From 5ad0c67485173724d1250aeb3bdc9e64976d14a4 Mon Sep 17 00:00:00 2001
From: Gunnar Beutner <gunnar@beutner.name>
Date: Wed, 28 Oct 2015 07:45:18 +0100
Subject: [PATCH] Fix: IDO tries to execute empty UPDATE queries

fixes #10473
---
 lib/db_ido_mysql/idomysqlconnection.cpp | 3 +++
 lib/db_ido_pgsql/idopgsqlconnection.cpp | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/lib/db_ido_mysql/idomysqlconnection.cpp b/lib/db_ido_mysql/idomysqlconnection.cpp
index a189220c2..237cf6f2e 100644
--- a/lib/db_ido_mysql/idomysqlconnection.cpp
+++ b/lib/db_ido_mysql/idomysqlconnection.cpp
@@ -805,6 +805,9 @@ void IdoMysqlConnection::InternalExecuteQuery(const DbQuery& query, DbQueryType
 	if (type == DbQueryInsert || type == DbQueryUpdate) {
 		std::ostringstream colbuf, valbuf;
 
+		if (type == DbQueryUpdate && query.Fields->GetLength() == 0)
+			return;
+
 		ObjectLock olock(query.Fields);
 
 		bool first = true;
diff --git a/lib/db_ido_pgsql/idopgsqlconnection.cpp b/lib/db_ido_pgsql/idopgsqlconnection.cpp
index 7866c1c1f..8c7a10487 100644
--- a/lib/db_ido_pgsql/idopgsqlconnection.cpp
+++ b/lib/db_ido_pgsql/idopgsqlconnection.cpp
@@ -684,6 +684,9 @@ void IdoPgsqlConnection::InternalExecuteQuery(const DbQuery& query, DbQueryType
 	if (type == DbQueryInsert || type == DbQueryUpdate) {
 		std::ostringstream colbuf, valbuf;
 
+		if (type == DbQueryUpdate && query.Fields->GetLength() == 0)
+			return;
+
 		ObjectLock olock(query.Fields);
 
 		Value value;