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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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13
sql/sql_table.cc
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@ -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;