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BUG#4286 - HANDLER tables are closed by FLUSH TABLE(S).

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BUG#4335 - one name can be handler open'ed many times.
Reworked the HANDLER functions and interface.
Using a HASH to store information on open tables that
survives FLUSH TABLE.
HANDLER tables alias names must now be unique, though it
is allowed in 4.0 to qualify them with the database name
of the base table.
This commit is contained in:
ingo@mysql.com
2004-09-24 18:39:25 +02:00
parent 38f462ae6f
commit e47decfa7f
10 changed files with 999 additions and 317 deletions
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15
sql/sql_class.cc
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@ -78,9 +78,9 @@ extern "C" void free_user_var(user_var_entry *entry)
** Thread specific functions
****************************************************************************/
THD::THD():user_time(0),fatal_error(0),last_insert_id_used(0),
insert_id_used(0),rand_used(0),in_lock_tables(0),
global_read_lock(0),bootstrap(0)
THD::THD():user_time(0),global_read_lock(0),fatal_error(0),
last_insert_id_used(0),insert_id_used(0),rand_used(0),
in_lock_tables(0),bootstrap(0)
{
host=user=priv_user=db=query=ip=0;
host_or_ip= "connecting host";
@ -90,6 +90,7 @@ THD::THD():user_time(0),fatal_error(0),last_insert_id_used(0),
query_error=0;
next_insert_id=last_insert_id=0;
open_tables=temporary_tables=handler_tables=0;
hash_clear(&handler_tables_hash);
current_tablenr=0;
handler_items=0;
tmp_table=0;
@ -215,11 +216,9 @@ void THD::cleanup(void)
lock=locked_tables; locked_tables=0;
close_thread_tables(this);
}
if (handler_tables)
{
open_tables=handler_tables; handler_tables=0;
close_thread_tables(this);
}
mysql_ha_flush(this, (TABLE_LIST*) 0,
MYSQL_HA_CLOSE_FINAL | MYSQL_HA_FLUSH_ALL);
hash_free(&handler_tables_hash);
close_temporary_tables(this);
hash_free(&user_vars);
if (global_read_lock)