updates

src/lib/schema/build-column-definition.ts

@@ -1,4 +1,5 @@
 import type { BUN_MARIADB_FieldSchemaType } from "../../types";
+import isVectorField from "./is-vector-field";
 import mapDataType from "./map-data-types";
 import MariaDBQuoteGen from "./mariadb-quote-gen";
 
@@ -16,13 +17,19 @@ export default function buildColumnDefinition(
         parts.push("AUTO_INCREMENT");
     }
 
-    if (field.notNullValue || field.primaryKey || field.isVector) {
+    // Vector columns used in VECTOR INDEX must be NOT NULL
+    if (
+        field.notNullValue ||
+        field.primaryKey ||
+        isVectorField(field)
+    ) {
         if (!field.primaryKey) {
             parts.push("NOT NULL");
         }
     }
 
-    if (field.unique && !field.primaryKey) {
+    // VECTOR columns cannot be UNIQUE in the usual sense
+    if (field.unique && !field.primaryKey && !isVectorField(field)) {
         parts.push("UNIQUE");
     }