APPROX_COUNT_DISTINCT (Lakehouse v2)

Returns an approximate count of distinct values using HyperLogLog.

Analyze Syntax

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

Analyze Examples

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

┌─────┐
│ 985 │
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SQL Syntax

APPROX_COUNT_DISTINCT(<user_id>)

SQL Examples

SELECT APPROX_COUNT_DISTINCT(user_id) FROM page_views;

┌─────┐
│ 985 │
└─────┘