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pg_restore will currently accept invalid values for the number of parallel jobs to run (eg: -1), unlike pg_dump which does check that the value provided is reasonable. Worse, '-1' is actually a valid, independent, parameter (as an alias for --single-transaction), leading to potentially completely unexpected results from a command line such as: -> pg_restore -j -1 Where a user would get neither parallel jobs nor a single-transaction. Add in validity checking of the parallel jobs option, as we already have in pg_dump, before we try to open up the archive. Also move the check that we haven't been asked to run more parallel jobs than possible on Windows to the same place, so we do all the option validity checking before opening the archive. Back-patch all the way, though for 9.2 we're adding the Windows-specific check against MAXIMUM_WAIT_OBJECTS as that check wasn't back-patched originally. Discussion: https://www.postgresql.org/message-id/20170110044815.GC18360%40tamriel.snowman.net |
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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: http://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 http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.