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Bug#44151 using handler commands on information_schema tables crashes server

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information schema tables are based on internal tmp tables which are removed
after each statement execution. So HANDLER comands can not be used with
information schema.


mysql-test/r/handler.result:
  test result
mysql-test/t/handler.test:
  test case
sql/sql_handler.cc:
  information schema tables are based on internal tmp tables which are removed
  after each statement execution. So HANDLER comands can not be used with
  information schema.
This commit is contained in:
Sergey Glukhov
2009-04-17 12:41:15 +05:00
parent 5b05d360b0
commit ff923cc82d
3 changed files with 20 additions and 0 deletions
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8
sql/sql_handler.cc
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@ -190,6 +190,14 @@ bool mysql_ha_open(THD *thd, TABLE_LIST *tables, bool reopen)
tables->db, tables->table_name, tables->alias,
(int) reopen));
if (tables->schema_table)
{
my_error(ER_WRONG_USAGE, MYF(0), "HANDLER OPEN",
INFORMATION_SCHEMA_NAME.str);
DBUG_PRINT("exit",("ERROR"));
DBUG_RETURN(TRUE);
}
if (! hash_inited(&thd->handler_tables_hash))
{
/*