This name is only used as documentation, and using this name is consistent with its byte being a 'w'. Renaming it would also make the use of a symbolic name based on the word "WAL" rather than the obsolete "XLog" term more consistent, per future commits along the lines of 37c7a7eeb6d1, 4a68d5008869, f4b54e1ed985. Discussion: https://postgr.es/m/aIECfYfevCUpenBT@nathan
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/.