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Unlogged relations are only reset when performing a unclean restart. That means they have to be synced to disk during clean shutdowns. During normal processing that's achieved by registering a buffer's file to be fsynced at the next checkpoint when flushed. But ResetUnloggedRelations() doesn't go through the buffer manager, so nothing will force reset relations to disk before the next shutdown checkpoint. So just make ResetUnloggedRelations() fsync the newly created main forks to disk. Discussion: 20140912112246.GA4984@alap3.anarazel.de Backpatch to 9.1 where unlogged tables were introduced. Abhijit Menon-Sen and Andres Freund
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/.