23a2b818f5
When replica identity full is being used with a wide tuple (above 2^16 bytes after compression) it lead to errors and/or crashes during decoding because the length field used to store such tuples doesn't fit into the variable used to store the width in the WAL record. To fix, discontinue use of xl_heap_header_len.t_len when decoding the old tuple version, instead compute length of the old tuple by subtracting the new tuple's length from the record length. In newer version of postgres this issue is moot because the length is stored by the new WAL machinery, instead of a xl_heap_header_len struct. A separate commit will forward-patch the regression test. Reported-By: "anderson" Discussion: http://postgr.es/m/20170105144819.f6i5o64vfvy4bn5i@alap3.anarazel.de
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/.