diff --git a/include/mysql_com.h b/include/mysql_com.h
index a63bcc9d87e..398bf9058df 100644
--- a/include/mysql_com.h
+++ b/include/mysql_com.h
@@ -26,7 +26,7 @@
 #define HOSTNAME_LENGTH 60
 #define SYSTEM_CHARSET_MBMAXLEN 3
 #define NAME_CHAR_LEN	64U             /* Field/table name length */
-#define USERNAME_CHAR_LENGTH 128U
+#define USERNAME_CHAR_LENGTH 128
 #define NAME_LEN                (NAME_CHAR_LEN*SYSTEM_CHARSET_MBMAXLEN)
 #define USERNAME_LENGTH         (USERNAME_CHAR_LENGTH*SYSTEM_CHARSET_MBMAXLEN)
 #define DEFINER_CHAR_LENGTH     (USERNAME_CHAR_LENGTH + HOSTNAME_LENGTH + 1)
diff --git a/mysql-test/suite/perfschema/r/schema.result b/mysql-test/suite/perfschema/r/schema.result
index 1f331394df6..8ce4cad4f4b 100644
--- a/mysql-test/suite/perfschema/r/schema.result
+++ b/mysql-test/suite/perfschema/r/schema.result
@@ -62,7 +62,7 @@ users
 show create table accounts;
 Table	Create Table
 accounts	CREATE TABLE `accounts` (
-  `USER` char(16) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
+  `USER` char(128) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
   `HOST` char(60) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
   `CURRENT_CONNECTIONS` bigint(20) NOT NULL,
   `TOTAL_CONNECTIONS` bigint(20) NOT NULL
@@ -140,7 +140,7 @@ events_stages_summary_by_thread_by_event_name	CREATE TABLE `events_stages_summar
 show create table events_stages_summary_by_user_by_event_name;
 Table	Create Table
 events_stages_summary_by_user_by_event_name	CREATE TABLE `events_stages_summary_by_user_by_event_name` (
-  `USER` char(16) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
+  `USER` char(128) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
   `EVENT_NAME` varchar(128) NOT NULL,
   `COUNT_STAR` bigint(20) unsigned NOT NULL,
   `SUM_TIMER_WAIT` bigint(20) unsigned NOT NULL,
@@ -151,7 +151,7 @@ events_stages_summary_by_user_by_event_name	CREATE TABLE `events_stages_summary_
 show create table events_stages_summary_by_account_by_event_name;
 Table	Create Table
 events_stages_summary_by_account_by_event_name	CREATE TABLE `events_stages_summary_by_account_by_event_name` (
-  `USER` char(16) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
+  `USER` char(128) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
   `HOST` char(60) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
   `EVENT_NAME` varchar(128) NOT NULL,
   `COUNT_STAR` bigint(20) unsigned NOT NULL,
@@ -398,7 +398,7 @@ events_statements_summary_by_thread_by_event_name	CREATE TABLE `events_statement
 show create table events_statements_summary_by_user_by_event_name;
 Table	Create Table
 events_statements_summary_by_user_by_event_name	CREATE TABLE `events_statements_summary_by_user_by_event_name` (
-  `USER` char(16) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
+  `USER` char(128) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
   `EVENT_NAME` varchar(128) NOT NULL,
   `COUNT_STAR` bigint(20) unsigned NOT NULL,
   `SUM_TIMER_WAIT` bigint(20) unsigned NOT NULL,
@@ -428,7 +428,7 @@ events_statements_summary_by_user_by_event_name	CREATE TABLE `events_statements_
 show create table events_statements_summary_by_account_by_event_name;
 Table	Create Table
 events_statements_summary_by_account_by_event_name	CREATE TABLE `events_statements_summary_by_account_by_event_name` (
-  `USER` char(16) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
+  `USER` char(128) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
   `HOST` char(60) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
   `EVENT_NAME` varchar(128) NOT NULL,
   `COUNT_STAR` bigint(20) unsigned NOT NULL,
@@ -590,7 +590,7 @@ events_waits_summary_by_thread_by_event_name	CREATE TABLE `events_waits_summary_
 show create table events_waits_summary_by_user_by_event_name;
 Table	Create Table
 events_waits_summary_by_user_by_event_name	CREATE TABLE `events_waits_summary_by_user_by_event_name` (
-  `USER` char(16) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
+  `USER` char(128) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
