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-rw-r--r--changelog.d/10442.misc1
-rw-r--r--synapse/storage/database.py51
-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
6 files changed, 44 insertions, 99 deletions
diff --git a/changelog.d/10442.misc b/changelog.d/10442.misc
new file mode 100644
index 0000000000..b8d412d732
--- /dev/null
+++ b/changelog.d/10442.misc
@@ -0,0 +1 @@
+Replace usage of `or_ignore` in `simple_insert` with `simple_upsert` usage, to stop spamming postgres logs with spurious ERROR messages.
diff --git a/synapse/storage/database.py b/synapse/storage/database.py
index ccf9ac51ef..4d4643619f 100644
--- a/synapse/storage/database.py
+++ b/synapse/storage/database.py
@@ -832,31 +832,16 @@ class DatabasePool:
         self,
         table: str,
         values: Dict[str, Any],
-        or_ignore: bool = False,
         desc: str = "simple_insert",
-    ) -> bool:
+    ) -> None:
         """Executes an INSERT query on the named table.
 
         Args:
             table: string giving the table name
             values: dict of new column names and values for them
-            or_ignore: bool stating whether an exception should be raised
-                when a conflicting row already exists. If True, False will be
-                returned by the function instead
             desc: description of the transaction, for logging and metrics
-
-        Returns:
-             Whether the row was inserted or not. Only useful when `or_ignore` is True
         """
-        try:
-            await self.runInteraction(desc, self.simple_insert_txn, table, values)
-        except self.engine.module.IntegrityError:
-            # We have to do or_ignore flag at this layer, since we can't reuse
-            # a cursor after we receive an error from the db.
-            if not or_ignore:
-                raise
-            return False
-        return True
+        await self.runInteraction(desc, self.simple_insert_txn, table, values)
 
     @staticmethod
     def simple_insert_txn(
@@ -930,7 +915,7 @@ class DatabasePool:
         insertion_values: Optional[Dict[str, Any]] = None,
         desc: str = "simple_upsert",
         lock: bool = True,
-    ) -> Optional[bool]:
+    ) -> bool:
         """
 
         `lock` should generally be set to True (the default), but can be set
@@ -951,8 +936,8 @@ class DatabasePool:
             desc: description of the transaction, for logging and metrics
             lock: True to lock the table when doing the upsert.
         Returns:
-            Native upserts always return None. Emulated upserts return True if a
-            new entry was created, False if an existing one was updated.
+            Returns True if a row was inserted or updated (i.e. if `values` is
+            not empty then this always returns True)
         """
         insertion_values = insertion_values or {}
 
@@ -995,7 +980,7 @@ class DatabasePool:
         values: Dict[str, Any],
         insertion_values: Optional[Dict[str, Any]] = None,
         lock: bool = True,
-    ) -> Optional[bool]:
+    ) -> bool:
         """
         Pick the UPSERT method which works best on the platform. Either the
         native one (Pg9.5+, recent SQLites), or fall back to an emulated method.
@@ -1008,16 +993,15 @@ class DatabasePool:
             insertion_values: additional key/values to use only when inserting
             lock: True to lock the table when doing the upsert.
         Returns:
-            Native upserts always return None. Emulated upserts return True if a
-            new entry was created, False if an existing one was updated.
+            Returns True if a row was inserted or updated (i.e. if `values` is
+            not empty then this always returns True)
         """
         insertion_values = insertion_values or {}
 
         if self.engine.can_native_upsert and table not in self._unsafe_to_upsert_tables:
-            self.simple_upsert_txn_native_upsert(
+            return self.simple_upsert_txn_native_upsert(
                 txn, table, keyvalues, values, insertion_values=insertion_values
             )
-            return None
         else:
             return self.simple_upsert_txn_emulated(
                 txn,
@@ -1045,8 +1029,8 @@ class DatabasePool:
             insertion_values: additional key/values to use only when inserting
             lock: True to lock the table when doing the upsert.
         Returns:
-            Returns True if a new entry was created, False if an existing
-            one was updated.
+            Returns True if a row was inserted or updated (i.e. if `values` is
+            not empty then this always returns True)
         """
         insertion_values = insertion_values or {}
 
@@ -1086,8 +1070,7 @@ class DatabasePool:
 
             txn.execute(sql, sqlargs)
             if txn.rowcount > 0:
-                # successfully updated at least one row.
-                return False
+                return True
 
         # We didn't find any existing rows, so insert a new one
         allvalues: Dict[str, Any] = {}
@@ -1111,15 +1094,19 @@ class DatabasePool:
         keyvalues: Dict[str, Any],
         values: Dict[str, Any],
         insertion_values: Optional[Dict[str, Any]] = None,
-    ) -> None:
+    ) -> bool:
         """
-        Use the native UPSERT functionality in recent PostgreSQL versions.
+        Use the native UPSERT functionality in PostgreSQL.
 
         Args:
             table: The table to upsert into
             keyvalues: The unique key tables and their new values
             values: The nonunique columns and their new values
             insertion_values: additional key/values to use only when inserting
+
+        Returns:
+            Returns True if a row was inserted or updated (i.e. if `values` is
+            not empty then this always returns True)
         """
         allvalues: Dict[str, Any] = {}
         allvalues.update(keyvalues)
@@ -1140,6 +1127,8 @@ class DatabasePool:
         )
         txn.execute(sql, list(allvalues.values()))
 
+        return bool(txn.rowcount)
+
     async def simple_upsert_many(
         self,
         table: str,
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(