b277057648
Don't assert MultiXactIdIsRunning if the multi came from a tuple that had been share-locked and later copied over to the new cluster by pg_upgrade. Doing that causes an error to be raised unnecessarily: MultiXactIdIsRunning is not open to the possibility that its argument came from a pg_upgraded tuple, and all its other callers are already checking; but such multis cannot, obviously, have transactions still running, so the assert is pointless. Noticed while investigating the bogus pg_multixact/offsets/0000 file left over by pg_upgrade, as reported by Andres Freund in http://www.postgresql.org/message-id/20140530121631.GE25431@alap3.anarazel.de Backpatch to 9.3, as the commit that introduced the buglet.
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/.