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Heikki Linnakangas 0099b9408e Convert confusing macros in multixact.c to static inline functions
The macros were confused about the argument data types. All the
arguments were called 'xid', and some of the macros included casts to
TransactionId, even though the arguments were actually either
MultiXactIds or MultiXactOffsets. It compiles to the same thing,
because TransactionId, MultiXactId and MultiXactOffset are all
typedefs of uint32, but it was highly misleading.

Author: Maxim Orlov <orlovmg@gmail.com>
Discussion: https://www.postgresql.org/message-id/CACG%3DezbLUG-OD1osAW3OchOMxZtdxHh2itYR9Zhh-a13wEBEQw%40mail.gmail.com
Discussion: https://www.postgresql.org/message-id/ff143b24-a093-40da-9833-d36b83726bdf%40iki.fi
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README.md

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/.