   `EVENT_NAME` varchar(128) NOT NULL,
   `COUNT_STAR` bigint(20) unsigned NOT NULL,
   `SUM_TIMER_WAIT` bigint(20) unsigned NOT NULL,
@@ -601,7 +601,7 @@ events_waits_summary_by_user_by_event_name	CREATE TABLE `events_waits_summary_by
 show create table events_waits_summary_by_account_by_event_name;
 Table	Create Table
 events_waits_summary_by_account_by_event_name	CREATE TABLE `events_waits_summary_by_account_by_event_name` (
-  `USER` char(16) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
+  `USER` char(128) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
   `HOST` char(60) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
   `EVENT_NAME` varchar(128) NOT NULL,
   `COUNT_STAR` bigint(20) unsigned NOT NULL,
@@ -762,8 +762,8 @@ show create table setup_actors;
 Table	Create Table
 setup_actors	CREATE TABLE `setup_actors` (
   `HOST` char(60) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '%',
-  `USER` char(16) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '%',
-  `ROLE` char(16) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '%'
+  `USER` char(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '%',
+  `ROLE` char(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '%'
 ) ENGINE=PERFORMANCE_SCHEMA DEFAULT CHARSET=utf8
 show create table setup_consumers;
 Table	Create Table
@@ -1028,7 +1028,7 @@ threads	CREATE TABLE `threads` (
   `NAME` varchar(128) NOT NULL,
   `TYPE` varchar(10) NOT NULL,
   `PROCESSLIST_ID` bigint(20) unsigned DEFAULT NULL,
-  `PROCESSLIST_USER` varchar(16) DEFAULT NULL,
+  `PROCESSLIST_USER` varchar(128) DEFAULT NULL,
   `PROCESSLIST_HOST` varchar(60) DEFAULT NULL,
   `PROCESSLIST_DB` varchar(64) DEFAULT NULL,
   `PROCESSLIST_COMMAND` varchar(16) DEFAULT NULL,
@@ -1042,7 +1042,7 @@ threads	CREATE TABLE `threads` (
 show create table users;
 Table	Create Table
 users	CREATE TABLE `users` (
-  `USER` char(16) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
+  `USER` char(128) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL,
   `CURRENT_CONNECTIONS` bigint(20) NOT NULL,
   `TOTAL_CONNECTIONS` bigint(20) NOT NULL
 ) ENGINE=PERFORMANCE_SCHEMA DEFAULT CHARSET=utf8
diff --git a/mysql-test/suite/perfschema/r/table_schema.result b/mysql-test/suite/perfschema/r/table_schema.result
index 5c4cf88e9a5..a9beee31f28 100644
--- a/mysql-test/suite/perfschema/r/table_schema.result
+++ b/mysql-test/suite/perfschema/r/table_schema.result
@@ -1,7 +1,7 @@
 select * from information_schema.columns where table_schema="performance_schema"
    order by table_name, ordinal_position;
 TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	COLUMN_NAME	ORDINAL_POSITION	COLUMN_DEFAULT	IS_NULLABLE	DATA_TYPE	CHARACTER_MAXIMUM_LENGTH	CHARACTER_OCTET_LENGTH	NUMERIC_PRECISION	NUMERIC_SCALE	DATETIME_PRECISION	CHARACTER_SET_NAME	COLLATION_NAME	COLUMN_TYPE	COLUMN_KEY	EXTRA	PRIVILEGES	COLUMN_COMMENT	IS_GENERATED	GENERATION_EXPRESSION
-def	performance_schema	accounts	USER	1	NULL	YES	char	16	48	NULL	NULL	NULL	utf8	utf8_bin	char(16)			select,insert,update,references		NEVER	NULL
+def	performance_schema	accounts	USER	1	NULL	YES	char	128	384	NULL	NULL	NULL	utf8	utf8_bin	char(128)			select,insert,update,references		NEVER	NULL
 def	performance_schema	accounts	HOST	2	NULL	YES	char	60	180	NULL	NULL	NULL	utf8	utf8_bin	char(60)			select,insert,update,references		NEVER	NULL
 def	performance_schema	accounts	CURRENT_CONNECTIONS	3	NULL	NO	bigint	NULL	NULL	19	0	NULL	NULL	NULL	bigint(20)			select,insert,update,references		NEVER	NULL
 def	performance_schema	accounts	TOTAL_CONNECTIONS	4	NULL	NO	bigint	NULL	NULL	19	0	NULL	NULL	NULL	bigint(20)			select,insert,update,references		NEVER	NULL
@@ -37,7 +37,7 @@ def	performance_schema	events_stages_history_long	TIMER_END	7	NULL	YES	bigint	NU
 def	performance_schema	events_stages_history_long	TIMER_WAIT	8	NULL	YES	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_stages_history_long	NESTING_EVENT_ID	9	NULL	YES	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_stages_history_long	NESTING_EVENT_TYPE	10	NULL	YES	enum	9	27	NULL	NULL	NULL	utf8	utf8_general_ci	enum('STATEMENT','STAGE','WAIT')			select,insert,update,references		NEVER	NULL
