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Commit f831d4acc changed what pg_dump emits for some empty fields: they were output as empty strings before, NULL pointer afterwards. That makes old pg_restore unable to work (crash) with such files, which is unacceptable. Return to the original representation by explicitly setting those struct members to "" where needed; remove some no longer needed checks for NULL input. We can declutter the code a little by returning to NULLs when we next update the archive version, so add a note to remind us later. Discussion: https://postgr.es/m/20190225074539.az6j3u464cvsoxh6@depesz.com Reported-by: hubert depesz lubaczewski Author: Dmitry Dolgov
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/.
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