[ 源代码： postgresql-hll ]
软件包：postgresql-17-hll（2.18-2 以及其他的）
HyperLogLog extension for PostgreSQL
This PostgreSQL module introduces a new data type `hll` which is a HyperLogLog data structure. HyperLogLog is a fixed-size, set-like structure used for distinct value counting with tunable precision. For example, in 1280 bytes `hll` can estimate the count of tens of billions of distinct values with only a few percent error.
其他与 postgresql-17-hll 有关的软件包
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- dep: libc6 (>= 2.38)
- GNU C 语言运行库：共享库
同时作为一个虚包由这些包填实： libc6-udeb
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- dep: postgresql-17
- The World's Most Advanced Open Source Relational Database
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- dep: postgresql-17-jit-llvm (>= 16) [除 riscv64]
- 软件包暂时不可用