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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
src/test/authentication/README
Regression tests for authentication
===================================
This directory contains a test suite for authentication. SSL certificate
authentication tests are kept separate, in src/test/ssl/, because they
are more complicated, and are not safe to run in a multi-user system.
Running the tests
=================
NOTE: You must have given the --enable-tap-tests argument to configure.
Run
make check
or
make installcheck
You can use "make installcheck" if you previously did "make install".
In that case, the code in the installation tree is tested. With
"make check", a temporary installation tree is built from the current
sources and then tested.
Either way, this test initializes, starts, and stops a test Postgres
cluster.
See src/test/perl/README for more info about running these tests.