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DISTINCTCOUNTRAWHLLMV

This section contains reference documentation for the DISTINCTCOUNTRAWHLLMV function.
Returns HLL response serialized as string. The serialized HLL can be converted back into an HLL and then aggregated with other HLLs. A common use case may be to merge HLL responses from different Pinot tables, or to allow aggregation after client-side batching.

Signature

DISTINCTCOUNTRAWHLLMV(colName, log2m)

Usage Examples

These examples are based on the Hybrid Quick Start.
select DISTINCTCOUNTRAWHLLMV(DivAirports) AS value
from airlineStats
where arraylength(DivAirports) > 1
value
00000008000000ac00000000000000000000000500000020000000000030000202108000040000010000000300010400000000000000000000000463000000000000000000010001041000200000002000000000000000000a00000000028001000000010800000000010000001008000000804000000000020000040000880000000000000000000000000000000000000000000000800000000800020004000000840000000002000000000000000000001400
select DISTINCTCOUNTRAWHLLMV(DivAirports, 1) AS value
from airlineStats
where arraylength(DivAirports) > 1
value
0000000100000004000000e4