Package: postgresql-12-hypopg Source: hypopg Version: 1.3.1-2.pgdg18.04+1 Architecture: i386 Maintainer: Julien Rouhaud Installed-Size: 147 Depends: postgresql-12, libc6 (>= 2.4) Homepage: https://hypopg.readthedocs.io/ Priority: optional Section: database Filename: pool/main/h/hypopg/postgresql-12-hypopg_1.3.1-2.pgdg18.04+1_i386.deb Size: 65524 SHA256: e06645b53deca0439d3ddc4206fb2916e0bfb063db47042f1034b3ca5939dd06 SHA1: 091427b61f56e5c6ef1565ececc1bb313533ed03 MD5sum: e1050f0e0f3e710d6f6d375743414d4f 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.