8ff5f824dc
This index array was originally defined to have 10000 entries (ranging up to FirstGenbkiObjectId), but we really only need entries up to the last existing builtin function OID, currently 6121. That saves close to 8K of never-accessed space in the server executable, at the small price of one more fetch in fmgr_isbuiltin(). We could reduce the array size still further by renumbering a few of the highest-numbered builtin functions; but there's a small risk of breaking clients that have chosen to hardwire those function OIDs, so it's not clear if it'd be worth the trouble. (We should, however, discourage future patches from choosing function OIDs above 6K as long as there's still lots of space below that.) Discussion: https://postgr.es/m/12359.1547063064@sss.pgh.pa.us
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. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.