example code

docs/src/javascript/saas-modules.md

@@ -46,25 +46,37 @@ const db = await lancedb.connect({
 });
 // create a new table
 const tableName = "my_table"
-const table = await db.createTable(tableName,
-      [
-           { id: 1, vector: [0.1, 1.0], item: "foo", price: 10.0 },
-           { id: 2, vector: [3.9, 0.5], item: "bar", price: 20.0 }
-      ]
+const data = [
+    { id: 1, vector: [0.1, 1.0], item: "foo", price: 10.0 },
+    { id: 2, vector: [3.9, 0.5], item: "bar", price: 20.0 }
+]
+const schema = new Schema(
+    [
+        new Field('id', new Int32()), 
+        new Field('vector', new FixedSizeList(2, new Field('float32', new Float32()))),
+        new Field('item', new String()),
+        new Field('price', new Float32())
+    ]
+)
+const table = await db.createTable(
+    tableName,
+    schema,
+    data
 )
 // list the table
 const tableNames_1 = await db.tableNames('')
 // add some data and search should be okay
-const data = [
+const newData = [
       { id: 3, vector: [10.3, 1.9], item: "test1", price: 30.0 }, 
       { id: 4, vector: [6.2, 9.2], item: "test2", price: 40.0 }
 ]
+table.add(newData)
 // create the index for the table
 await table.createIndex({
       metric_type: 'L2', 
       column: 'vector'
 })
-let result = await table.search([2.8, 4.3]]).select(["vector", "price"]).limit(1).execute()
+let result = await table.search([2.8, 4.3]).select(["vector", "price"]).limit(1).execute()
 // update the data
 await table.update({ 
       where: "id == 1",