snowflake.snowpark.functions.approx_count_distinct¶ snowflake.snowpark.functions.approx_count_distinct(e: ColumnOrName) → Column[source]¶ Uses HyperLogLog to return an approximation of the distinct cardinality of the input (i.e. HLL(col1, col2, … ) returns an approximation of COUNT(DISTINCT col1, col2, … )).