APPROX_COUNT_DISTINCT (Lakehouse v2)

Devolve uma contagem aproximada de valores distintos com HyperLogLog.

Sintaxe do Analyze

func.approx_count_distinct(get_column(table, 'user_id'))

Exemplos do Analyze

func.approx_count_distinct(get_column(table, 'user_id'))

┌─────┐
│ 985 │
└─────┘

Sintaxe SQL

APPROX_COUNT_DISTINCT(<user_id>)

Exemplos de SQL

SELECT APPROX_COUNT_DISTINCT(user_id) FROM page_views;

┌─────┐
│ 985 │
└─────┘