From fe07a94d3e871fb1d17cf2dea323c6ba9877cafb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pavel=20Czern=C3=BD?= <pczerny@opennebula.systems>
Date: Tue, 18 May 2021 18:49:08 +0200
Subject: [PATCH] B #5400: Fix PoolSQL::exist (#1224)

(cherry picked from commit 5267d9d712d167381674e16db34093f00f27c43c)
---
 src/pool/PoolSQL.cc | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/pool/PoolSQL.cc b/src/pool/PoolSQL.cc
index 0c796b1ef0..e2ba4a0e8e 100644
--- a/src/pool/PoolSQL.cc
+++ b/src/pool/PoolSQL.cc
@@ -158,7 +158,14 @@ void PoolSQL::exist(const string& id_str, std::set<int>& id_list)
     std::vector<int> existing_items;
 
     one_util::split_unique(id_str, ',', id_list);
-    search(existing_items, table.c_str(), "true order by 1 ASC");
+    if (Nebula::instance().get_db_backend() == "postgresql")
+    {
+        search(existing_items, table.c_str(), "true order by 1 ASC");
+    }
+    else
+    {
+        search(existing_items, table.c_str(), "1 order by 1 ASC");
+    }
 
     for (auto iterator = id_list.begin(); iterator != id_list.end();)
     {