---

{ “title”: “HLL_HASH”, “language”: “en” }

Description

Converts a given value to the HLL (HyperLogLog) type. This function is typically used during data loading to create an HLL from raw data.

Syntax

HLL_HASH(<value>)

Parameters

Parameter	Description
<value>	The value to be converted to HLL type. This can be a string, number, or any data type.

Examples

SELECT HLL_CARDINALITY(HLL_HASH('abc'));

+----------------------------------+
| hll_cardinality(HLL_HASH('abc')) |
+----------------------------------+
|                                1 |
+----------------------------------+