wording: don't prohibit

mysql-test/suite/versioning/r/alter.result

@@ -20,7 +20,7 @@ t	CREATE TABLE `t` (
 alter table t add column y int;
 ERROR HY000: Not allowed for system-versioned `test`.`t`. Change @@system_versioning_alter_history to proceed with ALTER.
 alter table t engine innodb;
-ERROR HY000: Not allowed for system-versioned `test`.`t`. Change to/from native system versioning engine is prohibited.
+ERROR HY000: Not allowed for system-versioned `test`.`t`. Change to/from native system versioning engine is not supported.
 alter table t drop system versioning;
 show create table t;
 Table	Create Table
@@ -440,11 +440,11 @@ alter table t1 engine=myisam;
 # MDEV-14692 crash in MDL_context::upgrade_shared_lock()
 create or replace temporary table t (a int);
 alter table t change column if exists b c bigint unsigned generated always as row start;
-ERROR HY000: System versioning prohibited for TEMPORARY tables
+ERROR HY000: TEMPORARY tables do not support system versioning
 alter table t change column if exists b c bigint unsigned generated always as row end;
-ERROR HY000: System versioning prohibited for TEMPORARY tables
+ERROR HY000: TEMPORARY tables do not support system versioning
 alter table t add system versioning;
-ERROR HY000: System versioning prohibited for TEMPORARY tables
+ERROR HY000: TEMPORARY tables do not support system versioning
 drop table t;
 # MDEV-14744 trx_id-based and transaction-based mixup in assertion
 create or replace table t (c text) engine=innodb with system versioning;

mysql-test/suite/versioning/r/create.result

@@ -403,7 +403,7 @@ t3	CREATE TABLE `t3` (
 ) ENGINE=NON_DEFAULT_ENGINE DEFAULT CHARSET=latin1 WITH SYSTEM VERSIONING
 ## Errors
 create or replace temporary table t (x28 int) with system versioning;
-ERROR HY000: System versioning prohibited for TEMPORARY tables
+ERROR HY000: TEMPORARY tables do not support system versioning
 create or replace table t1 (
 x29 int unsigned,
 Sys_start0 timestamp(6) as row start invisible,

mysql-test/suite/versioning/r/debug.result

@@ -5,7 +5,7 @@ t1	CREATE TABLE `t1` (
   `a` int(11) DEFAULT NULL
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1
 create temporary table tt1 (a int) with system versioning;
-ERROR HY000: System versioning prohibited for TEMPORARY tables
+ERROR HY000: TEMPORARY tables do not support system versioning
 set @old_dbug=@@global.debug_dbug;
 set global debug_dbug='+d,sysvers_force';
 create table t2 (a int);

mysql-test/suite/versioning/r/partition.result

@@ -36,7 +36,7 @@ x
 # Engine change native <-> non-native versioning prohibited
 create or replace table t1 (i int) engine=DEFAULT_ENGINE with system versioning partition by hash(i);
 alter table t1 engine=NON_DEFAULT_ENGINE;
-ERROR HY000: Not allowed for system-versioned `test`.`t1`. Change to/from native system versioning engine is prohibited.
+ERROR HY000: Not allowed for system-versioned `test`.`t1`. Change to/from native system versioning engine is not supported.
 ## CREATE TABLE
 create or replace table t1 (x int)
 partition by system_time (

sql/share/errmsg-utf8.txt

@@ -7854,10 +7854,10 @@ ER_VERS_ALTER_NOT_ALLOWED
         eng "Not allowed for system-versioned %`s.%`s. Change @@system_versioning_alter_history to proceed with ALTER."
 
 ER_VERS_ALTER_ENGINE_PROHIBITED
-        eng "Not allowed for system-versioned %`s.%`s. Change to/from native system versioning engine is prohibited."
+        eng "Not allowed for system-versioned %`s.%`s. Change to/from native system versioning engine is not supported."
 
 ER_VERS_RANGE_PROHIBITED
-        eng "SYSTEM_TIME range selector is prohibited"
+        eng "SYSTEM_TIME range selector is not allowed"
 
 ER_UNUSED_26
         eng "You should never see it"
@@ -7905,7 +7905,7 @@ ER_UNUSED_24
 	eng "You should never see it"
 
 ER_VERS_TEMPORARY
-	eng "System versioning prohibited for TEMPORARY tables"
+	eng "TEMPORARY tables do not support system versioning"
 
 ER_VERS_NOT_SUPPORTED
         eng "%s is not supported for %s system-versioned tables"