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This issue actually is about two different enhancements. One is substantial, one extremely small. Maybe more will be added in the context of this issue later.
1. Add PFISMEMBER for cardinality estimat…
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- HLL
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Hi Rockstars,
This is a list of proposed Hands-on tasks. If you're new to StarRocks and eager to engage with the community, here are some issues that are well-suited for you to dive into :) These …
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HyperLogLog has large error when the set cardinality is low. We may consider this
https://clickhouse.com/docs/en/sql-reference/aggregate-functions/reference/uniqcombined
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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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### Proposal
I would like to propose a new metric type: Distinct Count.
A distinct count records the number of unique things placed into a set. However, exact precision is not required for perf…
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https://redis.io/commands/pfcount
https://news.ycombinator.com/item?id=7506774
https://www.elastic.co/blog/count-elasticsearch
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I was curious to try out your gem, but I couldn't get it to build in either 1.9.2 or 1.9.3:
```
Building native extensions. This could take a while...
ERROR: Error installing hyperloglog:
ERROR: …
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I think in the function `hll::HyperLogLog::merge` it should not be the _bitwise or_ between the two registers:
```cpp
if (M_[r] < other.M_[r]) {
M_[r] |= other.M_[r];
}
```
Instead it sh…
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[database](https://github.com/peng-huang-ch/awesome-docker-compose?tab=readme-ov-file#database)
- [Redis](https://redis.io/docs/latest/) - Redis is in-memory data structure store, used as a databas…