Package: postgresql-17-hll Source: postgresql-hll Version: 2.18-2.pgdg20.04+1 Architecture: amd64 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 203 Depends: postgresql-17, postgresql-17-jit-llvm (>= 10), libc6 (>= 2.14) Homepage: https://github.com/citusdata/postgresql-hll Priority: optional Section: database Filename: pool/main/p/postgresql-hll/postgresql-17-hll_2.18-2.pgdg20.04+1_amd64.deb Size: 83812 SHA256: 5aef60e88bafd7059cab13fb6b922657db5c0c8f99612093f413bdb19f26339c SHA1: 63a70b92cd282e6ecd8165f77704b027f8bc4908 MD5sum: 38f8e32e8ae49b3bbbfb028aa4fd3826 Description: 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.