10260c794b
The emulation of fstat() in win32stat.c caused two issues with the existing in-core callers, failing on EINVAL when using a stream as argument: - psql's \copy would crash when using a stream. - pg_recvlogical would fail with -f -. The tests in copyselect.sql from the main test suite covers the first case, and there is a TAP test for the second case. However, in both cases, as the standard streams are always redirected, automated tests did not notice those issues, requiring a terminal on Windows to be reproducible. This issue has been introduced in bed9075, and the origin of the problem is that GetFileInformationByHandle() does not work directly on streams, so this commit adds an extra code path to emulate and return a set of stats that match best with the reality. Note that redirected streams rely on handles that can be queried with GetFileInformationByHandle(), but we can rely on GetFinalPathNameByHandleA() to detect this case. Author: Dmitry Koval, Juan José Santamaría Flecha Discussion: https://postgr.es/m/17288-6b58a91025a8a8a3@postgresql.org Backpatch-through: 14
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/.