SET @transaction_isolation= @@global.transaction_isolation;
SET GLOBAL TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
INSERT INTO cache_policies VALUES("cache_policy", "innodb_only",
"innodb_only", "innodb_only", "innodb_only");
INSERT INTO config_options VALUES("separator", "|");
INSERT INTO containers VALUES ("desc_t1", "test", "t1",
"c1", "c2,c21", "c3", "c4", "c5", "PRIMARY");
CREATE USER mysqltest1@localhost;
CREATE USER mysqltest2@localhost;
connect  mysqltest1,localhost,mysqltest1,,;
connect  mysqltest2,localhost,mysqltest2,,;
connection mysqltest1;
USE test;
DROP TABLE IF EXISTS t1;
CREATE TABLE t1        (c1 VARCHAR(32),
c2 VARCHAR(1024),
c21 VARCHAR(1024),
c3 INT, c4 BIGINT UNSIGNED, c5 INT, primary key(c1))
ENGINE = INNODB;
DROP TABLE IF EXISTS t2;
CREATE TABLE t2        (c1 VARCHAR(32),
c2 VARCHAR(255),
c21 VARCHAR(255),
c3 INT, c4 BIGINT UNSIGNED, c5 INT, primary key(c1))
ENGINE = INNODB;
INSERT INTO t1 VALUES ('D', 'Darmstadt', 'City', 0, 0, 0);
INSERT INTO t1 VALUES ('B', 'Berlin', 'Mitte', 0, 0, 0);
INSERT INTO t1 VALUES ('C', 'Cottbus', 'West', 0, 0 ,0);
INSERT INTO t1 VALUES ('H', 'Hamburg', 'Norderstedt', 0, 0, 0);
INSERT INTO t2 VALUES ('D', 'Darmstadt', 'City', 0, 0, 0);
INSERT INTO t2 VALUES ('B', 'Berlin', 'Mitte', 0, 0, 0);
INSERT INTO t2 VALUES ('C', 'Cottbus', 'West', 0, 0 ,0);
INSERT INTO t2 VALUES ('H', 'Hamburg', 'Norderstedt', 0, 0, 0);
connection default;
INSTALL PLUGIN daemon_memcached SONAME 'libmemcached.so';
connection mysqltest2;
USE test;
SELECT c1,c2,c21 FROM t1;
c1	c2	c21
B	Berlin	Mitte
C	Cottbus	West
D	Darmstadt	City
H	Hamburg	Norderstedt
connection mysqltest1;
send ALTER TABLE t1 DROP c21
ALTER TABLE t1 DROP c21;
reap
Here are the memcached results with D,B,H,C:
Here are the memcached results after set:
Here are the memcached results after add:
Here are the memcached results after replace:
Here are the memcached results after delete:
Here are the memcached results after add Frankfurt|:
Here are the memcached results after add |Airport:
Here are the memcached results after replace Frankfurt a.M.:
Here are the memcached results after replace Sachsenhausen:
SHOW CREATE TABLE t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `c1` varchar(32) NOT NULL,
  `c2` varchar(1024) DEFAULT NULL,
  `c3` int(11) DEFAULT NULL,
  `c4` bigint(20) unsigned DEFAULT NULL,
  `c5` int(11) DEFAULT NULL,
  PRIMARY KEY (`c1`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
SELECT c1,c2,c21 FROM t1;
ERROR 42S22: Unknown column 'c21' in 'field list'
DROP TABLE t1;
DROP TABLE t2;
connection default;
disconnect mysqltest1;
disconnect mysqltest2;
UNINSTALL PLUGIN daemon_memcached;
DROP DATABASE innodb_memcache;
DROP USER mysqltest1@localhost;
DROP USER mysqltest2@localhost;
SET @@global.transaction_isolation= @transaction_isolation;