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Michael Paquier b0a55f4d4a Add TAP test to automate the equivalent of check_guc 
src/backend/utils/misc/check_guc is a script that cross-checks the
consistency of the GUCs with postgresql.conf.sample, making sure that
its format is in line with what guc.c has.  It has never been run
automatically, and has rotten over the years, creating a lot of false
positives as per a report from Justin Pryzby.

d10e41d has introduced a SQL function to publish the most relevant flags
associated to a GUC, with tests added in the main regression test suite
to make sure that we avoid most of the inconsistencies in the GUC
settings, based on recent reports, but there was nothing able to
cross-check postgresql.conf.sample with the contents of guc.c.

This commit adds a TAP test that covers the remaining gap.  It emulates
the most relevant checks that check_guc does, so as any format mistakes
are detected in postgresql.conf.sample at development stage, with the
following checks:
- Check that parameters marked as NOT_IN_SAMPLE are not in the sample
file.
- Check that there are no dead entries in postgresql.conf.sample for
parameters not marked as NOT_IN_SAMPLE.
- Check that no parameters are missing from the sample file if listed in
guc.c without NOT_IN_SAMPLE.

The idea of building a list of the GUCs by parsing the sample file comes
from Justin, and he wrote the regex used in the patch to find all the
GUCs (this same formatting rule basically applies for the last 20~ years
or so).  In order to test this patch, I have played with manual
modifications of postgresql.conf.sample and guc.c, making sure that we
detect problems with the GUC rules and the sample file format.

The test is located in src/test/modules/test_misc, which is the best
location I could think about for such sanity checks.

Reviewed-by: Justin Pryzby
Discussion: https://postgr.es/m/Yf9YGSwPiMu0c7fP@paquier.xyz
2022-02-09 10:15:26 +09:00
config Remove configure's check for rl_completion_append_character. 2022-02-02 23:01:56 -05:00
contrib Reduce non-leaf keys overlap in GiST indexes produced by a sorted build 2022-02-07 23:20:42 +03:00
doc pg_upgrade: Move all the files generated internally to a subdirectory 2022-02-06 12:27:29 +09:00
src Add TAP test to automate the equivalent of check_guc 2022-02-09 10:15:26 +09:00
.cirrus.yml windows: Improve crash / assert / exception handling. 2022-02-02 18:33:25 -08:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.editorconfig Add .editorconfig 2019-12-18 09:13:13 +01:00
.git-blame-ignore-revs Add another old commit to git-blame-ignore-revs. 2021-11-03 17:34:19 -07:00
.gitattributes gitattributes: Add new entry to silence whitespace error 2021-06-05 07:57:31 +02:00
.gitignore Support for optimizing and emitting code in LLVM JIT provider. 2018-03-22 11:05:22 -07:00
aclocal.m4 Probe $PROVE not $PERL while checking for modules needed by TAP tests. 2021-11-22 12:54:52 -05:00
configure Remove configure's check for rl_completion_append_character. 2022-02-02 23:01:56 -05:00
configure.ac Make EXEC_BACKEND more convenient on Linux and FreeBSD. 2022-01-11 00:04:33 +13:00
COPYRIGHT Update copyright for 2022 2022-01-07 19:04:57 -05:00
GNUmakefile.in add missing tag from commit b8c4261e5e 2021-07-01 15:47:46 -04:00
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Dynamically find correct installation docs in Makefile. 2022-01-19 14:48:25 +01:00
README Canonicalize some URLs 2020-02-10 20:47:50 +01:00
README.git Canonicalize some URLs 2020-02-10 20:47:50 +01:00

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/.