fix: BI-52681 修复模式显示方式

src/modules/pages/maintain/forms/components/form.jdbc.ts

@@ -350,7 +350,7 @@ export class FormJdbc extends BI.Widget {
                             vgap: 15,
                             disabled: true,
                             value: schema,
-                            items: this.schemas,
+                            items: schema ? [{ text: schema, value:schema }] : [],
                             ref: (_ref: any) => {
                                 this.form.schema = _ref;
                             },