refactor: adjust database indexes by adding high-frequency composite indexes and removing redundant id indexes

app/db/__init__.py

@@ -15,10 +15,10 @@ def get_id_column():
     """
     if settings.DB_TYPE.lower() == "postgresql":
         # PostgreSQL使用SERIAL类型，让数据库自动处理序列
-        return Column(Integer, Identity(start=1, cycle=True), primary_key=True, index=True)
+        return Column(Integer, Identity(start=1, cycle=True), primary_key=True)
     else:
         # SQLite使用Sequence
-        return Column(Integer, Sequence('id'), primary_key=True, index=True)
+        return Column(Integer, Sequence('id'), primary_key=True)
 
 
 def _get_database_engine(is_async: bool = False):

app/db/models/downloadhistory.py

@@ -1,7 +1,7 @@
 import time
 from typing import List, Optional
 
-from sqlalchemy import Column, Integer, String, JSON, select, func
+from sqlalchemy import Column, Integer, String, JSON, Index, select, func
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy.orm import Session
 
@@ -35,7 +35,7 @@ class DownloadHistory(Base):
     # 下载器
     downloader = Column(String)
     # 下载任务Hash
-    download_hash = Column(String, index=True)
+    download_hash = Column(String)
     # 种子名称
     torrent_name = Column(String)
     # 种子描述
@@ -59,6 +59,11 @@ class DownloadHistory(Base):
     # 自定义识别词（用于整理时应用）
     custom_words = Column(String)
 
+    __table_args__ = (
+        Index('ix_downloadhistory_download_hash_date', 'download_hash', 'date'),
+        Index('ix_downloadhistory_date_id', 'date', 'id'),
+    )
+
     @classmethod
     @db_query
     def get_by_hash(cls, db: Session, download_hash: str):
@@ -373,9 +378,9 @@ class DownloadFiles(Base):
     # 下载器
     downloader = Column(String)
     # 下载任务Hash
-    download_hash = Column(String, index=True)
+    download_hash = Column(String)
     # 完整路径
-    fullpath = Column(String, index=True)
+    fullpath = Column(String)
     # 保存路径
     savepath = Column(String, index=True)
     # 文件相对路径/名称
@@ -385,6 +390,11 @@ class DownloadFiles(Base):
     # 状态 0-已删除 1-正常
     state = Column(Integer, nullable=False, default=1)
 
+    __table_args__ = (
+        Index('ix_downloadfiles_download_hash_state', 'download_hash', 'state'),
+        Index('ix_downloadfiles_fullpath_id', 'fullpath', 'id'),
+    )
+
     @classmethod
     @db_query
     def get_by_hash(cls, db: Session, download_hash: str, state: Optional[int] = None):

app/db/models/mediaserver.py

@@ -1,7 +1,7 @@
 from datetime import datetime
 from typing import Optional
 
-from sqlalchemy import Column, Integer, String, JSON
+from sqlalchemy import Column, Integer, String, JSON, Index
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy.orm import Session
@@ -29,7 +29,7 @@ class MediaServerItem(Base):
     # 年份
     year = Column(String)
     # TMDBID
-    tmdbid = Column(Integer, index=True)
+    tmdbid = Column(Integer)
     # IMDBID
     imdbid = Column(String, index=True)
     # TVDBID
@@ -43,6 +43,10 @@ class MediaServerItem(Base):
     # 同步时间
     lst_mod_date = Column(String, default=datetime.now().strftime("%Y-%m-%d %H:%M:%S"))
 
+    __table_args__ = (
+        Index('ix_mediaserveritem_tmdbid_item_type', 'tmdbid', 'item_type'),
+    )
+
     @classmethod
     @db_query
     def get_by_itemid(cls, db: Session, item_id: str):

app/db/models/message.py

@@ -1,6 +1,6 @@
 from typing import Optional
 
-from sqlalchemy import Column, Integer, String, JSON, select
+from sqlalchemy import Column, Integer, String, JSON, Index, select
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy.orm import Session
 
@@ -29,12 +29,16 @@ class Message(Base):
     # 用户ID
     userid = Column(String)
     # 登记时间
-    reg_time = Column(String, index=True)
+    reg_time = Column(String)
     # 消息方向：0-接收息，1-发送消息
     action = Column(Integer)
     # 附件json
     note = Column(JSON)
 
+    __table_args__ = (
+        Index('ix_message_reg_time_id', 'reg_time', 'id'),
+    )
+
     @classmethod
     @db_query
     def list_by_page(cls, db: Session, page: Optional[int] = 1, count: Optional[int] = 30):

app/db/models/plugindata.py

@@ -1,4 +1,4 @@
-from sqlalchemy import Column, String, JSON, select
+from sqlalchemy import Column, String, JSON, Index, select
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy.orm import Session
 
@@ -16,10 +16,14 @@ class PluginData(Base):
     插件数据表
     """
     id = get_id_column()
-    plugin_id = Column(String, nullable=False, index=True)
-    key = Column(String, index=True, nullable=False)
+    plugin_id = Column(String, nullable=False)
+    key = Column(String, nullable=False)
     value = Column(JSON)
 
+    __table_args__ = (
+        Index('ix_plugindata_plugin_id_key', 'plugin_id', 'key'),
+    )
+
     @classmethod
     @db_query
     def get_plugin_data(cls, db: Session, plugin_id: str):

app/db/models/siteuserdata.py

@@ -1,7 +1,7 @@
 from datetime import datetime
 from typing import Optional
 
-from sqlalchemy import Column, Integer, String, Float, JSON, func, or_, select
+from sqlalchemy import Column, Integer, String, Float, JSON, Index, func, or_, select
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy.orm import Session
 
