rollup()

Roll up multiple hyperloglogs

Since 1.3.0

Combine multiple intermediate hyperloglog aggregates, produced by hyperloglog, into a single intermediate hyperloglog aggregate. For example, you can use rollup to combine hyperloglog from 15-minute buckets into daily buckets.

Arguments

The syntax is:

rollup(
  hyperloglog Hyperloglog
) RETURNS Hyperloglog

Name	Type	Default	Required	Description
hyperloglog	Hyperloglog	-	✔	The hyperloglog aggregates to roll up.

Returns

Column	Type	Description
rollup	Hyperloglog	A new hyperloglog aggregate created by combining the input hyperloglog aggregates.