perf(management): message补无渠道前缀索引——修驾驶舱channel=all超时34s→1.3s

该回未回决赛圈点查(owner+talker定位末条消息)在channel=None时无渠道
前缀条件,现有索引全以channel打头用不上,服务器100万行实测dashboard
34~37s撞前端15s超时(ECONNABORTED);补(owner,talker,timestamp)索引
后实测1.3~1.8s。服务器已先行手工建索引止血,本迁移幂等兜底对齐。
模型+迁移双声明防autogenerate反DROP

yunke-server/app/api/routers/groups.py

@@ -102,18 +102,22 @@ async def list_groups(
     if conditions:
         list_stmt = list_stmt.where(*conditions)
     if (channel or "wechat") == "wechat":
-        # 云客「微信群统计」同款排序(2026-09-10 真机判别):员工分组——
+        # 云客「微信群统计」同款排序(2026-09-10 真机终判):owner_account_id
-        # 按云客员工列表序(wechat_account.list_order,NULL 垫底按 wx_id)、
+        # (=微信号/wxid 混存,如 Nancyjade < csf7169708 < wxid_01gv…——大写
-        # 组内按 room_id(chatRoomId)字符串升序。WA 保持最近活跃优先。
+        # 在小写前=区分大小写)**二进制字节序升序**分组,组内 room_id 字符串
+        # 升序。字节序按方言:MySQL 用 CAST(col AS BINARY)(collate("BINARY")
+        # 会被 SQLAlchemy 反引号成标识符);SQLite 用 COLLATE BINARY(其 CAST
+        # AS BINARY 语义不符)。WA 保持最近活跃优先。
+        dialect = session.bind.dialect.name if session.bind is not None else ""
+        if dialect == "mysql":
+            owner_order = sa.literal_column(
+                "CAST(chat_group.owner_account_id AS BINARY)"
+            ).asc()
+        else:
+            owner_order = ChatGroup.owner_account_id.collate("BINARY").asc()
         list_stmt = (
-            list_stmt.outerjoin(
+            list_stmt.order_by(
-                WechatAccount,
+                owner_order,
-                WechatAccount.wx_id == ChatGroup.owner_account_id,
-            )
-            .order_by(
-                WechatAccount.list_order.is_(None),
-                WechatAccount.list_order.asc(),
-                ChatGroup.owner_account_id.asc(),
                 ChatGroup.room_id.asc(),
             )
             .limit(page_size)

yunke-server/app/db/models.py

@@ -537,6 +537,18 @@ class Message(Base):
             "ix_message_fetched_at",
             "fetched_at",
         ),
+        # 该回未回决赛圈点查(owner+talker 定位末条消息)在 channel=None
+        # (全平台计数——管理驾驶舱 action_counts 复用)时无渠道前缀条件,
+        # 上面全部以 channel 打头的索引用不上,逐候选退化扫表+filesort:
+        # 2026-09-10 服务器实测 dashboard 34~37s 撞前端 15s 超时
+        # (ECONNABORTED);补无渠道前缀索引后 1.3~1.8s(100 万行在线建
+        # 索引 49s)。「模型+迁移双声明」防 alembic autogenerate 反 DROP。
+        Index(
+            "ix_message_owner_talker_time",
+            "owner_account_id",
+            "talker_id",
+            "timestamp",
+        ),
     )
 
 

yunke-server/migrations/versions/d8e9f0a1b2c3_message_owner_talker_time_index.py

@@ -0,0 +1,41 @@
+"""message 补无渠道前缀索引 (owner_account_id, talker_id, timestamp)
+
+Revision ID: d8e9f0a1b2c3
+Revises: c9d0e1f2a3b4
+Create Date: 2026-09-10
+
+背景:该回未回决赛圈点查在 channel=None(管理驾驶舱 action_counts)时
+无渠道前缀条件,现有索引全部以 channel 打头用不上——服务器 100 万行
+实测 dashboard 34~37s 撞前端 15s 超时;索引落地后 1.3~1.8s。
+幂等:sa.inspect 先查,存在即跳过(服务器已先行手工建同名索引,本迁移
+兜底对齐 schema 版本)。「模型+迁移双声明」防 autogenerate 反 DROP。
+"""
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "d8e9f0a1b2c3"
+down_revision: str | Sequence[str] | None = "c9d0e1f2a3b4"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+_IDX = "ix_message_owner_talker_time"
+
+
+def _has_index(bind) -> bool:
+    insp = sa.inspect(bind)
+    if not insp.has_table("message"):
+        return False
+    return _IDX in {ix["name"] for ix in insp.get_indexes("message")}
+
+
+def upgrade() -> None:
+    if not _has_index(op.get_bind()):
+        op.create_index(_IDX, "message",
+                         ["owner_account_id", "talker_id", "timestamp"])
+
+
+def downgrade() -> None:
+    if _has_index(op.get_bind()):
+        op.drop_index(_IDX, table_name="message")

yunke-server/tests/test_api_groups.py

@@ -64,10 +64,9 @@ async def _seed(session: AsyncSession) -> None:
 
 
 async def test_default_list_returns_all_ordered_desc(make_client):
-    """No filters -> 3 groups;微信排序=员工分组(list_order NULL 按 owner asc)
+    """No filters -> 3 groups;微信排序=owner 二进制字符串升序分组+room_id
-    +组内 room_id 字符串升序(云客群统计同款,2026-09-10)。
+    升序(云客群统计同款,2026-09-10 终判:区分大小写,大写排小写前)。
-    seed 无 wechat_account 行 → list_order 全 NULL → owner 字符串序:
+    owner 序:wa_owner_1 < wx_owner_1 < wx_owner_2 → [wa_room_x, room_a, room_b]。
-    wa_owner_1 < wx_owner_1 < wx_owner_2 → [wa_room_x, room_a, room_b]。
     """
     client = await make_client(_seed)
     r = await client.get("/api/groups")