-def	performance_schema	events_stages_summary_by_account_by_event_name	USER	1	NULL	YES	char	16	48	NULL	NULL	NULL	utf8	utf8_bin	char(16)			select,insert,update,references		NEVER	NULL
+def	performance_schema	events_stages_summary_by_account_by_event_name	USER	1	NULL	YES	char	128	384	NULL	NULL	NULL	utf8	utf8_bin	char(128)			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_stages_summary_by_account_by_event_name	HOST	2	NULL	YES	char	60	180	NULL	NULL	NULL	utf8	utf8_bin	char(60)			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_stages_summary_by_account_by_event_name	EVENT_NAME	3	NULL	NO	varchar	128	384	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(128)			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_stages_summary_by_account_by_event_name	COUNT_STAR	4	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
@@ -59,7 +59,7 @@ def	performance_schema	events_stages_summary_by_thread_by_event_name	SUM_TIMER_W
 def	performance_schema	events_stages_summary_by_thread_by_event_name	MIN_TIMER_WAIT	5	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_stages_summary_by_thread_by_event_name	AVG_TIMER_WAIT	6	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_stages_summary_by_thread_by_event_name	MAX_TIMER_WAIT	7	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
-def	performance_schema	events_stages_summary_by_user_by_event_name	USER	1	NULL	YES	char	16	48	NULL	NULL	NULL	utf8	utf8_bin	char(16)			select,insert,update,references		NEVER	NULL
+def	performance_schema	events_stages_summary_by_user_by_event_name	USER	1	NULL	YES	char	128	384	NULL	NULL	NULL	utf8	utf8_bin	char(128)			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_stages_summary_by_user_by_event_name	EVENT_NAME	2	NULL	NO	varchar	128	384	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(128)			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_stages_summary_by_user_by_event_name	COUNT_STAR	3	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_stages_summary_by_user_by_event_name	SUM_TIMER_WAIT	4	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
@@ -192,7 +192,7 @@ def	performance_schema	events_statements_history_long	NO_INDEX_USED	37	NULL	NO	b
 def	performance_schema	events_statements_history_long	NO_GOOD_INDEX_USED	38	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_statements_history_long	NESTING_EVENT_ID	39	NULL	YES	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_statements_history_long	NESTING_EVENT_TYPE	40	NULL	YES	enum	9	27	NULL	NULL	NULL	utf8	utf8_general_ci	enum('STATEMENT','STAGE','WAIT')			select,insert,update,references		NEVER	NULL
-def	performance_schema	events_statements_summary_by_account_by_event_name	USER	1	NULL	YES	char	16	48	NULL	NULL	NULL	utf8	utf8_bin	char(16)			select,insert,update,references		NEVER	NULL
+def	performance_schema	events_statements_summary_by_account_by_event_name	USER	1	NULL	YES	char	128	384	NULL	NULL	NULL	utf8	utf8_bin	char(128)			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_statements_summary_by_account_by_event_name	HOST	2	NULL	YES	char	60	180	NULL	NULL	NULL	utf8	utf8_bin	char(60)			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_statements_summary_by_account_by_event_name	EVENT_NAME	3	NULL	NO	varchar	128	384	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(128)			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_statements_summary_by_account_by_event_name	COUNT_STAR	4	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
@@ -300,7 +300,7 @@ def	performance_schema	events_statements_summary_by_thread_by_event_name	SUM_SOR
 def	performance_schema	events_statements_summary_by_thread_by_event_name	SUM_SORT_SCAN	24	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_statements_summary_by_thread_by_event_name	SUM_NO_INDEX_USED	25	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_statements_summary_by_thread_by_event_name	SUM_NO_GOOD_INDEX_USED	26	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
