Hide autoindex params details (#24851) (#24935)

Signed-off-by: Nzhenshan.cao <zhenshan.cao@zilliz.com>
Co-authored-by: Nzhenshan.cao <zhenshan.cao@zilliz.com>

internal/proxy/task_index.go

@@ -496,7 +496,10 @@ func (dit *describeIndexTask) Execute(ctx context.Context) error {
 		}
 		params := indexInfo.GetUserIndexParams()
 		if params == nil {
-			params = indexInfo.GetIndexParams()
+			metricType, err := funcutil.GetAttrByKeyFromRepeatedKV(MetricTypeKey, indexInfo.GetIndexParams())
+			if err == nil {
+				params = wrapUserIndexParams(metricType)
+			}
 		}
 		desc := &milvuspb.IndexDescription{
 			IndexName:            indexInfo.GetIndexName(),

pkg/util/funcutil/func_test.go

@@ -104,6 +104,10 @@ func TestGetAttrByKeyFromRepeatedKV(t *testing.T) {
 		assert.Equal(t, test.value, value)
 		assert.Equal(t, test.errIsNil, err == nil)
 	}
+
+	value, err := GetAttrByKeyFromRepeatedKV("key1", nil)
+	assert.Equal(t, "", value)
+	assert.Error(t, err)
 }
 
 func TestCheckCtxValid(t *testing.T) {