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Michael Paquier a282697088 Remove code in charge of freeing regexps generation by Lab.c 
bea3d7e has redesigned the regexp engine so as all the allocations go
through palloc() with a dedicated memory context.  hba.c had to cope
with the past memory management logic by going through all the HBA and
ident lines generated, then directly free all the regexps found in
AuthTokens to ensure that no leaks would happen.  Such leaks could
happen for example in the postmaster after a SIGHUP, in the event of
an HBA and/or ident reload failure where all the new content parsed must
be discarded, including all the regexps that may have been compiled.

Now that regexps are palloc()'d in their own memory context,
MemoryContextDelete() is enough to ensure that all the compiled regexps
are properly gone.  Simplifying this logic in hba.c has the effect to
only remove code.  Most of it is new in v16, except the part for regexps
compiled in ident entries for the system username, so doing this cleanup
now rather than when v17 opens for business will reduce future diffs
with the upcoming REL_16_STABLE.

Some comments were incorrect since bea3d7e, now fixed to reflect the
reality.

Reviewed-by: Bertrand Drouvot, Álvaro Herrera
Discussion: https://postgr.es/m/ZDdJ289Ky2qEj4h+@paquier.xyz
 		2023-04-14 07:27:44 +09:00
config Update config.guess and config.sub 2023-04-12 09:16:19 +02:00
contrib De-Revert "Add support for Kerberos credential delegation" 2023-04-13 08:55:07 -04:00
doc Explicitly require MIT Kerberos for GSSAPI 2023-04-13 08:55:13 -04:00
src Remove code in charge of freeing regexps generation by Lab.c 2023-04-14 07:27:44 +09:00
.cirrus.yml Allow to use system CA pool for certificate verification 2023-04-05 23:22:17 +02:00
.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 b6dfee28 to .git-blame-ignore-revs 2023-03-09 19:26:03 +09:00
.gitattributes gitattributes: Ignore imported pg_bsd_indent code for whitespace checks 2023-02-22 09:00:28 +01:00
.gitignore Update top-level .gitignore. 2022-12-04 15:23:00 -05:00
COPYRIGHT Update copyright for 2023 2023-01-02 15:00:37 -05:00
GNUmakefile.in Integrate pg_bsd_indent into our build/test infrastructure. 2023-02-12 12:22:21 -05:00
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
aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
configure Explicitly require MIT Kerberos for GSSAPI 2023-04-13 08:55:13 -04:00
configure.ac Explicitly require MIT Kerberos for GSSAPI 2023-04-13 08:55:13 -04:00
meson.build Explicitly require MIT Kerberos for GSSAPI 2023-04-13 08:55:13 -04:00
meson_options.txt meson: docs: Allow configuring simple/website style 2023-04-04 21:31:27 -07:00

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/.