.constraint_type = 'PRIMARY KEY'
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AND tc.table_schema = tbl.table_schema
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AND tc.table_name = tbl.table_name
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)
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)
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SELECT pg_class.oid::regclass FROM tables_no_pkey INNER JOIN pg_class ON pg_class.oid::regclass = table_name::regclass
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WHERE relreplident = 'd'
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UNION
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-- Also select tables that use an index as a replica identity
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-- but where the index doesn't exist
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-- (e.g. it could have been deleted)
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SELECT pg_class.oid::regclass
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FROM information_schema.tables tbl
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INNER JOIN pg_class ON pg_class.oid::regclass = table_name::regclass
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WHERE table_type = 'BASE TABLE'
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AND table_schema not in ('pg_catalog', 'information_schema')
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-- 'i' means an index is used as the replica identity
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AND relreplident = 'i'
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-- look for indices that are marked as the replica identity
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AND NOT EXISTS (
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SELECT indexrelid::regclass
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FROM pg_index
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WHERE indrelid = pg_class.oid::regclass AND indisreplident
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)
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"""
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def _list_tables_with_missing_replica_identities_txn(
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txn: LoggingTransaction,
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) -> List[str]:
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txn.execute(sql)
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return [table_name for table_name, in txn]
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for pool in self.db_pools:
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missing = self.get_success(
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pool.runInteraction(
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"test_list_missing_replica_identities",
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_list_tables_with_missing_replica_identities_txn,
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)
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)
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self.assertEqual(
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len(missing),
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0,
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f"The following tables in the {pool.name()!r} database are missing REPLICA IDENTITIES: {missing!r}.",
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)
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