proxysql

Commit Graph

Author	SHA1	Message	Date
René Cannaò	f7d8824379	Trying to work around MySQL bug 107875 Because of MySQL bug https://bugs.mysql.com/bug.php?id=107875 , autocommit=0 can "create a transaction" even if SERVER_STATUS_IN_TRANS is not set. This means that a SAVEPOINT can be created in a "transaction" created with autocommit=0 but without SERVER_STATUS_IN_TRANS . This commit takes also care of scenarios when autocommit=0 was switched back to autocommit=1 when a SELECT was executed while variable mysql-enforce_autocommit_on_reads was false. MySQL_Session::NumActiveTransactions() now accepts a flag to check for savepoints.	4 years ago

Author

SHA1

Message

Date

René Cannaò

f7d8824379

Trying to work around MySQL bug 107875

Because of MySQL bug https://bugs.mysql.com/bug.php?id=107875 ,
autocommit=0 can "create a transaction" even if SERVER_STATUS_IN_TRANS
is not set. This means that a SAVEPOINT can be created in a "transaction"
created with autocommit=0 but without SERVER_STATUS_IN_TRANS .
This commit takes also care of scenarios when autocommit=0 was switched back
to autocommit=1 when a SELECT was executed while variable
mysql-enforce_autocommit_on_reads was false.

MySQL_Session::NumActiveTransactions() now accepts a flag to check
for savepoints.

1 Commits (3843a54bede315ca4e2d0827539a9bc4bf40eeed)