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[ 源代码： postgresql-hll ]
软件包：postgresql-11-hll（2.12-3）
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-11-hll 有关的软件包
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- dep: libc6 (>= 2.14) [amd64]
- 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
- dep: libc6 (>= 2.17) [arm64]
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- dep: postgresql-11
- object-relational SQL database, version 11 server