Package: postgresql-12-hll Source: postgresql-hll Version: 2.18-2.pgdg20.04+1 Architecture: amd64 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 202 Depends: postgresql-12, postgresql-12-jit-llvm (>= 10), libc6 (>= 2.14) Homepage: https://github.com/citusdata/postgresql-hll Priority: optional Section: database Filename: pool/main/p/postgresql-hll/postgresql-12-hll_2.18-2.pgdg20.04+1_amd64.deb Size: 83576 SHA256: bcc5a3da015d4f68d05d2b2de757a58a6cf547a0f535db18df990f833277a88d SHA1: d76f6ccf68d1ccc7e63b76b86e94636b509551a6 MD5sum: a8bf53bfe0c0e27ff11c7602fa68155d 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.