s/innodb_default_encryption_key/innodb_default_encryption_key_id/

and make it a session variable, not global, as any decent
default sysvar for a table attribute should be

mysql-test/suite/innodb/r/innodb-page_encryption.result

@@ -7,7 +7,7 @@ create table innodb_dynamic(c1 bigint not null, b char(200)) engine=innodb row_f
 ERROR HY000: Can't create table `test`.`innodb_dynamic` (errno: 140 "Wrong create options")
 create table innodb_dynamic(c1 bigint not null, b char(200)) engine=innodb row_format=dynamic encryption='ON' encryption_key_id=33;
 create table innodb_redundant(c1 bigint not null, b char(200))  engine=innodb row_format=redundant encryption='ON' encryption_key_id=4;
-SET GLOBAL innodb_default_encryption_key = 5;
+set innodb_default_encryption_key_id = 5;
 create table innodb_defkey(c1  bigint not null, b char(200))  engine=innodb encryption='ON';
 show create table innodb_defkey;
 Table	Create Table

mysql-test/suite/innodb/t/innodb-page_encryption.test

@@ -4,7 +4,6 @@
 --disable_query_log
 let $innodb_file_format_orig = `SELECT @@innodb_file_format`;
 let $innodb_file_per_table_orig = `SELECT @@innodb_file_per_table`;
-let $default_encryption_key = `SELECT @@innodb_default_encryption_key`;
 --enable_query_log
 
 SET GLOBAL innodb_file_format = `Barracuda`;
@@ -18,7 +17,7 @@ create table innodb_dynamic(c1 bigint not null, b char(200)) engine=innodb row_f
 create table innodb_dynamic(c1 bigint not null, b char(200)) engine=innodb row_format=dynamic encryption='ON' encryption_key_id=33;
 create table innodb_redundant(c1 bigint not null, b char(200))  engine=innodb row_format=redundant encryption='ON' encryption_key_id=4;
 
-SET GLOBAL innodb_default_encryption_key = 5;
+set innodb_default_encryption_key_id = 5;
 create table innodb_defkey(c1  bigint not null, b char(200))  engine=innodb encryption='ON';
 show create table innodb_defkey;
 
@@ -162,5 +161,4 @@ drop table innodb_defkey;
 --disable_query_log
 EVAL SET GLOBAL innodb_file_per_table = $innodb_file_per_table_orig;
 EVAL SET GLOBAL innodb_file_format = $innodb_file_format_orig;
-EVAL SET GLOBAL innodb_default_encryption_key = $default_encryption_key;
 --enable_query_log

mysql-test/suite/sys_vars/r/all_vars.result

@@ -10,7 +10,7 @@ there should be *no* long test name listed below:
 select distinct variable_name as `there should be *no* variables listed below:` from t2
 left join t1 on variable_name=test_name where test_name is null;
 there should be *no* variables listed below:
-innodb_default_encryption_key
+innodb_default_encryption_key_id
 strict_password_validation
 drop table t1;
 drop table t2;

