Package: postgresql-13-tdigest Source: tdigest Version: 1.4.1-2.pgdg20.04+1 Architecture: amd64 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 155 Depends: postgresql-13, postgresql-13-jit-llvm (>= 10), libc6 (>= 2.14) Homepage: https://github.com/tvondra/tdigest Priority: optional Section: database Filename: pool/main/t/tdigest/postgresql-13-tdigest_1.4.1-2.pgdg20.04+1_amd64.deb Size: 59528 SHA256: d6684d31e281dde5d99356cb000bc1912481e48fbfc9a0a89224177d6764ed21 SHA1: 2ed8d1d6ba5c6cc4e20329ab49bf6452128dfdf5 MD5sum: 0b8b28a93999885be372de554a1c968d Description: t-digest algorithm for on-line accumulation of rank-based statistics This PostgreSQL extension implements t-digest, a data structure for on-line accumulation of rank-based statistics such as quantiles and trimmed means. The algorithm is also very friendly to parallel programs. . The accuracy of estimates produced by t-digests can be orders of magnitude more accurate than those produced by previous digest algorithms in spite of the fact that t-digests are much more compact when stored on disk.