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-rw-r--r--synapse/storage/databases/main/__init__.py7
-rw-r--r--synapse/storage/databases/main/room.py4
2 files changed, 6 insertions, 5 deletions
diff --git a/synapse/storage/databases/main/__init__.py b/synapse/storage/databases/main/__init__.py
index 871fb646a5..701748f93b 100644
--- a/synapse/storage/databases/main/__init__.py
+++ b/synapse/storage/databases/main/__init__.py
@@ -339,12 +339,13 @@ class DataStore(
             filters = []
             args = [self.hs.config.server_name]
 
+            # `name` is in database already in lower case
             if name:
-                filters.append("(name LIKE ? OR displayname LIKE ?)")
-                args.extend(["@%" + name + "%:%", "%" + name + "%"])
+                filters.append("(name LIKE ? OR LOWER(displayname) LIKE ?)")
+                args.extend(["@%" + name.lower() + "%:%", "%" + name.lower() + "%"])
             elif user_id:
                 filters.append("name LIKE ?")
-                args.extend(["%" + user_id + "%"])
+                args.extend(["%" + user_id.lower() + "%"])
 
             if not guests:
                 filters.append("is_guest = 0")
diff --git a/synapse/storage/databases/main/room.py b/synapse/storage/databases/main/room.py
index 6b89db15c9..4650d0689b 100644
--- a/synapse/storage/databases/main/room.py
+++ b/synapse/storage/databases/main/room.py
@@ -379,14 +379,14 @@ class RoomWorkerStore(SQLBaseStore):
         # Filter room names by a string
         where_statement = ""
         if search_term:
-            where_statement = "WHERE state.name LIKE ?"
+            where_statement = "WHERE LOWER(state.name) LIKE ?"
 
             # Our postgres db driver converts ? -> %s in SQL strings as that's the
             # placeholder for postgres.
             # HOWEVER, if you put a % into your SQL then everything goes wibbly.
             # To get around this, we're going to surround search_term with %'s
             # before giving it to the database in python instead
-            search_term = "%" + search_term + "%"
+            search_term = "%" + search_term.lower() + "%"
 
         # Set ordering
         if RoomSortOrder(order_by) == RoomSortOrder.SIZE: