Package: postgresql-13-pg-hint-plan Source: pg-hint-plan-13 Version: 1.3.9-1.pgdg20.04+1 Architecture: amd64 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 347 Depends: postgresql-13, postgresql-13-jit-llvm (>= 10), libc6 (>= 2.14) Homepage: https://github.com/ossc-db/pg_hint_plan Priority: optional Section: database Filename: pool/main/p/pg-hint-plan-13/postgresql-13-pg-hint-plan_1.3.9-1.pgdg20.04+1_amd64.deb Size: 135012 SHA256: 5929da5234ad624106fe3d27bd29822140fa3ce13edf6002da0d13de8cb61f17 SHA1: f7d5b42e001cd456ff88e32479bce1f323b8be57 MD5sum: d4dd22a0a46fc48bfd5419d1bed64a04 Description: support for optimizer hints in PostgreSQL PostgreSQL uses a cost-based optimizer that uses data statistics, not static rules. The planner (optimizer) estimates costs of each possible execution plans for a SQL statement, then executes the plan with the lowest cost. The planner does its best to select the best execution plan, but it is far from perfect, since it may not count some data properties, like correlation between columns. . pg_hint_plan makes it possible to tweak PostgreSQL execution plans using so-called "hints" in SQL comments, like /*+ SeqScan(a) */.