feat(napi): Provide a new createIndex API in the napi SDK. (#857)

nodejs/src/table.rs

@@ -12,12 +12,14 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use crate::query::Query;
 use arrow_ipc::writer::FileWriter;
 use napi::bindgen_prelude::*;
 use napi_derive::napi;
 use vectordb::{ipc::ipc_file_to_batches, table::TableRef};
 
+use crate::index::IndexBuilder;
+use crate::query::Query;
+
 #[napi]
 pub struct Table {
     pub(crate) table: TableRef,
@@ -43,7 +45,7 @@ impl Table {
     }
 
     #[napi]
-    pub async unsafe fn add(&mut self, buf: Buffer) -> napi::Result<()> {
+    pub async fn add(&self, buf: Buffer) -> napi::Result<()> {
         let batches = ipc_file_to_batches(buf.to_vec())
             .map_err(|e| napi::Error::from_reason(format!("Failed to read IPC file: {}", e)))?;
         self.table.add(Box::new(batches), None).await.map_err(|e| {
@@ -65,7 +67,7 @@ impl Table {
     }
 
     #[napi]
-    pub async unsafe fn delete(&mut self, predicate: String) -> napi::Result<()> {
+    pub async fn delete(&self, predicate: String) -> napi::Result<()> {
         self.table.delete(&predicate).await.map_err(|e| {
             napi::Error::from_reason(format!(
                 "Failed to delete rows in table {}: predicate={}",
@@ -74,6 +76,11 @@ impl Table {
         })
     }
 
+    #[napi]
+    pub fn create_index(&self) -> IndexBuilder {
+        IndexBuilder::new(self.table.as_ref())
+    }
+
     #[napi]
     pub fn query(&self) -> Query {
         Query::new(self)