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We will, for the foreseeable future, not expose 128 bit datatypes to SQL. But being able to use 128bit math will allow us, in a later patch, to use 128bit accumulators for some aggregates; leading to noticeable speedups over using numeric. So far we only detect a gcc/clang extension that supports 128bit math, but no 128bit literals, and no *printf support. We might want to expand this in the future to further compilers; if there are any that that provide similar support. Discussion: 544BB5F1.50709@proxel.se Author: Andreas Karlsson, with significant editorializing by me Reviewed-By: Peter Geoghegan, Oskari Saarenmaa
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: http://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 http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.