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-rw-r--r--synapse/storage/databases/main/devices.py9
-rw-r--r--synapse/storage/databases/main/monthly_active_users.py8
-rw-r--r--synapse/storage/databases/main/transactions.py8
-rw-r--r--synapse/storage/databases/main/user_directory.py66
4 files changed, 23 insertions, 68 deletions
diff --git a/synapse/storage/databases/main/devices.py b/synapse/storage/databases/main/devices.py
index 18f07d96dc..3816a0ca53 100644
--- a/synapse/storage/databases/main/devices.py
+++ b/synapse/storage/databases/main/devices.py
@@ -1078,16 +1078,18 @@ class DeviceStore(DeviceWorkerStore, DeviceBackgroundUpdateStore):
             return False
 
         try:
-            inserted = await self.db_pool.simple_insert(
+            inserted = await self.db_pool.simple_upsert(
                 "devices",
-                values={
+                keyvalues={
                     "user_id": user_id,
                     "device_id": device_id,
+                },
+                values={},
+                insertion_values={
                     "display_name": initial_device_display_name,
                     "hidden": False,
                 },
                 desc="store_device",
-                or_ignore=True,
             )
             if not inserted:
                 # if the device already exists, check if it's a real device, or
@@ -1099,6 +1101,7 @@ class DeviceStore(DeviceWorkerStore, DeviceBackgroundUpdateStore):
                 )
                 if hidden:
                     raise StoreError(400, "The device ID is in use", Codes.FORBIDDEN)
+
             self.device_id_exists_cache.set(key, True)
             return inserted
         except StoreError:
diff --git a/synapse/storage/databases/main/monthly_active_users.py b/synapse/storage/databases/main/monthly_active_users.py
index fe25638289..d213b26703 100644
--- a/synapse/storage/databases/main/monthly_active_users.py
+++ b/synapse/storage/databases/main/monthly_active_users.py
@@ -297,17 +297,13 @@ class MonthlyActiveUsersStore(MonthlyActiveUsersWorkerStore):
         Args:
             txn (cursor):
             user_id (str): user to add/update
-
-        Returns:
-            bool: True if a new entry was created, False if an
-            existing one was updated.
         """
 
         # Am consciously deciding to lock the table on the basis that is ought
         # never be a big table and alternative approaches (batching multiple
         # upserts into a single txn) introduced a lot of extra complexity.
         # See https://github.com/matrix-org/synapse/issues/3854 for more
-        is_insert = self.db_pool.simple_upsert_txn(
+        self.db_pool.simple_upsert_txn(
             txn,
             table="monthly_active_users",
             keyvalues={"user_id": user_id},
@@ -322,8 +318,6 @@ class MonthlyActiveUsersStore(MonthlyActiveUsersWorkerStore):
             txn, self.user_last_seen_monthly_active, (user_id,)
         )
 
-        return is_insert
-
     async def populate_monthly_active_users(self, user_id):
         """Checks on the state of monthly active user limits and optionally
         add the user to the monthly active tables
diff --git a/synapse/storage/databases/main/transactions.py b/synapse/storage/databases/main/transactions.py
index d211c423b2..7728d5f102 100644
--- a/synapse/storage/databases/main/transactions.py
+++ b/synapse/storage/databases/main/transactions.py
@@ -134,16 +134,18 @@ class TransactionWorkerStore(CacheInvalidationWorkerStore):
             response_dict: The response, to be encoded into JSON.
         """
 
-        await self.db_pool.simple_insert(
+        await self.db_pool.simple_upsert(
             table="received_transactions",
-            values={
+            keyvalues={
                 "transaction_id": transaction_id,
                 "origin": origin,
+            },
+            values={},
+            insertion_values={
                 "response_code": code,
                 "response_json": db_binary_type(encode_canonical_json(response_dict)),
                 "ts": self._clock.time_msec(),
             },
-            or_ignore=True,
             desc="set_received_txn_response",
         )
 
diff --git a/synapse/storage/databases/main/user_directory.py b/synapse/storage/databases/main/user_directory.py
index a6bfb4902a..9d28d69ac7 100644
--- a/synapse/storage/databases/main/user_directory.py
+++ b/synapse/storage/databases/main/user_directory.py
@@ -377,7 +377,7 @@ class UserDirectoryBackgroundUpdateStore(StateDeltasStore):
             avatar_url = None
 
         def _update_profile_in_user_dir_txn(txn):
-            new_entry = self.db_pool.simple_upsert_txn(
+            self.db_pool.simple_upsert_txn(
                 txn,
                 table="user_directory",
                 keyvalues={"user_id": user_id},
@@ -388,8 +388,7 @@ class UserDirectoryBackgroundUpdateStore(StateDeltasStore):
             if isinstance(self.database_engine, PostgresEngine):
                 # We weight the localpart most highly, then display name and finally
                 # server name
-                if self.database_engine.can_native_upsert:
-                    sql = """
+                sql = """
                         INSERT INTO user_directory_search(user_id, vector)
                         VALUES (?,
                             setweight(to_tsvector('simple', ?), 'A')
@@ -397,58 +396,15 @@ class UserDirectoryBackgroundUpdateStore(StateDeltasStore):
                             || setweight(to_tsvector('simple', COALESCE(?, '')), 'B')
                         ) ON CONFLICT (user_id) DO UPDATE SET vector=EXCLUDED.vector
                     """
-                    txn.execute(
-                        sql,
-                        (
-                            user_id,
-                            get_localpart_from_id(user_id),
-                            get_domain_from_id(user_id),
-                            display_name,
-                        ),
-                    )
-                else:
-                    # TODO: Remove this code after we've bumped the minimum version
-                    # of postgres to always support upserts, so we can get rid of
-                    # `new_entry` usage
-                    if new_entry is True:
-                        sql = """
-                            INSERT INTO user_directory_search(user_id, vector)
-                            VALUES (?,
-                                setweight(to_tsvector('simple', ?), 'A')
-                                || setweight(to_tsvector('simple', ?), 'D')
-                                || setweight(to_tsvector('simple', COALESCE(?, '')), 'B')
-                            )
-                        """
-                        txn.execute(
-                            sql,
-                            (
-                                user_id,
-                                get_localpart_from_id(user_id),
-                                get_domain_from_id(user_id),
-                                display_name,
-                            ),
-                        )
-                    elif new_entry is False:
-                        sql = """
-                            UPDATE user_directory_search
-                            SET vector = setweight(to_tsvector('simple', ?), 'A')
-                                || setweight(to_tsvector('simple', ?), 'D')
-                                || setweight(to_tsvector('simple', COALESCE(?, '')), 'B')
-                            WHERE user_id = ?
-                        """
-                        txn.execute(
-                            sql,
-                            (
-                                get_localpart_from_id(user_id),
-                                get_domain_from_id(user_id),
-                                display_name,
-                                user_id,
-                            ),
-                        )
-                    else:
-                        raise RuntimeError(
-                            "upsert returned None when 'can_native_upsert' is False"
-                        )
+                txn.execute(
+                    sql,
+                    (
+                        user_id,
+                        get_localpart_from_id(user_id),
+                        get_domain_from_id(user_id),
+                        display_name,
+                    ),
+                )
             elif isinstance(self.database_engine, Sqlite3Engine):
                 value = "%s %s" % (user_id, display_name) if display_name else user_id
                 self.db_pool.simple_upsert_txn(