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handler.cc:

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If the autocommit is on, let handler.cc commit or rollback the whole transaction at an updating SQL statement end. This probably fixes bug number 578. The problem was that when explicit LOCK TABLES is used, then the lock count method in autocommit does not work.


sql/handler.cc:
  If the autocommit is on, let handler.cc commit or rollback the whole transaction at an updating SQL statement end. This probably fixes bug number 578. The problem was that when explicit LOCK TABLES is used, then the lock count method in autocommit does not work.
This commit is contained in:
unknown 2003-06-04 17:58:41 +03:00
parent 6d3cf400d4
commit fb339587a5
1 changed files with 27 additions and 5 deletions
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32
sql/handler.cc
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@ -208,23 +208,45 @@ void ha_close_connection(THD* thd)
}
/*
This is used to commit or rollback a single statement depending
on the value of error
This is used to commit or rollback a single statement depending on the value
of error. If the autocommit is on, then we will commit or rollback the whole
transaction (= the statement). The autocommit mechanism built into handlers
is based on counting locks, but if the user has used LOCK TABLES then that
mechanism does not know to do the commit.
*/
int ha_autocommit_or_rollback(THD *thd, int error)
{
bool do_autocommit=FALSE;
DBUG_ENTER("ha_autocommit_or_rollback");
#ifdef USING_TRANSACTIONS
if (!(thd->options & (OPTION_NOT_AUTOCOMMIT | OPTION_BEGIN)))
do_autocommit=TRUE; /* We can commit or rollback the whole transaction */
if (opt_using_transactions)
{
if (!error)
{
if (ha_commit_stmt(thd))
error=1;
if (do_autocommit)
{
if (ha_commit(thd))
error=1;
}
else
{
if (ha_commit_stmt(thd))
error=1;
}
}
else
(void) ha_rollback_stmt(thd);
{
if (do_autocommit)
(void) ha_rollback(thd);
else
(void) ha_rollback_stmt(thd);
}
thd->variables.tx_isolation=thd->session_tx_isolation;
}