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Sep 23, 2025
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best-practices: update wording (#20947) #20948

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best-practices: update wording
lilin90 Sep 23, 2025
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Update anchor link for invisible index section
lilin90 Sep 23, 2025
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4 changes: 2 additions & 2 deletions best-practices/index-management-best-practices.md
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Expand Up @@ -216,15 +216,15 @@ SELECT * FROM sys.schema_unused_indexes;

如果索引在重要但不频繁的查询中出现，建议先保留或设为不可见。

你可以使用[不可见索引](#使用不可见索引安全移除测试索引)来安全地验证某个索引是否可以删除，而不会影响系统性能。
你可以使用[不可见索引](#使用不可见索引安全测试索引移除)来安全地验证某个索引是否可以删除，而不会影响系统性能。

### 手动创建 `schema_unused_indexes` 视图

对于从较早版本升级到 TiDB v8.0.0 或更高版本的集群，需要手动创建系统 schema 及相关视图。

详见[手动创建 `schema_unused_indexes` 视图](/sys-schema/sys-schema-unused-indexes.md#手动创建-schema_unused_indexes-视图)。

## 使用不可见索引安全移除测试索引
## 使用不可见索引安全测试索引移除

在未经充分验证的情况下直接删除索引可能带来性能风险，尤其是那些虽不常用但对特定查询仍至关重要的索引。

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