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In order for this to be safe, the code which hands true serializability will need to taught that the SIRead locks taken by a parallel worker pertain to the same transaction as those taken by the parallel leader. Some further changes may be needed as well. Until the necessary adaptations are made, don't generate parallel plans in serializable mode, and if a previously-generated parallel plan is used after serializable mode has been activated, run it serially. This fixes a bug in commit 7aea8e4f2daa4b39ca9d1309a0c4aadb0f7ed81b.
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/.