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manually merged

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This commit is contained in:
serg@serg.mylan
2005-02-14 21:50:09 +01:00
parent 2b49bea59a db13afd89d
commit fd828e5b4d
84 changed files with 4343 additions and 3270 deletions
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20
sql/sql_base.cc
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@ -384,8 +384,8 @@ void close_thread_tables(THD *thd, bool lock_in_use, bool skip_derived,
{
TABLE *table, *next;
/*
Close all derived tables generated from questions like
SELECT * from (select * from t1))
Close all derived tables generated in queries like
SELECT * FROM (SELECT * FROM t1)
*/
for (table= thd->derived_tables ; table ; table= next)
{
@ -405,6 +405,18 @@ void close_thread_tables(THD *thd, bool lock_in_use, bool skip_derived,
mysql_unlock_tables(thd, thd->lock);
thd->lock=0;
}
/*
assume handlers auto-commit (if some doesn't - transaction handling
in MySQL should be redesigned to support it; it's a big change,
and it's not worth it - better to commit explicitly only writing
transactions, read-only ones should better take care of themselves.
saves some work in 2pc too)
see also sql_parse.cc - dispatch_command()
*/
bzero(&thd->transaction.stmt, sizeof(thd->transaction.stmt));
if (!thd->active_transaction())
thd->transaction.xid.null();
/* VOID(pthread_sigmask(SIG_SETMASK,&thd->block_signals,NULL)); */
if (!lock_in_use)
VOID(pthread_mutex_lock(&LOCK_open));
@ -1824,7 +1836,7 @@ TABLE *open_ltable(THD *thd, TABLE_LIST *table_list, thr_lock_type lock_type)
-1 - error
NOTE
The lock will automaticly be freed by close_thread_tables()
The lock will automaticaly be freed by close_thread_tables()
*/
int simple_open_n_lock_tables(THD *thd, TABLE_LIST *tables)
@ -1851,7 +1863,7 @@ int simple_open_n_lock_tables(THD *thd, TABLE_LIST *tables)
TRUE - error
NOTE
The lock will automaticly be freed by close_thread_tables()
The lock will automaticaly be freed by close_thread_tables()
*/
bool open_and_lock_tables(THD *thd, TABLE_LIST *tables)