f33b8793fd
This replaces some loops over word-length popcount functions with calls to pg_popcount(). Since pg_popcount() may use a function pointer for inputs with sizes >= a Bitmapset word, this produces a small regression for the common one-word case in bms_num_members(). To deal with that, this commit adds an inlined fast-path for that case. This fast-path could arguably go in pg_popcount() itself (with an appropriate alignment check), but that is left for future study. Suggested-by: John Naylor <johncnaylorls@gmail.com> Reviewed-by: John Naylor <johncnaylorls@gmail.com> Discussion: https://postgr.es/m/CANWCAZY7R%2Biy%2Br9YM_sySNydHzNqUirx1xk0tB3ej5HO62GdgQ%40mail.gmail.com
PostgreSQL Database Management System
This directory contains the source code distribution of the PostgreSQL database management system.
PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.