The database query isn't using indexes, causing a full table scan with poor performance.

数据库查询没有走索引，导致全表扫描性能很差。

同一单元的其他句子

• We need to conduct comprehensive regression testing before going live.我们需要在上线前进行全面的回归测试。
• This API's response time exceeds 500ms and needs performance optimization.这个接口的响应时间超过了500毫秒，需要做性能优化。
• I suggest using Redis as a caching layer to reduce database load.我建议用Redis做缓存层来减轻数据库的压力。
• The microservices architecture needs to address data consistency between services.微服务架构需要考虑服务间的数据一致性问题。
• The implementation plan for this feature needs to go through technical review before development.这个功能的实现方案需要经过技术评审才能开始开发。