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Thomas Munro e109e43921 Fix unlink() for STATUS_DELETE_PENDING on Windows. 
Commit f357233c assumed that it was OK to return ENOENT directly if
lstat() failed that way.  If we got STATUS_DELETE_PENDING while trying
to unlink a file that we had already unlinked successfully once before
but someone else still had open (on a kernel version that has "pending"
unlinks by default), then we would no longer reach the retry loop in
pgunlink().  That loop claims to be only for handling sharing violations
(a different phenomenon), but the errno is the same.

Restore that behavior with an explicit check, to see if it fixes the
occasional 'directory not empty' failures seen in the pg_upgrade tests
on CI.  Further improvements are possible with proposed upgrades to
modern Windows APIs that would replace this convoluted code.

Reported-by: Justin Pryzby <pryzby@telsasoft.com>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://postgr.es/m/20220920013122.GA31833%40telsasoft.com
Discussion: https://postgr.es/m/CA%2BhUKG%2BajSQ_8eu2AogTncOnZ5me2D-Cn66iN_-wZnRjLN%2Bicg%40mail.gmail.com
2022-10-25 16:26:58 +13:00
config meson: Add initial version of meson based build system 2022-09-21 22:37:17 -07:00
contrib Fix assertion failures while processing NEW_CID record in logical decoding. 2022-10-20 08:49:48 +05:30
doc doc: Fix type of cursor_position in jsonlog table 2022-10-25 09:29:21 +09:00
src Fix unlink() for STATUS_DELETE_PENDING on Windows. 2022-10-25 16:26:58 +13:00
.cirrus.yml meson: Add support for building with precompiled headers 2022-10-06 17:19:30 -07:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
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.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
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COPYRIGHT Update copyright for 2022 2022-01-07 19:04:57 -05:00
GNUmakefile.in Run tests of libpq on installcheck-world, checkprep and check-world 2022-06-03 13:15:20 +09:00
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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/.