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SQL: disable engine change [fixes #358]

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This commit is contained in:
Aleksey Midenkov
2017-11-27 19:48:36 +03:00
parent ababd6a935
commit f9d875d212
4 changed files with 18 additions and 2 deletions
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2
mysql-test/suite/versioning/r/alter.result
View File

@ -22,6 +22,8 @@ t CREATE TABLE `t` (
) ENGINE=MyISAM DEFAULT CHARSET=latin1 WITH SYSTEM VERSIONING
alter table t add column y int;
ERROR HY000: Not allowed for versioned `test.t`. Change `versioning_alter_history` to proceed with ALTER.
alter table t engine innodb;
ERROR HY000: Not allowed for versioned `test.t`. Change to/from native versioning engine is prohibited.
alter table t drop system versioning;
show create table t;
Table Create Table

2
mysql-test/suite/versioning/t/alter.test
View File

@ -12,6 +12,8 @@ show create table t;
--error ER_VERS_ALTER_NOT_ALLOWED
alter table t add column y int;
--error ER_VERS_ALTER_ENGINE_PROHIBITED
alter table t engine innodb;
alter table t drop system versioning;
show create table t;

3
sql/share/errmsg-utf8.txt
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@ -7848,6 +7848,9 @@ WARN_VERS_PART_NON_HISTORICAL
ER_VERS_ALTER_NOT_ALLOWED
eng "Not allowed for versioned `%s.%s`. Change `versioning_alter_history` to proceed with ALTER."
ER_VERS_ALTER_ENGINE_PROHIBITED
eng "Not allowed for versioned `%s.%s`. Change to/from native versioning engine is prohibited."
ER_VERS_RANGE_PROHIBITED
eng "SYSTEM_TIME range selector is prohibited"

13
sql/sql_table.cc
View File

@ -8842,11 +8842,21 @@ bool mysql_alter_table(THD *thd, const char *new_db, const char *new_name,
bool error= open_tables(thd, &table_list, &tables_opened, 0,
&alter_prelocking_strategy);
thd->open_options&= ~HA_OPEN_FOR_ALTER;
bool versioned= table_list->table && table_list->table->versioned();
TABLE *table= table_list->table;
bool versioned= table && table->versioned();
bool vers_survival_mod= false;
if (versioned)
{
if (create_info->db_type &&
table->s->db_type() != create_info->db_type && (
table->file->native_versioned() ||
create_info->db_type->flags & HTON_NATIVE_SYS_VERSIONING))
{
my_error(ER_VERS_ALTER_ENGINE_PROHIBITED, MYF(0), table_list->db, table_list->table_name);
DBUG_RETURN(true);
}
bool vers_data_mod= alter_info->data_modifying();
if (thd->variables.vers_alter_history == VERS_ALTER_HISTORY_SURVIVE)
{
@ -8895,7 +8905,6 @@ bool mysql_alter_table(THD *thd, const char *new_db, const char *new_name,
if (error)
DBUG_RETURN(true);
TABLE *table= table_list->table;
table->use_all_columns();
MDL_ticket *mdl_ticket= table->mdl_ticket;