diff --git a/library/Icingadb/Common/IcingaRedis.php b/library/Icingadb/Common/IcingaRedis.php
index 0926814fd..319801291 100644
--- a/library/Icingadb/Common/IcingaRedis.php
+++ b/library/Icingadb/Common/IcingaRedis.php
@@ -152,10 +152,19 @@ protected function fetchState(string $key, array $ids, array $columns): Generato
             return;
         }
 
+        $desiredProperties = [];
+        foreach ($columns as $alias => $column) {
+            if (is_int($alias)) {
+                $desiredProperties[] = $column;
+            } else {
+                $desiredProperties[] = $alias;
+            }
+        }
+
         foreach ($results as $i => $json) {
             if ($json !== null) {
                 $data = json_decode($json, true);
-                $keyMap = array_fill_keys($columns, null);
+                $keyMap = array_fill_keys($desiredProperties, null);
                 unset($keyMap['is_overdue']); // Is calculated by Icinga DB, not Icinga 2, hence it's never in redis
 
                 // TODO: Remove once https://github.com/Icinga/icinga2/issues/9427 is fixed
diff --git a/library/Icingadb/Model/Host.php b/library/Icingadb/Model/Host.php
index 26e14287b..4820c9e57 100644
--- a/library/Icingadb/Model/Host.php
+++ b/library/Icingadb/Model/Host.php
@@ -5,6 +5,7 @@
 namespace Icinga\Module\Icingadb\Model;
 
 use Icinga\Module\Icingadb\Common\Auth;
+use Icinga\Module\Icingadb\Common\Backend;
 use Icinga\Module\Icingadb\Model\Behavior\BoolCast;
 use Icinga\Module\Icingadb\Model\Behavior\ReRoute;
 use ipl\Orm\Behavior\Binary;
@@ -13,6 +14,7 @@
 use ipl\Orm\Model;
 use ipl\Orm\Relations;
 use ipl\Orm\ResultSet;
+use ipl\Sql\Expression;
 
 /**
  * Host model.
@@ -74,7 +76,7 @@ public function getKeyName()
 
     public function getColumns()
     {
-        return [
+        $columns = [
             'environment_id',
             'name_checksum',
             'properties_checksum',
@@ -112,9 +114,15 @@ public function getColumns()
             'zone_name',
             'zone_id',
             'command_endpoint_name',
-            'command_endpoint_id',
-            'affected_children'
+            'command_endpoint_id'
         ];
+        if (Backend::getDbSchemaVersion() >= 6) {
+            $columns[] = 'affected_children';
+        } else {
+            $columns['affected_children'] = new Expression('0');
+        }
+
+        return $columns;
     }
 
     public function getColumnDefinitions()
diff --git a/library/Icingadb/Model/Service.php b/library/Icingadb/Model/Service.php
index 1568a0574..02f72cfd6 100644
--- a/library/Icingadb/Model/Service.php
+++ b/library/Icingadb/Model/Service.php
@@ -5,6 +5,7 @@
 namespace Icinga\Module\Icingadb\Model;
 
 use Icinga\Module\Icingadb\Common\Auth;
+use Icinga\Module\Icingadb\Common\Backend;
 use Icinga\Module\Icingadb\Model\Behavior\BoolCast;
 use Icinga\Module\Icingadb\Model\Behavior\HasProblematicParent;
 use Icinga\Module\Icingadb\Model\Behavior\ReRoute;
@@ -14,6 +15,7 @@
 use ipl\Orm\Model;
 use ipl\Orm\Relations;
 use ipl\Orm\ResultSet;
+use ipl\Sql\Expression;
 
