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Update event push action and receipt tables to support threads. (#13753)

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Adds a `thread_id` column to the `event_push_actions`, `event_push_actions_staging`,
and `event_push_summary` tables. This will notifications to be segmented by the thread
in a future pull request. The `thread_id` column stores the root event ID or the special
value `"main"`.

The `thread_id` column for `event_push_actions` and `event_push_summary` is
backfilled with `"main"` for all existing rows. New entries into `event_push_actions`
and `event_push_actions_staging` will get the proper thread ID.

`receipts_linearized` and `receipts_graph` also gain a `thread_id` column, which is similar,
except `NULL` is a special value meaning the receipt is "unthreaded".

See MSC3771 and MSC3773 for where this data will be useful.
This commit is contained in:
Patrick Cloke 2022-09-14 13:11:16 -04:00 • committed by GitHub
parent f2d12ccabe
commit 666ae87729
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11 changed files with 312 additions and 20 deletions
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20
synapse/storage/databases/main/receipts.py
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@ -113,6 +113,24 @@ class ReceiptsWorkerStore(SQLBaseStore):
prefilled_cache=receipts_stream_prefill,
)
self.db_pool.updates.register_background_index_update(
"receipts_linearized_unique_index",
index_name="receipts_linearized_unique_index",
table="receipts_linearized",
columns=["room_id", "receipt_type", "user_id"],
where_clause="thread_id IS NULL",
unique=True,
)
self.db_pool.updates.register_background_index_update(
"receipts_graph_unique_index",
index_name="receipts_graph_unique_index",
table="receipts_graph",
columns=["room_id", "receipt_type", "user_id"],
where_clause="thread_id IS NULL",
unique=True,
)
def get_max_receipt_stream_id(self) -> int:
"""Get the current max stream ID for receipts stream"""
return self._receipts_id_gen.get_current_token()
@ -677,6 +695,7 @@ class ReceiptsWorkerStore(SQLBaseStore):
"event_id": event_id,
"event_stream_ordering": stream_ordering,
"data": json_encoder.encode(data),
"thread_id": None,
},
# receipts_linearized has a unique constraint on
# (user_id, room_id, receipt_type), so no need to lock
@ -824,6 +843,7 @@ class ReceiptsWorkerStore(SQLBaseStore):
values={
"event_ids": json_encoder.encode(event_ids),
"data": json_encoder.encode(data),
"thread_id": None,
},
# receipts_graph has a unique constraint on
# (user_id, room_id, receipt_type), so no need to lock