diff --git a/lib/db_ido/dbevents.cpp b/lib/db_ido/dbevents.cpp
index a763b65b5..514a65531 100644
--- a/lib/db_ido/dbevents.cpp
+++ b/lib/db_ido/dbevents.cpp
@@ -117,8 +117,6 @@ void DbEvents::NextCheckChangedHandler(const Checkable::Ptr& checkable)
 	else
 		query1.WhereCriteria->Set("host_object_id", host);
 
-	query1.WhereCriteria->Set("instance_id", 0); /* DbConnection class fills in real ID */
-
 	DbObject::OnQuery(query1);
 }
 
diff --git a/lib/db_ido_mysql/idomysqlconnection.cpp b/lib/db_ido_mysql/idomysqlconnection.cpp
index dca7df260..7ed9b1d6e 100644
--- a/lib/db_ido_mysql/idomysqlconnection.cpp
+++ b/lib/db_ido_mysql/idomysqlconnection.cpp
@@ -139,7 +139,7 @@ void IdoMysqlConnection::TxTimerHandler(void)
 void IdoMysqlConnection::NewTransaction(void)
 {
 	m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::InternalNewTransaction, this), PriorityHigh);
-	m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::FinishAsyncQueries, this, true), PriorityHigh);
+	m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::FinishAsyncQueries, this), PriorityHigh);
 }
 
 void IdoMysqlConnection::InternalNewTransaction(void)
@@ -405,18 +405,10 @@ void IdoMysqlConnection::AsyncQuery(const String& query, const boost::function<v
 	aq.Query = query;
 	aq.Callback = callback;
 	m_AsyncQueries.push_back(aq);
-
-	if (m_AsyncQueries.size() > 500)
-		FinishAsyncQueries(true);
-	else
-		m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::FinishAsyncQueries, this, false), PriorityLow);
 }
 
-void IdoMysqlConnection::FinishAsyncQueries(bool force)
+void IdoMysqlConnection::FinishAsyncQueries(void)
 {
-	if (m_AsyncQueries.size() < 10 && !force)
-		return;
-
 	std::vector<IdoAsyncQuery> queries;
 	m_AsyncQueries.swap(queries);
 
@@ -515,7 +507,7 @@ IdoMysqlResult IdoMysqlConnection::Query(const String& query)
 	AssertOnWorkQueue();
 
 	/* finish all async queries to maintain the right order for queries */
-	FinishAsyncQueries(true);
+	FinishAsyncQueries();
 
 	Log(LogDebug, "IdoMysqlConnection")
 	    << "Query: " << query;
diff --git a/lib/db_ido_mysql/idomysqlconnection.hpp b/lib/db_ido_mysql/idomysqlconnection.hpp
index 684c73b98..35c50ad0f 100644
--- a/lib/db_ido_mysql/idomysqlconnection.hpp
+++ b/lib/db_ido_mysql/idomysqlconnection.hpp
@@ -90,7 +90,7 @@ private:
 	void DiscardRows(const IdoMysqlResult& result);
 
 	void AsyncQuery(const String& query, const IdoAsyncCallback& callback = IdoAsyncCallback());
-	void FinishAsyncQueries(bool force = false);
+	void FinishAsyncQueries(void);
 
 	bool FieldToEscapedString(const String& key, const Value& value, Value *result);
 	void InternalActivateObject(const DbObject::Ptr& dbobj);