-def	performance_schema	events_statements_summary_by_user_by_event_name	USER	1	NULL	YES	char	16	48	NULL	NULL	NULL	utf8	utf8_bin	char(16)			select,insert,update,references		NEVER	NULL
+def	performance_schema	events_statements_summary_by_user_by_event_name	USER	1	NULL	YES	char	128	384	NULL	NULL	NULL	utf8	utf8_bin	char(128)			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_statements_summary_by_user_by_event_name	EVENT_NAME	2	NULL	NO	varchar	128	384	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(128)			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_statements_summary_by_user_by_event_name	COUNT_STAR	3	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_statements_summary_by_user_by_event_name	SUM_TIMER_WAIT	4	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
@@ -408,7 +408,7 @@ def	performance_schema	events_waits_history_long	NESTING_EVENT_TYPE	16	NULL	YES
 def	performance_schema	events_waits_history_long	OPERATION	17	NULL	NO	varchar	32	96	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(32)			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_waits_history_long	NUMBER_OF_BYTES	18	NULL	YES	bigint	NULL	NULL	19	0	NULL	NULL	NULL	bigint(20)			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_waits_history_long	FLAGS	19	NULL	YES	int	NULL	NULL	10	0	NULL	NULL	NULL	int(10) unsigned			select,insert,update,references		NEVER	NULL
-def	performance_schema	events_waits_summary_by_account_by_event_name	USER	1	NULL	YES	char	16	48	NULL	NULL	NULL	utf8	utf8_bin	char(16)			select,insert,update,references		NEVER	NULL
+def	performance_schema	events_waits_summary_by_account_by_event_name	USER	1	NULL	YES	char	128	384	NULL	NULL	NULL	utf8	utf8_bin	char(128)			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_waits_summary_by_account_by_event_name	HOST	2	NULL	YES	char	60	180	NULL	NULL	NULL	utf8	utf8_bin	char(60)			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_waits_summary_by_account_by_event_name	EVENT_NAME	3	NULL	NO	varchar	128	384	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(128)			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_waits_summary_by_account_by_event_name	COUNT_STAR	4	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
@@ -437,7 +437,7 @@ def	performance_schema	events_waits_summary_by_thread_by_event_name	SUM_TIMER_WA
 def	performance_schema	events_waits_summary_by_thread_by_event_name	MIN_TIMER_WAIT	5	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_waits_summary_by_thread_by_event_name	AVG_TIMER_WAIT	6	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_waits_summary_by_thread_by_event_name	MAX_TIMER_WAIT	7	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
-def	performance_schema	events_waits_summary_by_user_by_event_name	USER	1	NULL	YES	char	16	48	NULL	NULL	NULL	utf8	utf8_bin	char(16)			select,insert,update,references		NEVER	NULL
+def	performance_schema	events_waits_summary_by_user_by_event_name	USER	1	NULL	YES	char	128	384	NULL	NULL	NULL	utf8	utf8_bin	char(128)			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_waits_summary_by_user_by_event_name	EVENT_NAME	2	NULL	NO	varchar	128	384	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(128)			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_waits_summary_by_user_by_event_name	COUNT_STAR	3	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
 def	performance_schema	events_waits_summary_by_user_by_event_name	SUM_TIMER_WAIT	4	NULL	NO	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
@@ -561,8 +561,8 @@ def	performance_schema	session_connect_attrs	ATTR_NAME	2	NULL	NO	varchar	32	96	N
 def	performance_schema	session_connect_attrs	ATTR_VALUE	3	NULL	YES	varchar	1024	3072	NULL	NULL	NULL	utf8	utf8_bin	varchar(1024)			select,insert,update,references		NEVER	NULL
 def	performance_schema	session_connect_attrs	ORDINAL_POSITION	4	NULL	YES	int	NULL	NULL	10	0	NULL	NULL	NULL	int(11)			select,insert,update,references		NEVER	NULL
