hll_cardinality
Description
Calculates the cardinality of a single HLL type value.
Syntax
HLL_CARDINALITY(hll)
Examples
MySQL > select HLL_CARDINALITY(uv_set) from test_uv;
+---------------------------+
| hll_cardinality(`uv_set`) |
+---------------------------+
| 3 |
+---------------------------+
keyword
HLL,HLL_CARDINALITY