DS_HLL_COMBINE
Combines multiple DataSketches HLL sketches into a single sketch.
Analyze Syntax
func.ds_hll_combine(get_column(table, 'hll_sketch'))
Analyze Examples
func.ds_hll_combine(get_column(table, 'hll_sketch'))
┌───────────────────┐
│ (combined sketch) │
└───────────────────┘
SQL Syntax
DS_HLL_COMBINE(<sketch_column>)
SQL Examples
SELECT DS_HLL_ESTIMATE(DS_HLL_COMBINE(sketch_col)) FROM daily_sketches;
┌───────┐
│ 25000 │
└───────┘