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b4ec4f5e71
When retrieving counts of notifications segment the results based on the thread ID, but choose whether to return them as individual threads or as a single summed field by letting the client opt-in via a sync flag. The summarization code is also updated to be per thread, instead of per room.
102 lines
4.4 KiB
Python
102 lines
4.4 KiB
Python
# Copyright 2021 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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SCHEMA_VERSION = 73 # remember to update the list below when updating
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"""Represents the expectations made by the codebase about the database schema
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This should be incremented whenever the codebase changes its requirements on the
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shape of the database schema (even if those requirements are backwards-compatible with
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older versions of Synapse).
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See https://matrix-org.github.io/synapse/develop/development/database_schema.html
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for more information on how this works.
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Changes in SCHEMA_VERSION = 61:
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- The `user_stats_historical` and `room_stats_historical` tables are not written and
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are not read (previously, they were written but not read).
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- MSC2716: Add `insertion_events` and `insertion_event_edges` tables to keep track
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of insertion events in order to navigate historical chunks of messages.
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- MSC2716: Add `chunk_events` table to track how the chunk is labeled and
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determines which insertion event it points to.
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Changes in SCHEMA_VERSION = 62:
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- MSC2716: Add `insertion_event_extremities` table that keeps track of which
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insertion events need to be backfilled.
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Changes in SCHEMA_VERSION = 63:
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- The `public_room_list_stream` table is not written nor read to
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(previously, it was written and read to, but not for any significant purpose).
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https://github.com/matrix-org/synapse/pull/10565
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Changes in SCHEMA_VERSION = 64:
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- MSC2716: Rename related tables and columns from "chunks" to "batches".
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Changes in SCHEMA_VERSION = 65:
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- MSC2716: Remove unique event_id constraint from insertion_event_edges
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because an insertion event can have multiple edges.
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- Remove unused tables `user_stats_historical` and `room_stats_historical`.
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Changes in SCHEMA_VERSION = 66:
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- Queries on state_key columns are now disambiguated (ie, the codebase can handle
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the `events` table having a `state_key` column).
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Changes in SCHEMA_VERSION = 67:
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- state_events.prev_state is no longer written to.
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Changes in SCHEMA_VERSION = 68:
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- event_reference_hashes is no longer read.
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- `events` has `state_key` and `rejection_reason` columns, which are populated for
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new events.
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Changes in SCHEMA_VERSION = 69:
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- We now write to `device_lists_changes_in_room` table.
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- We now use a PostgreSQL sequence to generate future txn_ids for
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`application_services_txns`. `application_services_state.last_txn` is no longer
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updated.
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Changes in SCHEMA_VERSION = 70:
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- event_reference_hashes is no longer written to.
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Changes in SCHEMA_VERSION = 71:
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- event_edges.room_id is no longer read from.
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- Tables related to groups are no longer accessed.
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Changes in SCHEMA_VERSION = 72:
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- event_edges.(room_id, is_state) are no longer written to.
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- Tables related to groups are dropped.
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- Unused column application_services_state.last_txn is dropped
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- Cache invalidation stream id sequence now begins at 2 to match code expectation.
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Changes in SCHEMA_VERSION = 73;
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- thread_id column is added to event_push_actions, event_push_actions_staging
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event_push_summary, receipts_linearized, and receipts_graph.
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- Add table `event_failed_pull_attempts` to keep track when we fail to pull
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events over federation.
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- Add indexes to various tables (`event_failed_pull_attempts`, `insertion_events`,
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`batch_events`) to make it easy to delete all associated rows when purging a room.
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- `inserted_ts` column is added to `event_push_actions_staging` table.
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"""
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SCHEMA_COMPAT_VERSION = (
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# The threads_id column must exist for event_push_actions, event_push_summary,
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# receipts_linearized, and receipts_graph.
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73
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)
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"""Limit on how far the synapse codebase can be rolled back without breaking db compat
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This value is stored in the database, and checked on startup. If the value in the
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database is greater than SCHEMA_VERSION, then Synapse will refuse to start.
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"""
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