mysql-test/suite/sys_vars/r/innodb_default_page_encryption_key_basic.result

-SET @start_global_value = @@global.innodb_default_encryption_key;
-SELECT @start_global_value;
-@start_global_value
-1
-Valid value 0-9
-select @@global.innodb_default_encryption_key <= 9;
-@@global.innodb_default_encryption_key <= 9
-1
-select @@global.innodb_default_encryption_key;
-@@global.innodb_default_encryption_key
-1
-select @@session.innodb_default_encryption_key;
-ERROR HY000: Variable 'innodb_default_encryption_key' is a GLOBAL variable
-show global variables like 'innodb_default_encryption_key';
-Variable_name	Value
-innodb_default_encryption_key	1
-show session variables like 'innodb_default_encryption_key';
-Variable_name	Value
-innodb_default_encryption_key	1
-select * from information_schema.global_variables where variable_name='innodb_default_encryption_key';
-VARIABLE_NAME	VARIABLE_VALUE
-INNODB_DEFAULT_ENCRYPTION_KEY	1
-select * from information_schema.session_variables where variable_name='innodb_default_encryption_key';
-VARIABLE_NAME	VARIABLE_VALUE
-INNODB_DEFAULT_ENCRYPTION_KEY	1
-set global innodb_default_encryption_key=2;
-select @@global.innodb_default_encryption_key;
-@@global.innodb_default_encryption_key
-2
-select * from information_schema.global_variables where variable_name='innodb_default_encryption_key';
-VARIABLE_NAME	VARIABLE_VALUE
-INNODB_DEFAULT_ENCRYPTION_KEY	2
-select * from information_schema.session_variables where variable_name='innodb_default_encryption_key';
-VARIABLE_NAME	VARIABLE_VALUE
-INNODB_DEFAULT_ENCRYPTION_KEY	2
-set session innodb_default_encryption_key=4;
-ERROR HY000: Variable 'innodb_default_encryption_key' is a GLOBAL variable and should be set with SET GLOBAL
-set global innodb_default_encryption_key=1.1;
-ERROR 42000: Incorrect argument type to variable 'innodb_default_encryption_key'
-set global innodb_default_encryption_key=1e1;
-ERROR 42000: Incorrect argument type to variable 'innodb_default_encryption_key'
-set global innodb_default_encryption_key="foo";
-ERROR 42000: Incorrect argument type to variable 'innodb_default_encryption_key'
-set global innodb_default_encryption_key=10;
-select @@global.innodb_default_encryption_key;
-@@global.innodb_default_encryption_key
-10
-select * from information_schema.global_variables where variable_name='innodb_default_encryption_key';
-VARIABLE_NAME	VARIABLE_VALUE
-INNODB_DEFAULT_ENCRYPTION_KEY	10
-set global innodb_default_encryption_key=-7;
-Warnings:
-Warning	1292	Truncated incorrect innodb_default_encryption_key value: '-7'
-select @@global.innodb_default_encryption_key;
-@@global.innodb_default_encryption_key
-1
-select * from information_schema.global_variables where variable_name='innodb_default_encryption_key';
-VARIABLE_NAME	VARIABLE_VALUE
-INNODB_DEFAULT_ENCRYPTION_KEY	1
-set global innodb_default_encryption_key=1;
-select @@global.innodb_default_encryption_key;
-@@global.innodb_default_encryption_key
-1
-set global innodb_default_encryption_key=255;
-select @@global.innodb_default_encryption_key;
-@@global.innodb_default_encryption_key
-255
-SET @@global.innodb_default_encryption_key = @start_global_value;
-SELECT @@global.innodb_default_encryption_key;
-@@global.innodb_default_encryption_key
-1

mysql-test/suite/sys_vars/r/sysvars_innodb.result

@@ -579,12 +579,12 @@ NUMERIC_BLOCK_SIZE	NULL
 ENUM_VALUE_LIST	NULL
 READ_ONLY	NO
 COMMAND_LINE_ARGUMENT	REQUIRED
-VARIABLE_NAME	INNODB_DEFAULT_ENCRYPTION_KEY
-SESSION_VALUE	NULL
+VARIABLE_NAME	INNODB_DEFAULT_ENCRYPTION_KEY_ID
+SESSION_VALUE	1
 GLOBAL_VALUE	1
 GLOBAL_VALUE_ORIGIN	COMPILE-TIME
 DEFAULT_VALUE	1
-VARIABLE_SCOPE	GLOBAL
+VARIABLE_SCOPE	SESSION
 VARIABLE_TYPE	INT UNSIGNED
 VARIABLE_COMMENT	Default encryption key id used for table encryption.
 NUMERIC_MIN_VALUE	1

