update

app/api/endpoints/community.py

@@ -77,10 +77,7 @@ async def get_communities(
     if status:
         query = query.filter(CommunityDB.status == status)
     
-    # 获取总数（使用子查询优化计数操作）
-    from sqlalchemy import func
-    count_query = query.statement.with_only_columns([func.count()]).order_by(None)
-    total = db.execute(count_query).scalar()
+    total = query.count()
     
     # 查询数据
     communities = query.offset(skip).limit(limit).all()