diff --git a/synapse/storage/schema/delta/24/fts.py b/synapse/storage/schema/delta/24/fts.py
new file mode 100644
index 0000000000..0c752d8426
--- /dev/null
+++ b/synapse/storage/schema/delta/24/fts.py
@@ -0,0 +1,123 @@
+# Copyright 2015 OpenMarket 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.
+
+import logging
+
+from synapse.storage.prepare_database import get_statements
+from synapse.storage.engines import PostgresEngine, Sqlite3Engine
+
+import ujson
+
+logger = logging.getLogger(__name__)
+
+
+POSTGRES_SQL = """
+CREATE TABLE event_search (
+ event_id TEXT,
+ room_id TEXT,
+ key TEXT,
+ vector tsvector
+);
+
+INSERT INTO event_search SELECT
+ event_id, room_id, 'content.body',
+ to_tsvector('english', json::json->'content'->>'body')
+ FROM events NATURAL JOIN event_json WHERE type = 'm.room.message';
+
+INSERT INTO event_search SELECT
+ event_id, room_id, 'content.name',
+ to_tsvector('english', json::json->'content'->>'name')
+ FROM events NATURAL JOIN event_json WHERE type = 'm.room.name';
+
+INSERT INTO event_search SELECT
+ event_id, room_id, 'content.topic',
+ to_tsvector('english', json::json->'content'->>'topic')
+ FROM events NATURAL JOIN event_json WHERE type = 'm.room.topic';
+
+
+CREATE INDEX event_search_fts_idx ON event_search USING gin(vector);
+CREATE INDEX event_search_ev_idx ON event_search(event_id);
+CREATE INDEX event_search_ev_ridx ON event_search(room_id);
+"""
+
+
+SQLITE_TABLE = (
+ "CREATE VIRTUAL TABLE event_search USING fts3 ( event_id, room_id, key, value)"
+)
+
+
+def run_upgrade(cur, database_engine, *args, **kwargs):
+ if isinstance(database_engine, PostgresEngine):
+ run_postgres_upgrade(cur)
+ return
+
+ if isinstance(database_engine, Sqlite3Engine):
+ run_sqlite_upgrade(cur)
+ return
+
+
+def run_postgres_upgrade(cur):
+ for statement in get_statements(POSTGRES_SQL.splitlines()):
+ cur.execute(statement)
+
+
+def run_sqlite_upgrade(cur):
+ cur.execute(SQLITE_TABLE)
+
+ rowid = -1
+ while True:
+ cur.execute(
+ "SELECT rowid, json FROM event_json"
+ " WHERE rowid > ?"
+ " ORDER BY rowid ASC LIMIT 100",
+ (rowid,)
+ )
+
+ res = cur.fetchall()
+
+ if not res:
+ break
+
+ events = [
+ ujson.loads(js)
+ for _, js in res
+ ]
+
+ rowid = max(rid for rid, _ in res)
+
+ rows = []
+ for ev in events:
+ if ev["type"] == "m.room.message":
+ rows.append((
+ ev["event_id"], ev["room_id"], "content.body",
+ ev["content"]["body"]
+ ))
+ if ev["type"] == "m.room.name":
+ rows.append((
+ ev["event_id"], ev["room_id"], "content.name",
+ ev["content"]["name"]
+ ))
+ if ev["type"] == "m.room.topic":
+ rows.append((
+ ev["event_id"], ev["room_id"], "content.topic",
+ ev["content"]["topic"]
+ ))
+
+ if rows:
+ logger.info(rows)
+ cur.executemany(
+ "INSERT INTO event_search (event_id, room_id, key, value)"
+ " VALUES (?,?,?,?)",
+ rows
+ )
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