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byted-bytehouse-data-quality-inspector

ByteHouse 数据质量检查工具。当用户提供集群连接信息、数据库名和表名，需要检查排序键、主键和分区键所使用的列的空值、零值情况，是否存在异常分布，以及排序键、主键的重复情况时，使用此技能。适用于 "数据质量检查"、"排序键 / 主键 / 分区键分析"、"空值分析"、"零值分析"、"重复键检查"、"Top 分布" 等诉求。

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# ByteHouse 数据质量检查工具

## 描述

本 Skill 用于对 ByteHouse 表的关键键列（分区键、排序键、主键）进行快速数据质量分析，识别空值、零值、异常分布以及重复键等常见质量问题。

**当以下情况时使用此 Skill：**

1. 用户需要检查 ByteHouse 中某个表的数据质量。
2. 用户需要分析表的排序键、主键或分区键的空值、零值情况。
3. 用户想了解键列的数据分布情况（Top N 值及占比）。
4. 用户需要检查排序键 / 主键组合是否存在重复记录。
5. 用户提到 "数据质量"、"空值检查"、"零值检查"、"主键重复"、"排序键重复"、"分区键异常" 等关键词。