mysql-test/suite/sys_vars/t/innodb_default_page_encryption_key_basic.test

-
---source include/have_innodb.inc
-
-SET @start_global_value = @@global.innodb_default_encryption_key;
-SELECT @start_global_value;
-
-#
-# exists as global only
-#
---echo Valid value 0-9
-select @@global.innodb_default_encryption_key <= 9;
-select @@global.innodb_default_encryption_key;
---error ER_INCORRECT_GLOBAL_LOCAL_VAR
-select @@session.innodb_default_encryption_key;
-show global variables like 'innodb_default_encryption_key';
-show session variables like 'innodb_default_encryption_key';
-select * from information_schema.global_variables where variable_name='innodb_default_encryption_key';
-select * from information_schema.session_variables where variable_name='innodb_default_encryption_key';
-
-#
-# show that it's writable
-#
-set global innodb_default_encryption_key=2;
-select @@global.innodb_default_encryption_key;
-select * from information_schema.global_variables where variable_name='innodb_default_encryption_key';
-select * from information_schema.session_variables where variable_name='innodb_default_encryption_key';
---error ER_GLOBAL_VARIABLE
-set session innodb_default_encryption_key=4;
-
-#
-# incorrect types
-#
---error ER_WRONG_TYPE_FOR_VAR
-set global innodb_default_encryption_key=1.1;
---error ER_WRONG_TYPE_FOR_VAR
-set global innodb_default_encryption_key=1e1;
---error ER_WRONG_TYPE_FOR_VAR
-set global innodb_default_encryption_key="foo";
-
-set global innodb_default_encryption_key=10;
-select @@global.innodb_default_encryption_key;
-select * from information_schema.global_variables where variable_name='innodb_default_encryption_key';
-set global innodb_default_encryption_key=-7;
-select @@global.innodb_default_encryption_key;
-select * from information_schema.global_variables where variable_name='innodb_default_encryption_key';
-
-#
-# min/max values
-#
-set global innodb_default_encryption_key=1;
-select @@global.innodb_default_encryption_key;
-set global innodb_default_encryption_key=255;
-select @@global.innodb_default_encryption_key;
-
-#
-# cleanup
-#
-
-SET @@global.innodb_default_encryption_key = @start_global_value;
-SELECT @@global.innodb_default_encryption_key;

storage/innobase/handler/ha_innodb.cc

@@ -548,11 +548,9 @@ ib_cb_t innodb_api_cb[] = {
 	(ib_cb_t) ib_cursor_stmt_begin
 };
 
-static MYSQL_SYSVAR_UINT(default_encryption_key, srv_default_encryption_key,
-			 PLUGIN_VAR_RQCMDARG,
+static MYSQL_THDVAR_UINT(default_encryption_key_id, PLUGIN_VAR_RQCMDARG,
 			 "Default encryption key id used for table encryption.",
-			 NULL,
-			 NULL,
+			 NULL, NULL,
 			 FIL_DEFAULT_ENCRYPTION_KEY, 1, UINT_MAX32, 0);
 
 /**
@@ -576,7 +574,7 @@ ha_create_table_option innodb_table_option_list[]=
   /* With this option the user can enable encryption for the table */
   HA_TOPTION_ENUM("ENCRYPTION", encryption, "DEFAULT,ON,OFF", 0),
   /* With this option the user defines the key identifier using for the encryption */
-  HA_TOPTION_SYSVAR("ENCRYPTION_KEY_ID", encryption_key_id, default_encryption_key),
+  HA_TOPTION_SYSVAR("ENCRYPTION_KEY_ID", encryption_key_id, default_encryption_key_id),
 
   HA_TOPTION_END
 };
@@ -19417,8 +19415,7 @@ static struct st_mysql_sys_var* innobase_system_variables[]= {
   MYSQL_SYSVAR(scrub_log),
   MYSQL_SYSVAR(scrub_log_speed),
   MYSQL_SYSVAR(encrypt_log),
-  MYSQL_SYSVAR(default_encryption_key),
-
+  MYSQL_SYSVAR(default_encryption_key_id),
   /* Scrubing feature */
   MYSQL_SYSVAR(immediate_scrub_data_uncompressed),
   MYSQL_SYSVAR(background_scrub_data_uncompressed),

storage/innobase/include/srv0srv.h

@@ -560,9 +560,6 @@ that semaphore times out in InnoDB */
 #define DEFAULT_SRV_FATAL_SEMAPHORE_TIMEOUT 600
 extern ulong	srv_fatal_semaphore_wait_threshold;
 
