diff --git a/lovefield/lovefield-tests.ts b/lovefield/lovefield-tests.ts
index 45de3299dd..b9bc73a82c 100644
--- a/lovefield/lovefield-tests.ts
+++ b/lovefield/lovefield-tests.ts
@@ -9,7 +9,9 @@ function main(): void {
       addColumn('deadline', lf.Type.DATE_TIME).
       addColumn('done', lf.Type.BOOLEAN).
       addPrimaryKey(['id'], false).
-      addIndex('idxDeadline', ['deadline'], false, lf.Order.DESC);
+      addIndex('idxDeadline', ['deadline'], false, lf.Order.DESC).
+      addNullable(['deadline']).
+      addUnique('uq_description', ['description']);
 
   var todoDb: lf.Database = null;
   var itemSchema: lf.schema.Table = null;
diff --git a/lovefield/lovefield.d.ts b/lovefield/lovefield.d.ts
index dc91b9f909..0b0afe023b 100644
--- a/lovefield/lovefield.d.ts
+++ b/lovefield/lovefield.d.ts
@@ -199,11 +199,11 @@ declare module lf {
       addIndex(
           name: string, columns: Array<string>|Array<IndexedColumn>,
           unique?: boolean, order?: Order): TableBuilder
-      addNullable(columns: Array<Column>): TableBuilder
+      addNullable(columns: Array<string>): TableBuilder
       addPrimaryKey(
           columns: Array<string>|Array<IndexedColumn>,
           autoInc?: boolean): TableBuilder
-      addUnique(name: string, columns: Array<Column>): TableBuilder
+      addUnique(name: string, columns: Array<string>): TableBuilder
     }
 
     function create(dbName: string, dbVersion: number): Builder