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When copying from an active database tree, it's possible for files to be deleted after we see them in a readdir() scan but before we can open them. (Once we've got a file open, we don't expect any further errors from it getting unlinked, though.) Tweak RecursiveCopy so it can cope with this case, so as to avoid irreproducible test failures. Back-patch to 9.6 where this code was added. In v10 and HEAD, also remove unused "use RecursiveCopy" in one recovery test script. Michael Paquier and Tom Lane Discussion: https://postgr.es/m/24621.1504924323@sss.pgh.pa.us
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/.