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## Enhancement
Since StarRocks has already integrated with [DataSketches](https://datasketches.apache.org/) and supported [HLLSketch](https://github.com/StarRocks/starrocks/issues/20831), but we ca…
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When trying to build the javascript backend, the build process exits with following error:
```
/home/mai/projects/raku/nqp/nqp-m --module-path=/home/mai/projects/raku/nqp/gen/js/stage1 --target=mb…
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I would like to recommend HyperLogLog (HLL, or some of its useful variants, HLL++, LL beta) support as a native data type.
For a possible (Postgres) implementation see:
https://github.com/aggregatek…
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While hll_hash_timestamptz wouldn't be terribly useful, hll_hash_date certainly could be. And it shouldn't be hard to implement; you can transform a date to an INT. However, since the range of INTs …
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I think this wrapper function should be part of the standard HLL library, for doing ad-hoc cardinality estimates. It would be a wrapper for:
hll_cardinality(hll_add_agg(hll_hash_any(VALUE)))
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I have developed a framework that periodically produces several HLL entries using the [java-hll](https://github.com/aggregateknowledge/java-hll) library, and am looking for a way to insert them direct…
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Hi,
There is an example about using #hll_union_agg(users) OVER (ORDER BY date ASC ROWS 6 PRECEDING).
However if I try to use it with OVER(partition by date) it does not work: `ERROR: column "users" …
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HyperLogLog allows you to, in a fixed number of bits, keep track of the cardinality of a set. It works a little like a Bloom filter...
```
hll := NewHLL()
hll.Add("foo")
hll.Add("foo") // Duplicat…
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From https://trac.parrot.org/parrot/wiki/ParrotRoadmap.
Originally http://trac.parrot.org/parrot/ticket/566
coke updated
12 years ago
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In https://github.com/twitter/scalding/blob/develop/scalding-core/src/main/scala/com/twitter/scalding/ReduceOperations.scala#L94, it says that 10% error takes 256 bytes. But m=(104/error)^2=(104/10)^2…