@@ -14,7 +14,7 @@ class SiteUserData(Base):
     """
     id = get_id_column()
     # 站点域名
-    domain = Column(String, index=True)
+    domain = Column(String)
     # 站点名称
     name = Column(String)
     # 用户名
@@ -50,10 +50,15 @@ class SiteUserData(Base):
     # 错误信息
     err_msg = Column(String)
     # 更新日期
-    updated_day = Column(String, index=True, default=datetime.now().strftime('%Y-%m-%d'))
+    updated_day = Column(String, default=datetime.now().strftime('%Y-%m-%d'))
     # 更新时间
     updated_time = Column(String, default=datetime.now().strftime('%H:%M:%S'))
 
+    __table_args__ = (
+        Index('ix_siteuserdata_updated_day_id', 'updated_day', 'id'),
+        Index('ix_siteuserdata_domain_updated_day_updated_time', 'domain', 'updated_day', 'updated_time'),
+    )
+
     @classmethod
     @db_query
     def get_by_domain(cls, db: Session, domain: str, workdate: Optional[str] = None, worktime: Optional[str] = None):

app/db/models/subscribe.py

@@ -1,7 +1,7 @@
 import time
 from typing import Optional
 
-from sqlalchemy import Column, Integer, String, Float, JSON, select
+from sqlalchemy import Column, Integer, String, Float, JSON, Index, select
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy.orm import Session
 
@@ -64,7 +64,7 @@ class Subscribe(Base):
     # 创建时间
     date = Column(String)
     # 订阅用户
-    username = Column(String)
+    username = Column(String, index=True)
     # 订阅站点
     sites = Column(JSON, default=list)
     # 下载器
@@ -88,6 +88,10 @@ class Subscribe(Base):
     # 选择的剧集组
     episode_group = Column(String)
 
+    __table_args__ = (
+        Index('ix_subscribe_type_date', 'type', 'date'),
+    )
+
     @classmethod
     @db_query
     def exists(cls, db: Session, tmdbid: Optional[int] = None, doubanid: Optional[str] = None,

app/db/models/subscribehistory.py

@@ -1,6 +1,6 @@
 from typing import Optional
 
-from sqlalchemy import Column, Integer, String, Float, JSON, select
+from sqlalchemy import Column, Integer, String, Float, JSON, Index, select
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy.orm import Session
 
@@ -73,6 +73,10 @@ class SubscribeHistory(Base):
     # 剧集组
     episode_group = Column(String)
 
+    __table_args__ = (
+        Index('ix_subscribehistory_type_date', 'type', 'date'),
+    )
+
     @classmethod
     @db_query
     def list_by_type(cls, db: Session, mtype: str, page: Optional[int] = 1, count: Optional[int] = 30):

app/db/models/transferhistory.py

@@ -1,7 +1,7 @@
 import time
 from typing import Optional
 
-from sqlalchemy import Column, Integer, String, Boolean, func, or_, JSON, select
+from sqlalchemy import Column, Integer, String, Boolean, Index, func, or_, JSON, select
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy.orm import Session
 
@@ -54,12 +54,17 @@ class TransferHistory(Base):
     # 转移失败信息
     errmsg = Column(String)
     # 时间
-    date = Column(String, index=True)
+    date = Column(String)
     # 文件清单，以JSON存储
     files = Column(JSON, default=list)
     # 剧集组
     episode_group = Column(String)
 
+    __table_args__ = (
+        Index('ix_transferhistory_status_date', 'status', 'date'),
+        Index('ix_transferhistory_date_id', 'date', 'id'),
+    )
+
     @classmethod
     @db_query
     def list_by_title(cls, db: Session, title: str, page: Optional[int] = 1, count: Optional[int] = 30,

app/db/models/userconfig.py

@@ -1,4 +1,4 @@
-from sqlalchemy import Column, String, UniqueConstraint, Index, JSON
+from sqlalchemy import Column, String, UniqueConstraint, JSON
 from sqlalchemy.orm import Session
 
 from app.db import db_query, db_update, get_id_column, Base
@@ -10,7 +10,7 @@ class UserConfig(Base):
     """
     id = get_id_column()
     # 用户名
-    username = Column(String, index=True)
+    username = Column(String)
     # 配置键
     key = Column(String)
     # 值
@@ -19,7 +19,6 @@ class UserConfig(Base):
     __table_args__ = (
         # 用户名和配置键联合唯一
         UniqueConstraint('username', 'key'),
-        Index('ix_userconfig_username_key', 'username', 'key'),
     )
 
     @classmethod

app/db/models/workflow.py

@@ -1,7 +1,7 @@
 from datetime import datetime
 from typing import Optional
 
-from sqlalchemy import Column, Integer, JSON, String, and_, or_, select
+from sqlalchemy import Column, Integer, JSON, String, Index, and_, or_, select
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.db import Base, db_query, get_id_column, db_update, async_db_query, async_db_update
@@ -44,6 +44,10 @@ class Workflow(Base):
     # 最后执行时间
     last_time = Column(String)
 
+    __table_args__ = (
+        Index('ix_workflow_trigger_type_state', 'trigger_type', 'state'),
+    )
+
     @classmethod
     @db_query
     def list(cls, db):