DS_THETA_COUNT_DISTINCT (Lakehouse v2)

Returns an approximate distinct count using DataSketches Theta algorithm. Supports set operations like intersection and difference.

Analyze Syntax

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

Analyze Examples

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

┌───────┐
│ 10035 │
└───────┘

SQL Syntax

DS_THETA_COUNT_DISTINCT(<expr>)

SQL Examples

SELECT DS_THETA_COUNT_DISTINCT(user_id) FROM page_views;

┌───────┐
│ 10035 │
└───────┘