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Michael Paquier 009f8d1714 Extend check_GUC_init() with checks on flag combinations when loading GUCs 
This extends the work begun by a73952b, with the addition of a GUC check
for flag combinations in check_GUC_init(), making sure that anything
defined with GUC_NO_SHOW_ALL also includes GUC_NOT_IN_SAMPLE, as first
step.  There has never been any GUCs of this kind in the core code, and
this combination makes little sense as a parameter marked as not fit for
SHOW ALL should not be hidden in postgresql.conf.sample.

Note that GUCs marked with GUC_NO_SHOW_ALL are not listed under
pg_settings or SHOW ALL (still they can be queried individually), making
them unfit for checks via SQL queries in the regression tests that do a
full scan of the parameters available.  The SQL tests are still a bit
incorrect about that, and will be cleaned up in a separate commit.  We
have also discussed the possibility to extend the SQL functions for GUCs
so as they could show more information about parameters defined with
GUC_NO_SHOW_ALL, though it has been concluded that this is not worth the
extra complication in the long run, an enforced policy at initialization
time being enough to do the same job.

Per discussion with Nitin Jadhav and Tom Lane.

Discussion: https://postgr.es/m/CAMm1aWaYe0muu3ABo7iSAgK+OWDS9yNe8GGRYnCyeEpScYKa+g@mail.gmail.com
 		2023-02-06 15:22:04 +09:00
config autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
contrib dblink: Fix variable confusion introduced in e4602483e9 2023-01-31 17:47:53 -08:00
doc Add support for progress reporting to pg_verifybackup 2023-02-06 14:40:31 +09:00
src Extend check_GUC_init() with checks on flag combinations when loading GUCs 2023-02-06 15:22:04 +09:00
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README 

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/.