description |
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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.
DISTINCTCOUNTRAWHLLMV(colName, log2m)
These examples are based on the Hybrid Quick Start.
select DISTINCTCOUNTRAWHLLMV(DivAirports) AS value
from airlineStats
where arraylength(DivAirports) > 1
value |
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00000008000000ac00000000000000000000000500000020000000000030000202108000040000010000000300010400000000000000000000000463000000000000000000010001041000200000002000000000000000000a00000000028001000000010800000000010000001008000000804000000000020000040000880000000000000000000000000000000000000000000000800000000800020004000000840000000002000000000000000000001400 |
select DISTINCTCOUNTRAWHLLMV(DivAirports, 1) AS value
from airlineStats
where arraylength(DivAirports) > 1
value |
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0000000100000004000000e4 |