--- slug: /zh/sql-reference/aggregate-functions/reference/uniqcombined64 sidebar_position: 193 --- # uniqCombined64 {#agg_function-uniqcombined64} 和 [uniqCombined](../../../sql-reference/aggregate-functions/reference/uniqcombined.md#agg_function-uniqcombined)一样, 但对于所有数据类型使用64位哈希。