HLL_RAW_AGG (Lakehouse v2)
Aggregates HLL values into a single HLL value.
Analyze Syntax
Section titled “Analyze Syntax”func.hll_raw_agg(get_column(table, 'hll_col'))Analyze Examples
Section titled “Analyze Examples”func.hll_raw_agg(get_column(table, 'hll_col'))
┌─────────────┐│ (hll value) │└─────────────┘SQL Syntax
Section titled “SQL Syntax”HLL_RAW_AGG(<hll_col>)SQL Examples
Section titled “SQL Examples”SELECT HLL_CARDINALITY(HLL_RAW_AGG(hll_col)) FROM sketches;
┌──────┐│ 5000 │└──────┘