diff --git a/superduper/base/event.py b/superduper/base/event.py
index a1c8bf756..3e484344f 100644
--- a/superduper/base/event.py
+++ b/superduper/base/event.py
@@ -252,6 +252,7 @@ def execute(self, db: 'Datalayer'):
 events = {
     'signal': Signal,
     'change': Change,
+    'update': Update,
     'create': Create,
     'job': Job,
 }
diff --git a/templates/simple_rag/build.ipynb b/templates/simple_rag/build.ipynb
index ff3386195..d78ce1b25 100644
--- a/templates/simple_rag/build.ipynb
+++ b/templates/simple_rag/build.ipynb
@@ -42,7 +42,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "id": "3ef70f6d-a189-460a-8864-241a689624e2",
    "metadata": {
     "editable": true,
@@ -65,7 +65,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 2,
    "id": "cb029a5e-fedf-4f07-8a31-d220cfbfbb3d",
    "metadata": {
     "editable": true,
@@ -74,7 +74,24 @@
     },
     "tags": []
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\u001b[32m2024-Dec-03 10:16:47.82\u001b[0m| \u001b[1mINFO    \u001b[0m | \u001b[36mDuncans-MBP.fritz.box\u001b[0m| \u001b[36msuperduper.misc.plugins\u001b[0m:\u001b[36m13  \u001b[0m | \u001b[1mLoading plugin: ibis\u001b[0m\n",
+      "\u001b[32m2024-Dec-03 10:16:48.16\u001b[0m| \u001b[33m\u001b[1mWARNING \u001b[0m | \u001b[36mDuncans-MBP.fritz.box\u001b[0m| \u001b[36msuperduper_ibis.data_backend\u001b[0m:\u001b[36m112 \u001b[0m | \u001b[33m\u001b[1mUnable to connect to the database with self.conn.con: <sqlite3.Connection object at 0x1230cfd40> and self.name: sqlite:. Error: 'sqlite3.Connection' object has no attribute 'dialect'.\u001b[0m\n",
+      "\u001b[32m2024-Dec-03 10:16:48.16\u001b[0m| \u001b[33m\u001b[1mWARNING \u001b[0m | \u001b[36mDuncans-MBP.fritz.box\u001b[0m| \u001b[36msuperduper_ibis.data_backend\u001b[0m:\u001b[36m116 \u001b[0m | \u001b[33m\u001b[1mFalling back to using the uri: sqlite://.\u001b[0m\n",
+      "\u001b[32m2024-Dec-03 10:16:48.17\u001b[0m| \u001b[1mINFO    \u001b[0m | \u001b[36mDuncans-MBP.fritz.box\u001b[0m| \u001b[36msuperduper.base.datalayer\u001b[0m:\u001b[36m68  \u001b[0m | \u001b[1mBuilding Data Layer\u001b[0m\n",
+      "\u001b[32m2024-Dec-03 10:16:48.17\u001b[0m| \u001b[1mINFO    \u001b[0m | \u001b[36mDuncans-MBP.fritz.box\u001b[0m| \u001b[36msuperduper.base.build\u001b[0m:\u001b[36m184 \u001b[0m | \u001b[1mConfiguration: \n",
+      " +---------------+-----------+\n",
+      "| Configuration |   Value   |\n",
+      "+---------------+-----------+\n",
+      "|  Data Backend | sqlite:// |\n",
+      "+---------------+-----------+\u001b[0m\n"
+     ]
+    }
+   ],
    "source": [
     "from superduper import superduper, CFG\n",
     "\n",
@@ -86,7 +103,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 3,
    "id": "4e7902bd",
    "metadata": {
     "editable": true,
@@ -113,7 +130,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 4,
    "id": "9b4dbc0f-5a0a-423c-ad47-f3e4b3cbc950",
    "metadata": {},
    "outputs": [],
@@ -123,17 +140,28 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 5,
    "id": "3cef697d-63b7-43d8-af45-b7751323b7f6",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "{'getter': 'default'}"
+      ]
+     },
+     "execution_count": 5,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "RemoteData._fields"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 6,
    "id": "1ef8dd07-1b47-4dce-84dd-a081d1f5ee9d",
    "metadata": {},
    "outputs": [],
@@ -155,7 +183,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 7,
    "id": "c5965fdf",
    "metadata": {},
    "outputs": [],
@@ -189,7 +217,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 8,
    "id": "2d20eaa0-a416-4483-938e-23f79845739a",
    "metadata": {},
    "outputs": [],
@@ -217,7 +245,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 9,
    "id": "93d21872-d4dc-40dc-abab-fb07ba102ea3",
    "metadata": {},
    "outputs": [],
@@ -236,7 +264,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 10,
    "id": "31900eec-b516-4bef-939e-2e8f46252b12",
    "metadata": {},
    "outputs": [],
@@ -284,7 +312,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 11,
    "id": "a9b1f538-65ca-499e-b6d0-2dd733f81723",
    "metadata": {},
    "outputs": [],
@@ -309,7 +337,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 12,
    "id": "4663fa4b-c2ec-427d-bf8b-b8b109cc2ccf",
    "metadata": {},
    "outputs": [],
@@ -332,7 +360,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 13,
    "id": "509c3505-54c5-4e68-84ec-3df8bea0fd74",
    "metadata": {},
    "outputs": [],
@@ -352,7 +380,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 14,
    "id": "f98e5ff4",
    "metadata": {},
    "outputs": [],
@@ -376,7 +404,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 15,
    "id": "44baeb09-6f35-4cf2-b814-46283a59f7e9",
    "metadata": {},
    "outputs": [],
