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log.cc, handler.cc:

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Add BEGIN andd COMMIT around transactions in the binlog
This commit is contained in:
heikki@hundin.mysql.fi
2002-06-22 20:05:30 +03:00
parent a4b29743bc
commit 94e926acdf
2 changed files with 67 additions and 4 deletions
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31
sql/handler.cc
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@@ -251,6 +251,7 @@ int ha_autocommit_or_rollback(THD *thd, int error)
}
else
(void) ha_rollback_stmt(thd);
thd->tx_isolation=thd->session_tx_isolation;
}
#endif
@@ -309,6 +310,36 @@ int ha_commit_trans(THD *thd, THD_TRANS* trans)
if (trans == &thd->transaction.all && mysql_bin_log.is_open() &&
my_b_tell(&thd->transaction.trans_log))
{
/* We write the command "COMMIT" as the last SQL command in the
binlog segment cached for this transaction */
int save_query_length = thd->query_length;
thd->query_length = 6; /* length of 'COMMIT'; note that we may come
here because a DROP TABLE, for instance,
makes an implicit commit, and then
thd->query is not 'COMMIT'! */
Query_log_event qinfo(thd, "COMMIT", TRUE);
/* When we come here, and the user wrapped the transaction into
BEGIN and COMMIT, then qinfo got above the field cache_stmt
erroneously set to 0. Let us set it to 1: */
qinfo.cache_stmt = 1;
/* Write the 'COMMIT' entry to the cache */
if (mysql_bin_log.write(&qinfo)) {
my_error(ER_ERROR_DURING_COMMIT, MYF(0), 5000);
error=1;
}
thd->query_length = save_query_length;
/* Now we write the binlog segment cached for this transaction to
the real binlog */
mysql_bin_log.write(thd, &thd->transaction.trans_log);
reinit_io_cache(&thd->transaction.trans_log,
WRITE_CACHE, (my_off_t) 0, 0, 1);