 def	performance_schema	setup_actors	HOST	1	'%'	NO	char	60	180	NULL	NULL	NULL	utf8	utf8_bin	char(60)			select,insert,update,references		NEVER	NULL
-def	performance_schema	setup_actors	USER	2	'%'	NO	char	16	48	NULL	NULL	NULL	utf8	utf8_bin	char(16)			select,insert,update,references		NEVER	NULL
-def	performance_schema	setup_actors	ROLE	3	'%'	NO	char	16	48	NULL	NULL	NULL	utf8	utf8_bin	char(16)			select,insert,update,references		NEVER	NULL
+def	performance_schema	setup_actors	USER	2	'%'	NO	char	128	384	NULL	NULL	NULL	utf8	utf8_bin	char(128)			select,insert,update,references		NEVER	NULL
+def	performance_schema	setup_actors	ROLE	3	'%'	NO	char	128	384	NULL	NULL	NULL	utf8	utf8_bin	char(128)			select,insert,update,references		NEVER	NULL
 def	performance_schema	setup_consumers	NAME	1	NULL	NO	varchar	64	192	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(64)			select,insert,update,references		NEVER	NULL
 def	performance_schema	setup_consumers	ENABLED	2	NULL	NO	enum	3	9	NULL	NULL	NULL	utf8	utf8_general_ci	enum('YES','NO')			select,insert,update,references		NEVER	NULL
 def	performance_schema	setup_instruments	NAME	1	NULL	NO	varchar	128	384	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(128)			select,insert,update,references		NEVER	NULL
@@ -783,7 +783,7 @@ def	performance_schema	threads	THREAD_ID	1	NULL	NO	bigint	NULL	NULL	20	0	NULL	NU
 def	performance_schema	threads	NAME	2	NULL	NO	varchar	128	384	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(128)			select,insert,update,references		NEVER	NULL
 def	performance_schema	threads	TYPE	3	NULL	NO	varchar	10	30	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(10)			select,insert,update,references		NEVER	NULL
 def	performance_schema	threads	PROCESSLIST_ID	4	NULL	YES	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
-def	performance_schema	threads	PROCESSLIST_USER	5	NULL	YES	varchar	16	48	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(16)			select,insert,update,references		NEVER	NULL
+def	performance_schema	threads	PROCESSLIST_USER	5	NULL	YES	varchar	128	384	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(128)			select,insert,update,references		NEVER	NULL
 def	performance_schema	threads	PROCESSLIST_HOST	6	NULL	YES	varchar	60	180	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(60)			select,insert,update,references		NEVER	NULL
 def	performance_schema	threads	PROCESSLIST_DB	7	NULL	YES	varchar	64	192	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(64)			select,insert,update,references		NEVER	NULL
 def	performance_schema	threads	PROCESSLIST_COMMAND	8	NULL	YES	varchar	16	48	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(16)			select,insert,update,references		NEVER	NULL
@@ -793,7 +793,7 @@ def	performance_schema	threads	PROCESSLIST_INFO	11	NULL	YES	longtext	4294967295
 def	performance_schema	threads	PARENT_THREAD_ID	12	NULL	YES	bigint	NULL	NULL	20	0	NULL	NULL	NULL	bigint(20) unsigned			select,insert,update,references		NEVER	NULL
 def	performance_schema	threads	ROLE	13	NULL	YES	varchar	64	192	NULL	NULL	NULL	utf8	utf8_general_ci	varchar(64)			select,insert,update,references		NEVER	NULL
 def	performance_schema	threads	INSTRUMENTED	14	NULL	NO	enum	3	9	NULL	NULL	NULL	utf8	utf8_general_ci	enum('YES','NO')			select,insert,update,references		NEVER	NULL
-def	performance_schema	users	USER	1	NULL	YES	char	16	48	NULL	NULL	NULL	utf8	utf8_bin	char(16)			select,insert,update,references		NEVER	NULL
+def	performance_schema	users	USER	1	NULL	YES	char	128	384	NULL	NULL	NULL	utf8	utf8_bin	char(128)			select,insert,update,references		NEVER	NULL
 def	performance_schema	users	CURRENT_CONNECTIONS	2	NULL	NO	bigint	NULL	NULL	19	0	NULL	NULL	NULL	bigint(20)			select,insert,update,references		NEVER	NULL
 def	performance_schema	users	TOTAL_CONNECTIONS	3	NULL	NO	bigint	NULL	NULL	19	0	NULL	NULL	NULL	bigint(20)			select,insert,update,references		NEVER	NULL
 select count(*) from information_schema.columns
diff --git a/storage/perfschema/table_accounts.cc b/storage/perfschema/table_accounts.cc
index 708f8269a69..550f6614abb 100644
--- a/storage/perfschema/table_accounts.cc
