QueryColumnsProvider: Quote the reserved key of pgsql in function param

Author: sukhwinder33445

library/Icingadb/Data/QueryColumnsProvider.php

@@ -25,6 +25,7 @@
 use ipl\Orm\Relation\HasOne;
 use ipl\Orm\Resolver;
 use ipl\Orm\UnionModel;
+use ipl\Sql\Adapter\Pgsql;
 use ipl\Sql\Expression;
 use ipl\Sql\Select;
 use ipl\Stdlib\BaseFilter;
@@ -404,6 +405,11 @@ public function queryCustomvarConfig(Filter\Rule $filter): Select
             }
         }
 
+        $quotedUser = null;
+        if ($this->getDb()->getAdapter() instanceof Pgsql) {
+            $quotedUser = $this->getDb()->getAdapter()->quoteIdentifier('user');
+        }
+
         $scalarQueries = [];
         $aggregates = ['flatname'];
         foreach ($resolver->getRelations($customVars->getModel()) as $name => $relation) {
@@ -424,6 +430,10 @@ public function queryCustomvarConfig(Filter\Rule $filter): Select
                     );
                 }
 
+                if ($quotedUser && $name === 'user') {
+                    $name = $quotedUser;
+                }
+
                 $aggregates[$name] = new Expression("MAX($name)");
                 $scalarQueries[$name] = $select
                     ->resetColumns()->columns(new Expression('1'))
@@ -456,6 +466,10 @@ public function queryCustomvarConfig(Filter\Rule $filter): Select
             ->groupBy('flatname')
             ->limit(Suggestions::DEFAULT_LIMIT);
         foreach ($scalarQueries as $name => $_) {
+            if ($quotedUser && $name === 'user') {
+                $name = $quotedUser;
+            }
+
             $outerQuery->orHaving("MAX($name) = 1");
         }