-/** Default encryption key used for tablespace encryption */
-extern uint srv_default_encryption_key;
-
 /** Enable semaphore request instrumentation */
 extern my_bool srv_instrument_semaphores;
 

storage/innobase/srv/srv0srv.cc

@@ -523,9 +523,6 @@ thread ensures that we flush the log files at least once per
 second. */
 static time_t	srv_last_log_flush_time;
 
-/** Default encryption key used for tablespace encryption */
-UNIV_INTERN uint	srv_default_encryption_key = FIL_DEFAULT_ENCRYPTION_KEY;
-
 /** Enable semaphore request instrumentation */
 UNIV_INTERN my_bool 	srv_instrument_semaphores = FALSE;
 

storage/xtradb/handler/ha_innodb.cc

@@ -613,11 +613,9 @@ ib_cb_t innodb_api_cb[] = {
 	(ib_cb_t) ib_cursor_stmt_begin
 };
 
-static MYSQL_SYSVAR_UINT(default_encryption_key, srv_default_encryption_key,
-			 PLUGIN_VAR_RQCMDARG,
+static MYSQL_THDVAR_UINT(default_encryption_key_id, PLUGIN_VAR_RQCMDARG,
 			 "Default encryption key id used for table encryption.",
-			 NULL,
-			 NULL,
+			 NULL, NULL,
 			 FIL_DEFAULT_ENCRYPTION_KEY, 1, UINT_MAX32, 0);
 
 /**
@@ -641,7 +639,7 @@ ha_create_table_option innodb_table_option_list[]=
   /* With this option the user can enable encryption for the table */
   HA_TOPTION_ENUM("ENCRYPTION", encryption, "DEFAULT,ON,OFF", 0),
   /* With this option the user defines the key identifier using for the encryption */
-  HA_TOPTION_SYSVAR("ENCRYPTION_KEY_ID", encryption_key_id, default_encryption_key),
+  HA_TOPTION_SYSVAR("ENCRYPTION_KEY_ID", encryption_key_id, default_encryption_key_id),
 
   HA_TOPTION_END
 };
@@ -20638,7 +20636,7 @@ static struct st_mysql_sys_var* innobase_system_variables[]= {
   MYSQL_SYSVAR(scrub_log),
   MYSQL_SYSVAR(scrub_log_speed),
   MYSQL_SYSVAR(encrypt_log),
-  MYSQL_SYSVAR(default_encryption_key),
+  MYSQL_SYSVAR(default_encryption_key_id),
   /* Scrubing feature */
   MYSQL_SYSVAR(immediate_scrub_data_uncompressed),
   MYSQL_SYSVAR(background_scrub_data_uncompressed),

storage/xtradb/include/srv0srv.h

@@ -703,9 +703,6 @@ that semaphore times out in InnoDB */
 #define DEFAULT_SRV_FATAL_SEMAPHORE_TIMEOUT 600
 extern ulong	srv_fatal_semaphore_wait_threshold;
 
-/** Default encryption key used for tablespace encryption */
-extern uint srv_default_encryption_key;
-
 /** Enable semaphore request instrumentation */
 extern my_bool srv_instrument_semaphores;
 

storage/xtradb/srv/srv0srv.cc

@@ -670,9 +670,6 @@ thread ensures that we flush the log files at least once per
 second. */
 static time_t	srv_last_log_flush_time;
 
-/** Default encryption key used for tablespace encryption */
-UNIV_INTERN uint	srv_default_encryption_key = FIL_DEFAULT_ENCRYPTION_KEY;
-
 /** Enable semaphore request instrumentation */
 UNIV_INTERN my_bool 	srv_instrument_semaphores = FALSE;