CREATE DATABASE spider_test;

GRANT ALL PRIVILEGES ON spider_test.* TO spider_test@'%' IDENTIFIED BY 'password';

USE spider_test;

CREATE TABLE local_tab (

   id int auto_increment primary key,

   str varchar(50)

) ENGINE=InnoDB;

CREATE SERVER srv1 

  FOREIGN DATA WRAPPER mysql 

OPTIONS( 

  HOST '172.30.0.249', 

  DATABASE 'spider_test',

  USER 'spider_test',

  PASSWORD 'password'

);

CREATE DATABASE spider_test;

USE spider_test;

CREATE TABLE spider_tab (

   id int auto_increment primary key,

   str varchar(50)

) ENGINE=Spider COMMENT='wrapper "mysql", srv "srv1", table "local_tab"';

MariaDB [spider_test]> SELECT * FROM spider_tab;

ERROR 1227 (42000): Access denied; you need (at least one of) the SUPER privilege(s) for this operation

$ mysql -h 172.30.0.249 -u spider_test -ppassword spider_test

Reading table information for completion of table and column names

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Your MariaDB connection id is 15

Server version: 10.1.31-MariaDB MariaDB Server

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Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [spider_test]> SELECT * FROM local_tab;

Empty set (0.00 sec)

GRANT SUPER ON *.* TO spider_test@'%';

MariaDB [spider_test]> SELECT * FROM spider_tab;

Empty set (0.01 sec)