68 lines
2.5 KiB
SQL
68 lines
2.5 KiB
SQL
-- 性能优化索引脚本（简化版）
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-- 创建时间: 2025
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-- 描述: 为常用查询字段添加索引，提升查询性能
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-- 注意: 如果索引已存在会报错，可以忽略或手动删除重复的索引
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SET NAMES utf8mb4;
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-- =============================================
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-- 1. 部门表 (yz_tenant_departments) 索引优化
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-- =============================================
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-- 添加 tenant_id 索引
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CREATE INDEX IF NOT EXISTS idx_tenant_id ON yz_tenant_departments(tenant_id);
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-- 添加 delete_time 索引
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CREATE INDEX IF NOT EXISTS idx_delete_time ON yz_tenant_departments(delete_time);
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-- 添加复合索引 (tenant_id, delete_time) 用于常用查询
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CREATE INDEX IF NOT EXISTS idx_tenant_delete ON yz_tenant_departments(tenant_id, delete_time);
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-- 添加 parent_id 索引（用于树形结构查询）
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CREATE INDEX IF NOT EXISTS idx_parent_id ON yz_tenant_departments(parent_id);
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-- =============================================
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-- 2. 职位表 (yz_tenant_positions) 索引优化
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-- =============================================
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-- 添加 tenant_id 索引
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CREATE INDEX IF NOT EXISTS idx_tenant_id ON yz_tenant_positions(tenant_id);
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-- 添加 delete_time 索引
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CREATE INDEX IF NOT EXISTS idx_delete_time ON yz_tenant_positions(delete_time);
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-- 添加 department_id 索引（用于按部门查询职位）
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CREATE INDEX IF NOT EXISTS idx_department_id ON yz_tenant_positions(department_id);
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-- 添加复合索引 (department_id, delete_time, status) 用于常用查询
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CREATE INDEX IF NOT EXISTS idx_dept_delete_status ON yz_tenant_positions(department_id, delete_time, status);
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-- =============================================
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-- 3. 角色表 (yz_roles) 索引优化
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-- =============================================
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-- 添加 tenant_id 索引
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CREATE INDEX IF NOT EXISTS idx_tenant_id ON yz_roles(tenant_id);
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-- 添加 delete_time 索引
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CREATE INDEX IF NOT EXISTS idx_delete_time ON yz_roles(delete_time);
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-- =============================================
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-- 4. 员工表 (yz_employees) 索引优化
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-- =============================================
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-- 添加 tenant_id 索引
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CREATE INDEX IF NOT EXISTS idx_tenant_id ON yz_employees(tenant_id);
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-- 添加 delete_time 索引
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CREATE INDEX IF NOT EXISTS idx_delete_time ON yz_employees(delete_time);
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-- 添加 department_id 索引
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CREATE INDEX IF NOT EXISTS idx_department_id ON yz_employees(department_id);
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-- 添加 position_id 索引
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CREATE INDEX IF NOT EXISTS idx_position_id ON yz_employees(position_id);
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SELECT '性能优化索引创建完成！' AS message;
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