+++ b/storage/perfschema/table_accounts.cc
@@ -43,8 +43,8 @@ table_accounts::m_share=
   sizeof(PFS_simple_index), /* ref length */
   &m_table_lock,
   { C_STRING_WITH_LEN("CREATE TABLE accounts("
-                      "USER CHAR(16) collate utf8_bin default null,"
-                      "HOST CHAR(60) collate utf8_bin default null,"
+                      "USER CHAR(" STRINGIFY_ARG(USERNAME_CHAR_LENGTH) ") collate utf8_bin default null,"
+                      "HOST CHAR(" STRINGIFY_ARG(HOSTNAME_LENGTH) ") collate utf8_bin default null,"
                       "CURRENT_CONNECTIONS bigint not null,"
                       "TOTAL_CONNECTIONS bigint not null)") }
 };
diff --git a/storage/perfschema/table_esgs_by_account_by_event_name.cc b/storage/perfschema/table_esgs_by_account_by_event_name.cc
index 22e4e0040f1..9a983eb076e 100644
--- a/storage/perfschema/table_esgs_by_account_by_event_name.cc
+++ b/storage/perfschema/table_esgs_by_account_by_event_name.cc
@@ -49,8 +49,8 @@ table_esgs_by_account_by_event_name::m_share=
   sizeof(pos_esgs_by_account_by_event_name),
   &m_table_lock,
   { C_STRING_WITH_LEN("CREATE TABLE events_stages_summary_by_account_by_event_name("
-                      "USER CHAR(16) collate utf8_bin default null,"
-                      "HOST CHAR(60) collate utf8_bin default null,"
+                      "USER CHAR(" STRINGIFY_ARG(USERNAME_CHAR_LENGTH) ") collate utf8_bin default null,"
+                      "HOST CHAR(" STRINGIFY_ARG(HOSTNAME_LENGTH) ") collate utf8_bin default null,"
                       "EVENT_NAME VARCHAR(128) not null,"
                       "COUNT_STAR BIGINT unsigned not null,"
                       "SUM_TIMER_WAIT BIGINT unsigned not null,"
diff --git a/storage/perfschema/table_esgs_by_host_by_event_name.cc b/storage/perfschema/table_esgs_by_host_by_event_name.cc
index 86cc2eb1b86..5ff9faf0c1e 100644
--- a/storage/perfschema/table_esgs_by_host_by_event_name.cc
+++ b/storage/perfschema/table_esgs_by_host_by_event_name.cc
@@ -50,7 +50,7 @@ table_esgs_by_host_by_event_name::m_share=
   sizeof(pos_esgs_by_host_by_event_name),
   &m_table_lock,
   { C_STRING_WITH_LEN("CREATE TABLE events_stages_summary_by_host_by_event_name("
-                      "HOST CHAR(60) collate utf8_bin default null,"
+                      "HOST CHAR(" STRINGIFY_ARG(HOSTNAME_LENGTH) ") collate utf8_bin default null,"
                       "EVENT_NAME VARCHAR(128) not null,"
                       "COUNT_STAR BIGINT unsigned not null,"
                       "SUM_TIMER_WAIT BIGINT unsigned not null,"
diff --git a/storage/perfschema/table_esgs_by_user_by_event_name.cc b/storage/perfschema/table_esgs_by_user_by_event_name.cc
index af73c1fc5fd..23b7b0f6689 100644
--- a/storage/perfschema/table_esgs_by_user_by_event_name.cc
+++ b/storage/perfschema/table_esgs_by_user_by_event_name.cc
@@ -50,7 +50,7 @@ table_esgs_by_user_by_event_name::m_share=
   sizeof(pos_esgs_by_user_by_event_name),
   &m_table_lock,
   { C_STRING_WITH_LEN("CREATE TABLE events_stages_summary_by_user_by_event_name("
-                      "USER CHAR(16) collate utf8_bin default null,"
+                      "USER CHAR(" STRINGIFY_ARG(USERNAME_CHAR_LENGTH) ") collate utf8_bin default null,"
                       "EVENT_NAME VARCHAR(128) not null,"
                       "COUNT_STAR BIGINT unsigned not null,"
                       "SUM_TIMER_WAIT BIGINT unsigned not null,"
diff --git a/storage/perfschema/table_esms_by_account_by_event_name.cc b/storage/perfschema/table_esms_by_account_by_event_name.cc
index 7afdabcbbfe..312050aa9c9 100644
--- a/storage/perfschema/table_esms_by_account_by_event_name.cc
+++ b/storage/perfschema/table_esms_by_account_by_event_name.cc
@@ -49,8 +49,8 @@ table_esms_by_account_by_event_name::m_share=
   sizeof(pos_esms_by_account_by_event_name),
   &m_table_lock,
   { C_STRING_WITH_LEN("CREATE TABLE events_statements_summary_by_account_by_event_name("
-                      "USER CHAR(16) collate utf8_bin default null,"
