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The fields that we consider public are "tupdesc" and "vals", which historically are in the middle of the struct. Move them to the front (this should be perfectly safe to do in HEAD) and add comments to make it quite clear which fields are public or not. Also adjust spi.sgml's documentation of the struct to match. That doc had bit-rotted somewhat, as it was missing some fields. (Arguably we should just remove all the private fields from the docs, but for now I refrained.) Daniel Gustafsson, reviewed by Fabien Coelho Discussion: https://postgr.es/m/0D19F836-B743-4340-B6A2-F148CA3DD1F0@yesql.se
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/.