diff --git a/internal/runtime/memory/vector/pg_test.go b/internal/runtime/memory/vector/pg_test.go
index 1cfcd5c..8c7b89d 100644
--- a/internal/runtime/memory/vector/pg_test.go
+++ b/internal/runtime/memory/vector/pg_test.go
@@ -89,4 +89,23 @@ func TestPG_RequiresEnv(t *testing.T) {
 	if len(vs) != 1 || len(vs[0]) != 4 {
 		t.Fatalf("Embed => %d vectors, want one 4-dim", len(vs))
 	}
+
+	// Vectors（增量向量化的读口）：命中按位置给出，未命中为 nil ——
+	// 这条断言顺带验 vector::text 的解析在真实 pgvector 上成立。
+	got, err := idx.Vectors(ctx, []string{"b", "missing", "a"})
+	if err != nil {
+		t.Fatalf("Vectors: %v", err)
+	}
+	if len(got) != 3 {
+		t.Fatalf("Vectors 返回 %d 条, want 3", len(got))
+	}
+	if !equalVector(got[0], Vector{0, 1, 0, 0}) {
+		t.Fatalf("Vectors[0] = %v, want b 的向量", got[0])
+	}
+	if len(got[1]) != 0 {
+		t.Fatalf("未命中的 id 返回了向量：%v", got[1])
+	}
+	if !equalVector(got[2], Vector{1, 0, 0, 0}) {
+		t.Fatalf("Vectors[2] = %v, want a 的向量", got[2])
+	}
 }