-                      "HOST CHAR(60) collate utf8_bin default null,"
+                      "USER CHAR(" STRINGIFY_ARG(USERNAME_CHAR_LENGTH) ") collate utf8_bin default null,"
+                      "HOST CHAR(" STRINGIFY_ARG(HOSTNAME_LENGTH) ") collate utf8_bin default null,"
                       "EVENT_NAME VARCHAR(128) not null,"
                       "COUNT_STAR BIGINT unsigned not null,"
                       "SUM_TIMER_WAIT BIGINT unsigned not null,"
diff --git a/storage/perfschema/table_esms_by_host_by_event_name.cc b/storage/perfschema/table_esms_by_host_by_event_name.cc
index 42629ab6c09..b390d1e17a4 100644
--- a/storage/perfschema/table_esms_by_host_by_event_name.cc
+++ b/storage/perfschema/table_esms_by_host_by_event_name.cc
@@ -50,7 +50,7 @@ table_esms_by_host_by_event_name::m_share=
   sizeof(pos_esms_by_host_by_event_name),
   &m_table_lock,
   { C_STRING_WITH_LEN("CREATE TABLE events_statements_summary_by_host_by_event_name("
-                      "HOST CHAR(60) collate utf8_bin default null,"
+                      "HOST CHAR(" STRINGIFY_ARG(HOSTNAME_LENGTH) ") collate utf8_bin default null,"
                       "EVENT_NAME VARCHAR(128) not null,"
                       "COUNT_STAR BIGINT unsigned not null,"
                       "SUM_TIMER_WAIT BIGINT unsigned not null,"
diff --git a/storage/perfschema/table_esms_by_user_by_event_name.cc b/storage/perfschema/table_esms_by_user_by_event_name.cc
index f8708ac9a14..1fa1289aa8c 100644
--- a/storage/perfschema/table_esms_by_user_by_event_name.cc
+++ b/storage/perfschema/table_esms_by_user_by_event_name.cc
@@ -50,7 +50,7 @@ table_esms_by_user_by_event_name::m_share=
   sizeof(pos_esms_by_user_by_event_name),
   &m_table_lock,
   { C_STRING_WITH_LEN("CREATE TABLE events_statements_summary_by_user_by_event_name("
-                      "USER CHAR(16) collate utf8_bin default null,"
+                      "USER CHAR(" STRINGIFY_ARG(USERNAME_CHAR_LENGTH) ") collate utf8_bin default null,"
                       "EVENT_NAME VARCHAR(128) not null,"
                       "COUNT_STAR BIGINT unsigned not null,"
                       "SUM_TIMER_WAIT BIGINT unsigned not null,"
diff --git a/storage/perfschema/table_ews_by_account_by_event_name.cc b/storage/perfschema/table_ews_by_account_by_event_name.cc
index fa6258ec9ac..40e0152f889 100644
--- a/storage/perfschema/table_ews_by_account_by_event_name.cc
+++ b/storage/perfschema/table_ews_by_account_by_event_name.cc
@@ -49,8 +49,8 @@ table_ews_by_account_by_event_name::m_share=
   sizeof(pos_ews_by_account_by_event_name),
   &m_table_lock,
   { C_STRING_WITH_LEN("CREATE TABLE events_waits_summary_by_account_by_event_name("
-                      "USER CHAR(16) collate utf8_bin default null,"
-                      "HOST CHAR(60) collate utf8_bin default null,"
+                      "USER CHAR(" STRINGIFY_ARG(USERNAME_CHAR_LENGTH) ") collate utf8_bin default null,"
+                      "HOST CHAR(" STRINGIFY_ARG(HOSTNAME_LENGTH) ") collate utf8_bin default null,"
                       "EVENT_NAME VARCHAR(128) not null,"
                       "COUNT_STAR BIGINT unsigned not null,"
                       "SUM_TIMER_WAIT BIGINT unsigned not null,"
diff --git a/storage/perfschema/table_ews_by_host_by_event_name.cc b/storage/perfschema/table_ews_by_host_by_event_name.cc
index e3ef7ca3720..d22d6fc8d79 100644
--- a/storage/perfschema/table_ews_by_host_by_event_name.cc
+++ b/storage/perfschema/table_ews_by_host_by_event_name.cc
@@ -50,7 +50,7 @@ table_ews_by_host_by_event_name::m_share=
   sizeof(pos_ews_by_host_by_event_name),
   &m_table_lock,
   { C_STRING_WITH_LEN("CREATE TABLE events_waits_summary_by_host_by_event_name("
-                      "HOST CHAR(60) collate utf8_bin default null,"
+                      "HOST CHAR(" STRINGIFY_ARG(HOSTNAME_LENGTH) ") collate utf8_bin default null,"
                       "EVENT_NAME VARCHAR(128) not null,"
                       "COUNT_STAR BIGINT unsigned not null,"
                       "SUM_TIMER_WAIT BIGINT unsigned not null,"
