Package: postgresql-12-hypopg Source: hypopg Version: 1.4.0-2.pgdg20.04+1 Architecture: amd64 Maintainer: Julien Rouhaud Installed-Size: 167 Depends: libc6 (>= 2.4), postgresql-12, postgresql-12-jit-llvm (>= 10) Homepage: https://hypopg.readthedocs.io/ Priority: optional Section: database Filename: pool/main/h/hypopg/postgresql-12-hypopg_1.4.0-2.pgdg20.04+1_amd64.deb Size: 70048 SHA256: e64017f3def12417a07bfa55089c11a1af68a2205f9798c18983bdad83f39521 SHA1: 36230f98d7729f26ddfcd61152723b767fa21a37 MD5sum: 1678f57c3a8cef89fa0682bfa4ff745e Description: PostgreSQL extension adding support for hypothetical indexes. An hypothetical, or virtual, index is an index that doesn't really exists, and thus doesn't cost CPU, disk or any resource to create. They're useful to know if specific indexes can increase performance for problematic queries, since you can know if PostgreSQL will use these indexes or not without having to spend resources to create them.