2 files changed, 17 insertions, 0 deletions
diff --git a/changelog.d/5416.misc b/changelog.d/5416.misc
new file mode 100644
index 0000000000..155e8c7cd3
--- /dev/null
+++ b/changelog.d/5416.misc
@@ -0,0 +1 @@
+Add unique index to the profile_replication_status table.
diff --git a/synapse/storage/schema/delta/54/profile_replication_status_index.sql b/synapse/storage/schema/delta/54/profile_replication_status_index.sql
new file mode 100644
index 0000000000..7c20cb5a44
--- /dev/null
+++ b/synapse/storage/schema/delta/54/profile_replication_status_index.sql
@@ -0,0 +1,16 @@
+/* Copyright 2019 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+CREATE UNIQUE INDEX profile_replication_status_idx ON profile_replication_status(host);