 /**
  * @property string $id
@@ -70,7 +72,7 @@ public function getKeyName()
 
     public function getColumns()
     {
-        return [
+        $columns = [
             'environment_id',
             'name_checksum',
             'properties_checksum',
@@ -105,9 +107,16 @@ public function getColumns()
             'zone_name',
             'zone_id',
             'command_endpoint_name',
-            'command_endpoint_id',
-            'affected_children'
+            'command_endpoint_id'
         ];
+        if (Backend::getDbSchemaVersion() >= 6) {
+            $columns[] = 'affected_children';
+        } else {
+            $columns['has_problematic_parent'] = new Expression('0');
+            $columns['affected_children'] = new Expression('0');
+        }
+
+        return $columns;
     }
 
     public function getColumnDefinitions()
@@ -196,7 +205,9 @@ public function createBehaviors(Behaviors $behaviors)
             'command_endpoint_id'
         ]));
 
-        $behaviors->add(new HasProblematicParent());
+        if (Backend::getDbSchemaVersion() >= 6) {
+            $behaviors->add(new HasProblematicParent());
+        }
     }
 
     public function createDefaults(Defaults $defaults)
diff --git a/library/Icingadb/Model/State.php b/library/Icingadb/Model/State.php
index a4556c1d5..219ede2b2 100644
--- a/library/Icingadb/Model/State.php
+++ b/library/Icingadb/Model/State.php
@@ -5,12 +5,14 @@
 namespace Icinga\Module\Icingadb\Model;
 
 use DateTime;
+use Icinga\Module\Icingadb\Common\Backend;
 use Icinga\Module\Icingadb\Common\Icons;
 use Icinga\Module\Icingadb\Model\Behavior\BoolCast;
 use ipl\Orm\Behavior\Binary;
 use ipl\Orm\Behavior\MillisecondTimestamp;
 use ipl\Orm\Behaviors;
 use ipl\Orm\Model;
+use ipl\Sql\Expression;
 use ipl\Web\Widget\Icon;
 
 /**
@@ -68,7 +70,7 @@ abstract public function getStateTextTranslated(): string;
 
     public function getColumns()
     {
-        return [
+        $columns = [
             'environment_id',
             'state_type',
             'soft_state',
@@ -99,9 +101,15 @@ public function getColumns()
             'last_update',
             'last_state_change',
             'next_check',
-            'next_update',
-            'affects_children'
+            'next_update'
         ];
+        if (Backend::getDbSchemaVersion() >= 6) {
+            $columns[] = 'affects_children';
+        } else {
+            $columns['affects_children'] = new Expression("'n'");
+        }
+
+        return $columns;
     }
 
     public function createBehaviors(Behaviors $behaviors)
diff --git a/library/Icingadb/Widget/Detail/ObjectDetail.php b/library/Icingadb/Widget/Detail/ObjectDetail.php
index 064fb1f02..132b37e1c 100644
--- a/library/Icingadb/Widget/Detail/ObjectDetail.php
+++ b/library/Icingadb/Widget/Detail/ObjectDetail.php
@@ -14,6 +14,7 @@
 use Icinga\Date\DateFormatter;
 use Icinga\Exception\IcingaException;
 use Icinga\Module\Icingadb\Common\Auth;
+use Icinga\Module\Icingadb\Common\Backend;
 use Icinga\Module\Icingadb\Common\Database;
 use Icinga\Module\Icingadb\Common\HostLinks;
 use Icinga\Module\Icingadb\Common\Icons;
@@ -622,6 +623,7 @@ protected function createRootProblems(): ?array
         // host being down, only show its root problems if it's really caused by a dependency failure.
         if (
             $this->object->state->is_reachable
+            || Backend::getDbSchemaVersion() < 6
             || ($this->object instanceof Service && ! $this->object->has_problematic_parent)
         ) {
             return null;
@@ -669,7 +671,7 @@ protected function createRootProblems(): ?array
      */
     protected function createAffectedObjects(): ?array
     {
-        if (! $this->object->state->affects_children) {
+        if (! $this->object->state->affects_children || Backend::getDbSchemaVersion() < 6) {
             return null;
         }