diff --git a/storage/perfschema/table_ews_by_user_by_event_name.cc b/storage/perfschema/table_ews_by_user_by_event_name.cc
index cb99f749a9c..b2f8e1da824 100644
--- a/storage/perfschema/table_ews_by_user_by_event_name.cc
+++ b/storage/perfschema/table_ews_by_user_by_event_name.cc
@@ -50,7 +50,7 @@ table_ews_by_user_by_event_name::m_share=
   sizeof(pos_ews_by_user_by_event_name),
   &m_table_lock,
   { C_STRING_WITH_LEN("CREATE TABLE events_waits_summary_by_user_by_event_name("
-                      "USER CHAR(16) collate utf8_bin default null,"
+                      "USER CHAR(" STRINGIFY_ARG(USERNAME_CHAR_LENGTH) ") collate utf8_bin default null,"
                       "EVENT_NAME VARCHAR(128) not null,"
                       "COUNT_STAR BIGINT unsigned not null,"
                       "SUM_TIMER_WAIT BIGINT unsigned not null,"
diff --git a/storage/perfschema/table_hosts.cc b/storage/perfschema/table_hosts.cc
index 8bc5310817c..221e0664590 100644
--- a/storage/perfschema/table_hosts.cc
+++ b/storage/perfschema/table_hosts.cc
@@ -44,7 +44,7 @@ table_hosts::m_share=
   sizeof(PFS_simple_index), /* ref length */
   &m_table_lock,
   { C_STRING_WITH_LEN("CREATE TABLE hosts("
-                      "HOST CHAR(60) collate utf8_bin default null,"
+                      "HOST CHAR(" STRINGIFY_ARG(HOSTNAME_LENGTH) ") collate utf8_bin default null,"
                       "CURRENT_CONNECTIONS bigint not null,"
                       "TOTAL_CONNECTIONS bigint not null)") }
 };
diff --git a/storage/perfschema/table_setup_actors.cc b/storage/perfschema/table_setup_actors.cc
index 305cfd32169..767a7e9e6f0 100644
--- a/storage/perfschema/table_setup_actors.cc
+++ b/storage/perfschema/table_setup_actors.cc
@@ -49,9 +49,9 @@ table_setup_actors::m_share=
   sizeof(PFS_simple_index),
   &m_table_lock,
   { C_STRING_WITH_LEN("CREATE TABLE setup_actors("
-                      "HOST CHAR(60) collate utf8_bin default '%' not null,"
-                      "USER CHAR(16) collate utf8_bin default '%' not null,"
-                      "ROLE CHAR(16) collate utf8_bin default '%' not null)") }
+                      "HOST CHAR(" STRINGIFY_ARG(HOSTNAME_LENGTH) ") collate utf8_bin default '%' not null,"
+                      "USER CHAR(" STRINGIFY_ARG(USERNAME_CHAR_LENGTH) ") collate utf8_bin default '%' not null,"
+                      "ROLE CHAR(" STRINGIFY_ARG(USERNAME_CHAR_LENGTH) ") collate utf8_bin default '%' not null)") }
 };
 
 PFS_engine_table* table_setup_actors::create()
diff --git a/storage/perfschema/table_threads.cc b/storage/perfschema/table_threads.cc
index eccf41db971..00196718113 100644
--- a/storage/perfschema/table_threads.cc
+++ b/storage/perfschema/table_threads.cc
@@ -46,8 +46,8 @@ table_threads::m_share=
                       "NAME VARCHAR(128) not null,"
                       "TYPE VARCHAR(10) not null,"
                       "PROCESSLIST_ID BIGINT unsigned,"
-                      "PROCESSLIST_USER VARCHAR(16),"
-                      "PROCESSLIST_HOST VARCHAR(60),"
+                      "PROCESSLIST_USER VARCHAR(" STRINGIFY_ARG(USERNAME_CHAR_LENGTH) "),"
+                      "PROCESSLIST_HOST VARCHAR(" STRINGIFY_ARG(HOSTNAME_LENGTH) "),"
                       "PROCESSLIST_DB VARCHAR(64),"
                       "PROCESSLIST_COMMAND VARCHAR(16),"
                       "PROCESSLIST_TIME BIGINT,"
diff --git a/storage/perfschema/table_users.cc b/storage/perfschema/table_users.cc
index 883ebd36633..e9592c55f55 100644
--- a/storage/perfschema/table_users.cc
+++ b/storage/perfschema/table_users.cc
@@ -44,7 +44,7 @@ table_users::m_share=
   sizeof(PFS_simple_index), /* ref length */
   &m_table_lock,
   { C_STRING_WITH_LEN("CREATE TABLE users("
-                      "USER CHAR(16) collate utf8_bin default null,"
+                      "USER CHAR(" STRINGIFY_ARG(USERNAME_CHAR_LENGTH) ") collate utf8_bin default null,"
                       "CURRENT_CONNECTIONS bigint not null,"
                       "TOTAL_CONNECTIONS bigint not null)") }
 };