Package: postgresql-13-hypopg Source: hypopg Version: 1.4.2-1.pgdg20.04+1 Architecture: amd64 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 178 Depends: postgresql-13, postgresql-13-jit-llvm (>= 10), libc6 (>= 2.4) Homepage: https://hypopg.readthedocs.io/ Priority: optional Section: database Filename: pool/main/h/hypopg/postgresql-13-hypopg_1.4.2-1.pgdg20.04+1_amd64.deb Size: 71180 SHA256: a4a56a3dce814c96216718f7d2a9373bb02e71de7a3e92601330d3b4b3c13332 SHA1: 238275ceede39c9989a988780b270f6bf32192f6 MD5sum: 256afc12e6533b2b67ff21f376eb648d 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.