From 73b40b2db2ffc06347911f8136cb822117299d85 Mon Sep 17 00:00:00 2001
From: Sergei Predvoditelev <sergei@predvoditelev.ru>
Date: Thu, 18 Dec 2025 23:15:18 +0300
Subject: [PATCH 1/2] Fix "GROUP BY" builder ignoring parameters

---
 CHANGELOG.md            | 2 +-
 src/DQLQueryBuilder.php | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index bdd50be2..0ababe81 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 ## 2.0.1 under development
 
-- no changes in this release.
+- Bug #413: Fix "GROUP BY" builder ignoring parameters (@vjik)
 
 ## 2.0.0 December 05, 2025
 
diff --git a/src/DQLQueryBuilder.php b/src/DQLQueryBuilder.php
index d4ce9a68..b95c5f0d 100644
--- a/src/DQLQueryBuilder.php
+++ b/src/DQLQueryBuilder.php
@@ -45,7 +45,7 @@ public function build(QueryInterface $query, array $params = []): array
             $this->buildFrom($query->getFrom(), $params),
             $this->buildJoin($query->getJoins(), $params),
             $this->buildWhere($query->getWhere(), $params),
-            $this->buildGroupBy($query->getGroupBy()),
+            $this->buildGroupBy($query->getGroupBy(), $params),
             $this->buildHaving($query->getHaving(), $params),
             $this->buildFor($query->getFor()),
         ];

From 336b5caac70a3851bb6f07d0bdef1b010e69f50a Mon Sep 17 00:00:00 2001
From: Sergei Predvoditelev <sergei@predvoditelev.ru>
Date: Thu, 18 Dec 2025 23:24:55 +0300
Subject: [PATCH 2/2] fix

---
 src/DQLQueryBuilder.php | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/src/DQLQueryBuilder.php b/src/DQLQueryBuilder.php
index b95c5f0d..808b3a9c 100644
--- a/src/DQLQueryBuilder.php
+++ b/src/DQLQueryBuilder.php
@@ -62,16 +62,6 @@ public function build(QueryInterface $query, array $params = []): array
             }
         }
 
-        $groupBy = $query->getGroupBy();
-
-        if (!empty($groupBy)) {
-            foreach ($groupBy as $expression) {
-                if ($expression instanceof ExpressionInterface) {
-                    $this->buildExpression($expression, $params);
-                }
-            }
-        }
-
         $union = $this->buildUnion($query->getUnions(), $params);
 
         if ($union !== '') {