@@ -403,7 +431,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 16,
    "id": "2d3a0d3a-da1c-41ec-b16c-f281c46ad794",
    "metadata": {},
    "outputs": [],
@@ -422,10 +450,19 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 17,
    "id": "e6787c78-4b14-4a72-818b-450408a74331",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\u001b[32m2024-Dec-03 10:16:48.96\u001b[0m| \u001b[1mINFO    \u001b[0m | \u001b[36mDuncans-MBP.fritz.box\u001b[0m| \u001b[36msuperduper.components.application\u001b[0m:\u001b[36m39  \u001b[0m | \u001b[1mResorting components based on topological order.\u001b[0m\n",
+      "\u001b[32m2024-Dec-03 10:16:48.96\u001b[0m| \u001b[1mINFO    \u001b[0m | \u001b[36mDuncans-MBP.fritz.box\u001b[0m| \u001b[36msuperduper.components.application\u001b[0m:\u001b[36m56  \u001b[0m | \u001b[1mNew order of components: ['listener:chunker:f4e285cb704a41c3', 'vector_index:vectorindex:dbd493f4bbe3408a', 'model:simple_rag:a9ff704a42644185']\u001b[0m\n"
+     ]
+    }
+   ],
    "source": [
     "from superduper import Application\n",
     "\n",
@@ -441,7 +478,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 18,
    "id": "e7c16557-af76-4e70-83d9-2984e19a9554",
    "metadata": {},
    "outputs": [],
@@ -452,7 +489,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 19,
    "id": "2a82ea22-9694-4c65-b72f-c89ae49d1ab2",
    "metadata": {},
    "outputs": [],
@@ -479,10 +516,23 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 20,
    "id": "2e850c03-33c6-4c88-95d3-d14146a6a0af",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\u001b[32m2024-Dec-03 10:16:48.97\u001b[0m| \u001b[33m\u001b[1mWARNING \u001b[0m | \u001b[36mDuncans-MBP.fritz.box\u001b[0m| \u001b[36msuperduper.components.listener\u001b[0m:\u001b[36m74  \u001b[0m | \u001b[33m\u001b[1moutput_table not found in listener.dict()\u001b[0m\n",
+      "\u001b[32m2024-Dec-03 10:16:48.97\u001b[0m| \u001b[33m\u001b[1mWARNING \u001b[0m | \u001b[36mDuncans-MBP.fritz.box\u001b[0m| \u001b[36msuperduper.components.listener\u001b[0m:\u001b[36m74  \u001b[0m | \u001b[33m\u001b[1moutput_table not found in listener.dict()\u001b[0m\n",
+      "\u001b[32m2024-Dec-03 10:16:48.97\u001b[0m| \u001b[33m\u001b[1mWARNING \u001b[0m | \u001b[36mDuncans-MBP.fritz.box\u001b[0m| \u001b[36msuperduper.base.document\u001b[0m:\u001b[36m558 \u001b[0m | \u001b[33m\u001b[1mLeaf listener:chunker already exists\u001b[0m\n",
+      "\u001b[32m2024-Dec-03 10:16:48.97\u001b[0m| \u001b[33m\u001b[1mWARNING \u001b[0m | \u001b[36mDuncans-MBP.fritz.box\u001b[0m| \u001b[36msuperduper.components.listener\u001b[0m:\u001b[36m74  \u001b[0m | \u001b[33m\u001b[1moutput_table not found in listener.dict()\u001b[0m\n",
+      "\u001b[32m2024-Dec-03 10:16:48.97\u001b[0m| \u001b[33m\u001b[1mWARNING \u001b[0m | \u001b[36mDuncans-MBP.fritz.box\u001b[0m| \u001b[36msuperduper.base.document\u001b[0m:\u001b[36m558 \u001b[0m | \u001b[33m\u001b[1mLeaf model:chunker already exists\u001b[0m\n",
+      "\u001b[32m2024-Dec-03 10:16:48.98\u001b[0m| \u001b[33m\u001b[1mWARNING \u001b[0m | \u001b[36mDuncans-MBP.fritz.box\u001b[0m| \u001b[36msuperduper.base.document\u001b[0m:\u001b[36m558 \u001b[0m | \u001b[33m\u001b[1mLeaf var-table-name-select-var-id-field-x already exists\u001b[0m\n"
+     ]
+    }
+   ],
    "source": [
     "from superduper import Template, Table, Schema\n",
     "from superduper.components.dataset import RemoteData\n",
@@ -537,20 +587,39 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 21,
    "id": "66d77fc5-65e9-4f2d-ac74-13c8fa3c3acc",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "Schema(identifier='RemoteData/class_schema', uuid='09196795da834f25', upstream=None, plugins=None, cache=True, status=None, build_variables=None, build_template=None, fields={'getter': DillSerializer(identifier='default', uuid='0e8771fabb3a4624', upstream=None, plugins=None, cache=True, status=None, build_variables=None, build_template=None)})"
+      ]
+     },
+     "execution_count": 21,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "template.default_table.data.build_class_schema()"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 22,
    "id": "8924ba0d-7c01-4d6c-87fb-245531db7506",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\u001b[32m2024-Dec-03 10:16:48.99\u001b[0m| \u001b[33m\u001b[1mWARNING \u001b[0m | \u001b[36mDuncans-MBP.fritz.box\u001b[0m| \u001b[36msuperduper.base.document\u001b[0m:\u001b[36m558 \u001b[0m | \u001b[33m\u001b[1mLeaf str already exists\u001b[0m\n"
+     ]
+    }
+   ],
    "source": [
     "template.export('.')"
    ]
diff --git a/templates/simple_rag/component.json b/templates/simple_rag/component.json
index ddd7df315..f88d312c6 100644
--- a/templates/simple_rag/component.json
+++ b/templates/simple_rag/component.json
@@ -276,4 +276,4 @@
     }
   },
   "_files": {}
-}
\ No newline at end of file
+}