3c4e26a62c
If the system-name field of a pg_ident.conf line is a regex containing capturing parentheses, you can write \1 in the user-name field to represent the captured part of the system name. But what happens if you write \1 more than once? The only reasonable expectation IMO is that each \1 gets replaced, but presently our code replaces only the first. Fix that. Also, improve the tests for this feature to exercise cases where a non-empty string needs to be substituted for \1. The previous testing didn't inspire much faith that it was verifying correct operation of the substitution code. Given the lack of field complaints about this, I don't feel a need to back-patch. Reported-by: David G. Johnston <david.g.johnston@gmail.com> Author: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://postgr.es/m/CAKFQuwZu6kZ8ZPvJ3pWXig+6UX4nTVK-hdL_ZS3fSdps=RJQQQ@mail.gmail.com
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/.