Package: postgresql-10-hypopg Source: hypopg Version: 1.4.1-2.pgdg20.04+1 Architecture: amd64 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 79 Depends: postgresql-10, libc6 (>= 2.4) Homepage: https://hypopg.readthedocs.io/ Priority: optional Section: database Filename: pool/main/h/hypopg/postgresql-10-hypopg_1.4.1-2.pgdg20.04+1_amd64.deb Size: 23344 SHA256: 53efd667cbf4e6480e645e5a56143b28b3163394f4e5cf8fe09afb65f55f1a20 SHA1: 1ade1bf77a6e8a98b909e9e41ac132420ee3e658 MD5sum: 32c3905499ebd75ff67054a4c98d230f 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.