public static String getSchemaDataPath(final String databaseName, final String schemaName) {
        return String.join("/", getSchemasPath(databaseName), schemaName);
    }
@Test
    void assertGetSchemaDataPath() {
        assertThat(ShardingSphereDataNode.getSchemaDataPath("db_name", "db_schema"), is("/statistics/databases/db_name/schemas/db_schema"));
    }